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2
lib.scad
2
lib.scad
@@ -29,6 +29,7 @@ include <vitamins/batteries.scad>
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include <vitamins/blowers.scad>
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include <vitamins/bulldogs.scad>
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include <vitamins/buttons.scad>
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include <vitamins/cameras.scad>
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include <vitamins/components.scad>
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include <vitamins/displays.scad>
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include <vitamins/extrusions.scad>
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@@ -83,6 +84,7 @@ use <utils/rounded_cylinder.scad>
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use <utils/dogbones.scad>
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use <utils/tube.scad>
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use <utils/quadrant.scad>
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use <utils/gears.scad>
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use <utils/hanging_hole.scad>
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use <utils/fillet.scad>
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use <utils/rounded_polygon.scad>
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BIN
libtest.png
BIN
libtest.png
Binary file not shown.
|
Before Width: | Height: | Size: 811 KiB After Width: | Height: | Size: 813 KiB |
@@ -73,7 +73,7 @@ use <tests/spades.scad>
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use <tests/springs.scad>
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use <tests/SSRs.scad>
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use <tests/stepper_motors.scad>
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use <tests/swiss_clips.scad>
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use <tests/Swiss_clips.scad>
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use <tests/toggles.scad>
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use <tests/transformers.scad>
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use <tests/tubings.scad>
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@@ -385,7 +385,7 @@ sk_brackets_y = extrusion_brackets_y + 80;
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kp_pillow_blocks_y = sk_brackets_y + 50;
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scs_bearing_blocks_y = kp_pillow_blocks_y + 60;
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translate([x4 + 150, belts_y + 58]) {
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translate([x4 + 200, belts_y + 58]) {
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belt_test();
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translate([0, 60])
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@@ -74,7 +74,7 @@ module door_hinge(door_thickness) { //! Generates STL fo
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square([1, thickness + door_thickness]);
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}
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translate([dia / 2, thickness + door_thickness / 2])
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teardrop(r = screw_clearance_radius(pin_screw), h = 0);
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teardrop_plus(r = screw_clearance_radius(pin_screw), h = 0);
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}
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linear_extrude(thickness)
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difference() {
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@@ -127,7 +127,7 @@ module door_hinge_stat_stl() { //! Generates the STL for the stationary part
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square([dia, 1], center = true);
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}
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translate([0, dia / 2 + stat_clearance])
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teardrop(r = screw_clearance_radius(pin_screw), h = 0);
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teardrop_plus(r = screw_clearance_radius(pin_screw), h = 0);
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}
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}
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}
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129
readme.md
129
readme.md
@@ -22,20 +22,20 @@ See [usage](docs/usage.md) for requirements, installation instructions and a usa
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<tr><td> <a href = "#Ball_bearings">Ball_bearings</a> </td><td> <a href = "#KP_pillow_blocks">KP_pillow_blocks</a> </td><td> <a href = "#Ring_terminals">Ring_terminals</a> </td><td> <a href = "#Butt_box">Butt_box</a> </td><td> <a href = "#Bezier">Bezier</a> </td><td> <a href = "#Clip">Clip</a> </td></tr>
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<tr><td> <a href = "#Batteries">Batteries</a> </td><td> <a href = "#LDRs">LDRs</a> </td><td> <a href = "#Rockers">Rockers</a> </td><td> <a href = "#Cable_grommets">Cable_grommets</a> </td><td> <a href = "#Dogbones">Dogbones</a> </td><td> <a href = "#Global">Global</a> </td></tr>
|
||||
<tr><td> <a href = "#Belts">Belts</a> </td><td> <a href = "#LED_meters">LED_meters</a> </td><td> <a href = "#Rod">Rod</a> </td><td> <a href = "#Carriers">Carriers</a> </td><td> <a href = "#Fillet">Fillet</a> </td><td> <a href = "#Polyholes">Polyholes</a> </td></tr>
|
||||
<tr><td> <a href = "#Blowers">Blowers</a> </td><td> <a href = "#LEDs">LEDs</a> </td><td> <a href = "#SCS_bearing_blocks">SCS_bearing_blocks</a> </td><td> <a href = "#Corner_block">Corner_block</a> </td><td> <a href = "#Hanging_hole">Hanging_hole</a> </td><td> <a href = "#Rounded_rectangle">Rounded_rectangle</a> </td></tr>
|
||||
<tr><td> <a href = "#Bulldogs">Bulldogs</a> </td><td> <a href = "#Leadnuts">Leadnuts</a> </td><td> <a href = "#SK_brackets">SK_brackets</a> </td><td> <a href = "#Door_hinge">Door_hinge</a> </td><td> <a href = "#Layout">Layout</a> </td><td> <a href = "#Sphere">Sphere</a> </td></tr>
|
||||
<tr><td> <a href = "#Buttons">Buttons</a> </td><td> <a href = "#Light_strips">Light_strips</a> </td><td> <a href = "#SMDs">SMDs</a> </td><td> <a href = "#Door_latch">Door_latch</a> </td><td> <a href = "#Maths">Maths</a> </td><td> <a href = "#Teardrops">Teardrops</a> </td></tr>
|
||||
<tr><td> <a href = "#Cable_strips">Cable_strips</a> </td><td> <a href = "#Linear_bearings">Linear_bearings</a> </td><td> <a href = "#SSRs">SSRs</a> </td><td> <a href = "#Fan_guard">Fan_guard</a> </td><td> <a href = "#Offset">Offset</a> </td><td></td></tr>
|
||||
<tr><td> <a href = "#Cameras">Cameras</a> </td><td> <a href = "#Mains_sockets">Mains_sockets</a> </td><td> <a href = "#Screws">Screws</a> </td><td> <a href = "#Fixing_block">Fixing_block</a> </td><td> <a href = "#Quadrant">Quadrant</a> </td><td></td></tr>
|
||||
<tr><td> <a href = "#Circlips">Circlips</a> </td><td> <a href = "#Microswitches">Microswitches</a> </td><td> <a href = "#Sealing_strip">Sealing_strip</a> </td><td> <a href = "#Flat_hinge">Flat_hinge</a> </td><td> <a href = "#Round">Round</a> </td><td></td></tr>
|
||||
<tr><td> <a href = "#Components">Components</a> </td><td> <a href = "#Microview">Microview</a> </td><td> <a href = "#Sheets">Sheets</a> </td><td> <a href = "#Foot">Foot</a> </td><td> <a href = "#Rounded_cylinder">Rounded_cylinder</a> </td><td></td></tr>
|
||||
<tr><td> <a href = "#DIP">DIP</a> </td><td> <a href = "#Modules">Modules</a> </td><td> <a href = "#Spades">Spades</a> </td><td> <a href = "#Handle">Handle</a> </td><td> <a href = "#Rounded_polygon">Rounded_polygon</a> </td><td></td></tr>
|
||||
<tr><td> <a href = "#D_connectors">D_connectors</a> </td><td> <a href = "#Nuts">Nuts</a> </td><td> <a href = "#Spools">Spools</a> </td><td> <a href = "#PCB_mount">PCB_mount</a> </td><td> <a href = "#Sector">Sector</a> </td><td></td></tr>
|
||||
<tr><td> <a href = "#Displays">Displays</a> </td><td> <a href = "#O_ring">O_ring</a> </td><td> <a href = "#Springs">Springs</a> </td><td> <a href = "#PSU_shroud">PSU_shroud</a> </td><td> <a href = "#Sweep">Sweep</a> </td><td></td></tr>
|
||||
<tr><td> <a href = "#Extrusion_brackets">Extrusion_brackets</a> </td><td> <a href = "#Opengrab">Opengrab</a> </td><td> <a href = "#Stepper_motors">Stepper_motors</a> </td><td> <a href = "#Printed_box">Printed_box</a> </td><td> <a href = "#Thread">Thread</a> </td><td></td></tr>
|
||||
<tr><td> <a href = "#Extrusions">Extrusions</a> </td><td> <a href = "#PCB">PCB</a> </td><td> <a href = "#Swiss_clips">Swiss_clips</a> </td><td> <a href = "#Ribbon_clamp">Ribbon_clamp</a> </td><td> <a href = "#Tube">Tube</a> </td><td></td></tr>
|
||||
<tr><td> <a href = "#Fans">Fans</a> </td><td> <a href = "#PCBs">PCBs</a> </td><td> <a href = "#Toggles">Toggles</a> </td><td> <a href = "#SSR_shroud">SSR_shroud</a> </td><td></td><td></td></tr>
|
||||
<tr><td> <a href = "#Fuseholder">Fuseholder</a> </td><td> <a href = "#PSUs">PSUs</a> </td><td> <a href = "#Transformers">Transformers</a> </td><td> <a href = "#Screw_knob">Screw_knob</a> </td><td></td><td></td></tr>
|
||||
<tr><td> <a href = "#Blowers">Blowers</a> </td><td> <a href = "#LEDs">LEDs</a> </td><td> <a href = "#SCS_bearing_blocks">SCS_bearing_blocks</a> </td><td> <a href = "#Corner_block">Corner_block</a> </td><td> <a href = "#Gears">Gears</a> </td><td> <a href = "#Rounded_rectangle">Rounded_rectangle</a> </td></tr>
|
||||
<tr><td> <a href = "#Bulldogs">Bulldogs</a> </td><td> <a href = "#Leadnuts">Leadnuts</a> </td><td> <a href = "#SK_brackets">SK_brackets</a> </td><td> <a href = "#Door_hinge">Door_hinge</a> </td><td> <a href = "#Hanging_hole">Hanging_hole</a> </td><td> <a href = "#Sphere">Sphere</a> </td></tr>
|
||||
<tr><td> <a href = "#Buttons">Buttons</a> </td><td> <a href = "#Light_strips">Light_strips</a> </td><td> <a href = "#SMDs">SMDs</a> </td><td> <a href = "#Door_latch">Door_latch</a> </td><td> <a href = "#Horiholes">Horiholes</a> </td><td> <a href = "#Teardrops">Teardrops</a> </td></tr>
|
||||
<tr><td> <a href = "#Cable_strips">Cable_strips</a> </td><td> <a href = "#Linear_bearings">Linear_bearings</a> </td><td> <a href = "#SSRs">SSRs</a> </td><td> <a href = "#Fan_guard">Fan_guard</a> </td><td> <a href = "#Layout">Layout</a> </td><td></td></tr>
|
||||
<tr><td> <a href = "#Cameras">Cameras</a> </td><td> <a href = "#Mains_sockets">Mains_sockets</a> </td><td> <a href = "#Screws">Screws</a> </td><td> <a href = "#Fixing_block">Fixing_block</a> </td><td> <a href = "#Maths">Maths</a> </td><td></td></tr>
|
||||
<tr><td> <a href = "#Circlips">Circlips</a> </td><td> <a href = "#Microswitches">Microswitches</a> </td><td> <a href = "#Sealing_strip">Sealing_strip</a> </td><td> <a href = "#Flat_hinge">Flat_hinge</a> </td><td> <a href = "#Offset">Offset</a> </td><td></td></tr>
|
||||
<tr><td> <a href = "#Components">Components</a> </td><td> <a href = "#Microview">Microview</a> </td><td> <a href = "#Sheets">Sheets</a> </td><td> <a href = "#Foot">Foot</a> </td><td> <a href = "#Quadrant">Quadrant</a> </td><td></td></tr>
|
||||
<tr><td> <a href = "#DIP">DIP</a> </td><td> <a href = "#Modules">Modules</a> </td><td> <a href = "#Spades">Spades</a> </td><td> <a href = "#Handle">Handle</a> </td><td> <a href = "#Round">Round</a> </td><td></td></tr>
|
||||
<tr><td> <a href = "#D_connectors">D_connectors</a> </td><td> <a href = "#Nuts">Nuts</a> </td><td> <a href = "#Spools">Spools</a> </td><td> <a href = "#PCB_mount">PCB_mount</a> </td><td> <a href = "#Rounded_cylinder">Rounded_cylinder</a> </td><td></td></tr>
|
||||
<tr><td> <a href = "#Displays">Displays</a> </td><td> <a href = "#O_ring">O_ring</a> </td><td> <a href = "#Springs">Springs</a> </td><td> <a href = "#PSU_shroud">PSU_shroud</a> </td><td> <a href = "#Rounded_polygon">Rounded_polygon</a> </td><td></td></tr>
|
||||
<tr><td> <a href = "#Extrusion_brackets">Extrusion_brackets</a> </td><td> <a href = "#Opengrab">Opengrab</a> </td><td> <a href = "#Stepper_motors">Stepper_motors</a> </td><td> <a href = "#Printed_box">Printed_box</a> </td><td> <a href = "#Sector">Sector</a> </td><td></td></tr>
|
||||
<tr><td> <a href = "#Extrusions">Extrusions</a> </td><td> <a href = "#PCB">PCB</a> </td><td> <a href = "#Swiss_clips">Swiss_clips</a> </td><td> <a href = "#Ribbon_clamp">Ribbon_clamp</a> </td><td> <a href = "#Sweep">Sweep</a> </td><td></td></tr>
|
||||
<tr><td> <a href = "#Fans">Fans</a> </td><td> <a href = "#PCBs">PCBs</a> </td><td> <a href = "#Toggles">Toggles</a> </td><td> <a href = "#SSR_shroud">SSR_shroud</a> </td><td> <a href = "#Thread">Thread</a> </td><td></td></tr>
|
||||
<tr><td> <a href = "#Fuseholder">Fuseholder</a> </td><td> <a href = "#PSUs">PSUs</a> </td><td> <a href = "#Transformers">Transformers</a> </td><td> <a href = "#Screw_knob">Screw_knob</a> </td><td> <a href = "#Tube">Tube</a> </td><td></td></tr>
|
||||
<tr><td> <a href = "#Geared_steppers">Geared_steppers</a> </td><td> <a href = "#Panel_meters">Panel_meters</a> </td><td> <a href = "#Tubings">Tubings</a> </td><td> <a href = "#Socket_box">Socket_box</a> </td><td></td><td></td></tr>
|
||||
<tr><td> <a href = "#Green_terminals">Green_terminals</a> </td><td> <a href = "#Pillars">Pillars</a> </td><td> <a href = "#Variacs">Variacs</a> </td><td> <a href = "#Strap_handle">Strap_handle</a> </td><td></td><td></td></tr>
|
||||
<tr><td> <a href = "#Hot_ends">Hot_ends</a> </td><td> <a href = "#Pin_headers">Pin_headers</a> </td><td> <a href = "#Veroboard">Veroboard</a> </td><td></td><td></td><td></td></tr>
|
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@@ -133,7 +133,8 @@ Also single bearing balls are modelled as just a silver sphere and a BOM entry.
|
||||
| 1 | ```ball_bearing(BB6201)``` | Ball bearing 6201-2RS 12mm x 32mm x 10mm |
|
||||
| 1 | ```ball_bearing(BB624)``` | Ball bearing 624-2RS 4mm x 13mm x 5mm |
|
||||
| 1 | ```ball_bearing(BB6808)``` | Ball bearing 6808-2RS 40mm x 52mm x 7mm |
|
||||
| 5 | ``` bearing_ball(3)``` | Steel ball 3mm |
|
||||
| 1 | ```ball_bearing(BBSMR95)``` | Ball bearing SMR95ZZ 5mm x 9mm x 2.5mm |
|
||||
| 6 | ``` bearing_ball(3)``` | Steel ball 3mm |
|
||||
|
||||
|
||||
<a href="#top">Top</a>
|
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@@ -447,7 +448,8 @@ PCB cameras.
|
||||
### Properties
|
||||
| Function | Description |
|
||||
|:--- |:--- |
|
||||
| ```camera_connector(type)``` | The flex connector block for the camera itself |
|
||||
| ```camera_connector_pos(type)``` | The flex connector block for the camera itself's position |
|
||||
| ```camera_connector_size(type)``` | The flex connector block for the camera itself's size |
|
||||
| ```camera_lens(type)``` | Stack of lens parts, can be round, rectanular or rounded rectangular, with optional tapered aperture |
|
||||
| ```camera_lens_offset(type)``` | Offset of the lens center from the PCB centre |
|
||||
| ```camera_pcb(type)``` | The PCB part of the camera |
|
||||
@@ -456,6 +458,7 @@ PCB cameras.
|
||||
| Module | Description |
|
||||
|:--- |:--- |
|
||||
| ```camera(type)``` | Draw specified PCB camera |
|
||||
| ```camera_lens(type, offset = 0)``` | Draw the lens stack, with optional offset for making a clearance hole |
|
||||
|
||||
|
||||
|
||||
@@ -463,6 +466,7 @@ PCB cameras.
|
||||
| Qty | Module call | BOM entry |
|
||||
| ---:|:--- |:---|
|
||||
| 1 | ```camera(rpi_camera_v1)``` | Raspberry Pi camera V1 |
|
||||
| 1 | ```camera(rpi_camera_v2)``` | Raspberry Pi camera V2 |
|
||||
| 1 | ```camera(rpi_camera)``` | Raspberry Pi focusable camera |
|
||||
|
||||
|
||||
@@ -5217,6 +5221,53 @@ Rounded fillet for adding to corners.
|
||||
|
||||
|
||||
|
||||
<a href="#top">Top</a>
|
||||
|
||||
---
|
||||
<a name="Gears"></a>
|
||||
## Gears
|
||||
Utilities for making involute gears.
|
||||
|
||||
Formulas from <https://khkgears.net/new/gear_knowledge/gear_technical_reference/involute_gear_profile.html>
|
||||
<https://khkgears.net/new/gear_knowledge/gear_technical_reference/calculation_gear_dimensions.html>
|
||||
and <https://www.tec-science.com/mechanical-power-transmission/involute-gear/calculation-of-involute-gears/>
|
||||
|
||||
```involute_gear_profile()``` returns a polygon that can have the bore and spokes, etc, subtracted from it before linear extruding it to 3D.
|
||||
Helical gears can be made using ```twist``` and bevel gears using ```scale``` parameters of ```linear_extrude()```.
|
||||
|
||||
Gears with less than 19 teeth (when pressure angle is 20) are profile shifted to avoid undercutting the tooth root. 7 teeth is considered
|
||||
the practical minimum.
|
||||
|
||||
The clearance between tip and root defaults to module / 6, but can be overridden by setting the ```clearance``` parameter.
|
||||
|
||||
The origin of the rack is the left end of the pitch line and its width is below the pitch line. I.e. it does not include the addendum.
|
||||
|
||||
```involute_worm_profile()``` returns a tooth profile that can be passed to ```thread()``` to make worms.
|
||||
|
||||
|
||||
[utils/gears.scad](utils/gears.scad) Implementation.
|
||||
|
||||
[tests/gears.scad](tests/gears.scad) Code for this example.
|
||||
|
||||
### Functions
|
||||
| Function | Description |
|
||||
|:--- |:--- |
|
||||
| ```centre_distance(m, z1, z2, pa = 20)``` | Calculate distance between centres taking profile shift into account |
|
||||
| ```involute(r, u)``` | Involute of circle radius r at angle u in radians |
|
||||
| ```involute_gear_od(m, z, pa = 20)``` | involute gear outside diameter given modulus, tooth count and pressure angle |
|
||||
| ```involute_rack_tooth_profile(m, pa = 20, clearance = undef)``` | Calculate rack tooth profile given module and pressure angle |
|
||||
| ```involute_worm_profile(m, pa = 20, clearance = undef)``` | Calculate worm profile suitable for passing to thread() |
|
||||
| ```profile_shift(z, pa)``` | Calculate profile shift for small gears |
|
||||
|
||||
### Modules
|
||||
| Module | Description |
|
||||
|:--- |:--- |
|
||||
| ```involute_gear_profile(m, z, pa = 20, clearance = undef, steps = 20)``` | Calculate gear profile given module, number of teeth and pressure angle |
|
||||
| ```involute_rack_profile(m, z, w, pa = 20, clearance = undef)``` | Calculate rack profile given module, number of teeth and pressure angle |
|
||||
|
||||
|
||||
|
||||
|
||||
<a href="#top">Top</a>
|
||||
|
||||
---
|
||||
@@ -5237,6 +5288,31 @@ Method to print holes in mid air. See <https://hydraraptor.blogspot.com/2014/03/
|
||||
|
||||
|
||||
|
||||
<a href="#top">Top</a>
|
||||
|
||||
---
|
||||
<a name="Horiholes"></a>
|
||||
## Horiholes
|
||||
Utilities for depicting the staircase slicing of horizontal holes made with [`teardrop_plus()`](#teardrops), see <https://hydraraptor.blogspot.com/2020/07/horiholes-2.html>
|
||||
|
||||
|
||||
[utils/horiholes.scad](utils/horiholes.scad) Implementation.
|
||||
|
||||
[tests/horiholes.scad](tests/horiholes.scad) Code for this example.
|
||||
|
||||
### Functions
|
||||
| Function | Description |
|
||||
|:--- |:--- |
|
||||
| ```teardrop_plus_x(r, y, h)``` | Calculate the ordinate of a compensated teardrop given y and layer height. |
|
||||
|
||||
### Modules
|
||||
| Module | Description |
|
||||
|:--- |:--- |
|
||||
| ```horihole(r, z, h = 0, center = true)``` | For making horizontal holes that don't need support material and are correct dimensions |
|
||||
|
||||
|
||||
|
||||
|
||||
<a href="#top">Top</a>
|
||||
|
||||
---
|
||||
@@ -5279,17 +5355,21 @@ Maths utilities for manipulating vectors and matrices.
|
||||
|:--- |:--- |
|
||||
| ```angle_between(v1, v2)``` | Return the angle between two vectors |
|
||||
| ```augment(m)``` | Augment a matrix by adding an identity matrix to the right |
|
||||
| ```degrees(radians)``` | Convert degrees to radians |
|
||||
| ```euler(R)``` | Convert a rotation matrix to a Euler rotation vector. |
|
||||
| ```identity(n, x = 1)``` | Construct an arbitrary size identity matrix |
|
||||
| ```invert(m)``` | Invert a matrix |
|
||||
| ```nearly_zero(x)``` | True if x is close to zero |
|
||||
| ```radians(degrees)``` | Convert radians to degrees |
|
||||
| ```reverse(v)``` | Reverse a vector |
|
||||
| ```rot2_z(a)``` | Generate a 2x2 matrix to rotate around z |
|
||||
| ```rot3_z(a)``` | Generate a 3x3 matrix to rotate around z |
|
||||
| ```rotate(a, v)``` | Generate a 4x4 rotation matrix, ```a``` can be a vector of three angles or a single angle around ```z```, or around axis ```v``` |
|
||||
| ```rowswap(m, i, j)``` | Swap two rows of a matrix |
|
||||
| ```scale(v)``` | Generate a 4x4 matrix that scales by ```v```, which can be a vector of xyz factors or a scalar to scale all axes equally |
|
||||
| ```solve(m, i = 0, j = 0)``` | Solve each row ensuring diagonal is not zero |
|
||||
| ```solve_row(m, i)``` | Make diagonal one by dividing the row by it and subtract from other rows to make column zero |
|
||||
| ```sqr(x)``` | Square x |
|
||||
| ```transform(v, m)``` | Apply 4x4 transform to a 3 vector by extending it and cropping it again |
|
||||
| ```transform_points(path, m)``` | Apply transform to a path |
|
||||
| ```translate(v)``` | Generate a 4x4 translation matrix, ```v``` can be ```[x, y]```, ```[x, y, z]``` or ```z``` |
|
||||
@@ -5497,6 +5577,8 @@ specify a chamfer angle.
|
||||
Threads are by default solid, so the male version is wrapped around a cylinder and the female inside a tube. This can be suppressed to just get the helix, for
|
||||
example to make a printed pot with a screw top lid.
|
||||
|
||||
A left hand thread can be made by using mirror([0,1]).
|
||||
|
||||
Threads with a typical 60 degree angle appear too bright with OpenSCAD's primitive lighting model as they face towards the lights more than the top and sides of
|
||||
a cylinder. To get around this a colour can be passed to thread that is used to colour the cylinder and then toned down to colour the helix.
|
||||
|
||||
@@ -5523,7 +5605,7 @@ Threads obey the $fn, $fa, $fs variables.
|
||||
|:--- |:--- |
|
||||
| ```female_metric_thread(d, pitch, length, center = true, top = -1, bot = -1, colour = undef)``` | Create female thread with metric profile |
|
||||
| ```male_metric_thread(d, pitch, length, center = true, top = -1, bot = -1, solid = true, colour = undef)``` | Create male thread with metric profile |
|
||||
| ```thread(dia, pitch, length, profile, center = true, top = -1, bot = -1, starts = 1, solid = true, female = false, colour = undef)``` | Create male or femail thread, ends can be tapered, chamfered or square |
|
||||
| ```thread(dia, pitch, length, profile, center = true, top = -1, bot = -1, starts = 1, solid = true, female = false, colour = undef)``` | Create male or female thread, ends can be tapered, chamfered or square |
|
||||
|
||||
|
||||
|
||||
@@ -5803,6 +5885,9 @@ This ensures `hull` and `minkowski` results have the correct dimensions when sph
|
||||
For making horizontal holes that don't need support material.
|
||||
Small holes can get away without it, but they print better with truncated teardrops.
|
||||
|
||||
Using teardrop_plus() or setting the plus option on other modules will elongate the teardrop vertically by the layer height, so when sliced the staircase tips
|
||||
do not intrude into the circle. See <https://hydraraptor.blogspot.com/2020/07/horiholes-2.html>
|
||||
|
||||
|
||||
[utils/core/teardrops.scad](utils/core/teardrops.scad) Implementation.
|
||||
|
||||
@@ -5811,12 +5896,12 @@ Small holes can get away without it, but they print better with truncated teardr
|
||||
### Modules
|
||||
| Module | Description |
|
||||
|:--- |:--- |
|
||||
| ```semi_teardrop(h, r, d = undef, center = true, chamfer = 0)``` | A semi teardrop in the positive Y domain |
|
||||
| ```teardrop(h, r, center = true, truncate = true, chamfer = 0)``` | For making horizontal holes that don't need support material, set ```truncate = false``` to make traditional RepRap teardrops that don't even need bridging |
|
||||
| ```semi_teardrop(h, r, d = undef, center = true, chamfer = 0, plus = false)``` | A semi teardrop in the positive Y domain |
|
||||
| ```teardrop(h, r, center = true, truncate = true, chamfer = 0, plus = false)``` | For making horizontal holes that don't need support material, set ```truncate = false``` to make traditional RepRap teardrops that don't even need bridging |
|
||||
| ```teardrop_chamfer(h, center, chamfer)``` | Helper module for adding chamfer to a teardrop |
|
||||
| ```teardrop_plus(h, r, center = true, truncate = true, chamfer = 0)``` | Slightly bigger teardrop to allow for the 3D printing staircase effect |
|
||||
| ```tearslot(h, r, w, center = true, chamfer = 0)``` | A horizontal slot that doesn't need support material |
|
||||
| ```vertical_tearslot(h, r, l, center = true, chamfer = 0)``` | A vertical slot that doesn't need support material |
|
||||
| ```teardrop_plus(h, r, center = true, truncate = true, chamfer = 0)``` | Slightly elongated teardrop to allow for the 3D printing staircase effect |
|
||||
| ```tearslot(h, r, w, center = true, chamfer = 0, plus = false)``` | A horizontal slot that doesn't need support material |
|
||||
| ```vertical_tearslot(h, r, l, center = true, chamfer = 0, plus = false)``` | A vertical slot that doesn't need support material |
|
||||
|
||||
|
||||
|
||||
|
||||
66
tests/gears.scad
Normal file
66
tests/gears.scad
Normal file
@@ -0,0 +1,66 @@
|
||||
//
|
||||
// NopSCADlib Copyright Chris Palmer 2020
|
||||
// nop.head@gmail.com
|
||||
// hydraraptor.blogspot.com
|
||||
//
|
||||
// This file is part of NopSCADlib.
|
||||
//
|
||||
// NopSCADlib is free software: you can redistribute it and/or modify it under the terms of the
|
||||
// GNU General Public License as published by the Free Software Foundation, either version 3 of
|
||||
// the License, or (at your option) any later version.
|
||||
//
|
||||
// NopSCADlib is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
|
||||
// without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
||||
// See the GNU General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU General Public License along with NopSCADlib.
|
||||
// If not, see <https://www.gnu.org/licenses/>.
|
||||
//
|
||||
include <../utils/core/core.scad>
|
||||
use <../utils/gears.scad>
|
||||
|
||||
// left gear teeth
|
||||
z1 = 39; // [7 : 1 : 99]
|
||||
|
||||
// Right gear teeth
|
||||
z2 = 7; // [7 : 1 : 99]
|
||||
|
||||
// Modulus
|
||||
m = 2.0; // [0.1 : 0.1 : 5.0]
|
||||
|
||||
// Pressure angle
|
||||
pa = 20; // [14.5, 20, 22.5, 25]
|
||||
|
||||
$show_numbers = false;
|
||||
|
||||
module gears() {
|
||||
color(pp1_colour)
|
||||
rotate(-$t * 360)
|
||||
linear_extrude(eps, center = true, convexity = z1)
|
||||
difference() {
|
||||
involute_gear_profile(m, z1, pa);
|
||||
|
||||
circle(r = m * z1 / 10);
|
||||
}
|
||||
|
||||
color(pp2_colour)
|
||||
translate([centre_distance(m, z1, z2, pa), 0])
|
||||
rotate(180 + 180 / z2 + $t * 360 * z1 / z2)
|
||||
linear_extrude(eps, center = true, convexity = z2)
|
||||
difference() {
|
||||
involute_gear_profile(m, z2, pa);
|
||||
|
||||
circle(r = m * z2 / 10);
|
||||
}
|
||||
|
||||
z3 = floor((z1 + z2) / PI);
|
||||
angle = -$t * 360 + 90 - floor(z1 / 4) * 360 / z1; // Line up the rack 1/4 turn around the gear
|
||||
pitch = m * PI;
|
||||
color(pp3_colour)
|
||||
translate([(angle % ((z3 / z1) * 360)) / 360 * z1 * pitch, -centre_distance(m, z1, 0, pa)])
|
||||
linear_extrude(eps, center = true)
|
||||
involute_rack_profile(m, z3, 3 * m, pa);
|
||||
}
|
||||
|
||||
rotate(is_undef($bom) ? 0 : [70, 0, 315])
|
||||
gears();
|
||||
90
tests/horiholes.scad
Normal file
90
tests/horiholes.scad
Normal file
@@ -0,0 +1,90 @@
|
||||
//
|
||||
// NopSCADlib Copyright Chris Palmer 2020
|
||||
// nop.head@gmail.com
|
||||
// hydraraptor.blogspot.com
|
||||
//
|
||||
// This file is part of NopSCADlib.
|
||||
//
|
||||
// NopSCADlib is free software: you can redistribute it and/or modify it under the terms of the
|
||||
// GNU General Public License as published by the Free Software Foundation, either version 3 of
|
||||
// the License, or (at your option) any later version.
|
||||
//
|
||||
// NopSCADlib is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
|
||||
// without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
||||
// See the GNU General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU General Public License along with NopSCADlib.
|
||||
// If not, see <https://www.gnu.org/licenses/>.
|
||||
//
|
||||
$layer_height = 0.25;
|
||||
include <../utils/core/core.scad>
|
||||
use <../utils/horiholes.scad>
|
||||
|
||||
show_disc = true;
|
||||
use_horihole = true;
|
||||
thickness = 6;
|
||||
length = 60;
|
||||
height = 20;
|
||||
overlap_x = 15;
|
||||
overlap_y = 10;
|
||||
|
||||
module hole_positions() {
|
||||
x0 = (length - 40) / 2;
|
||||
for($i = [0 : 4], $z = 5 + $i * layer_height / 5, $r = 3)
|
||||
translate([x0 + $i * 10, $z])
|
||||
children();
|
||||
|
||||
for($i = [0 : 4], $z = 15 + $i * layer_height / 5, $r = 0.5 + $i / 2)
|
||||
translate([x0 + $i * 10, $z])
|
||||
children();
|
||||
}
|
||||
|
||||
module horiholes_stl(t = thickness) {
|
||||
rotate([90, 0, 0])
|
||||
difference() {
|
||||
linear_extrude(t, center = true) {
|
||||
difference() {
|
||||
square([length, height]);
|
||||
|
||||
hole_positions()
|
||||
if(use_horihole)
|
||||
horihole($r, $z);
|
||||
else
|
||||
teardrop_plus(h = 0, r = $r);
|
||||
}
|
||||
}
|
||||
}
|
||||
if(t == thickness)
|
||||
translate([length / 2, 0])
|
||||
rounded_rectangle([length + 2 * overlap_x, thickness + 2 * overlap_y, 2], 5);
|
||||
}
|
||||
|
||||
module horiholes() {
|
||||
stl_colour(pp1_colour)
|
||||
rotate([-90, 0, 0])
|
||||
horiholes_stl(eps);
|
||||
|
||||
if(show_disc)
|
||||
hole_positions()
|
||||
color(silver)
|
||||
cylinder(r = $r, h = eps, center = true, $fn = 360);
|
||||
|
||||
hole_positions()
|
||||
color("red")
|
||||
linear_extrude(2 * eps, center = true)
|
||||
intersection() {
|
||||
difference() {
|
||||
square(8, center = true);
|
||||
|
||||
horihole($r, $z);
|
||||
}
|
||||
|
||||
circle($r, $fn = 360);
|
||||
}
|
||||
}
|
||||
|
||||
if($preview)
|
||||
rotate(is_undef($bom) ? 0 : [70, 0, 315])
|
||||
horiholes();
|
||||
else
|
||||
horiholes_stl();
|
||||
Binary file not shown.
|
Before Width: | Height: | Size: 98 KiB After Width: | Height: | Size: 95 KiB |
Binary file not shown.
|
Before Width: | Height: | Size: 69 KiB After Width: | Height: | Size: 74 KiB |
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|
Before Width: | Height: | Size: 74 KiB After Width: | Height: | Size: 74 KiB |
Binary file not shown.
|
Before Width: | Height: | Size: 148 KiB After Width: | Height: | Size: 148 KiB |
BIN
tests/png/gears.png
Normal file
BIN
tests/png/gears.png
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 68 KiB |
BIN
tests/png/horiholes.png
Normal file
BIN
tests/png/horiholes.png
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 40 KiB |
Binary file not shown.
|
Before Width: | Height: | Size: 173 KiB After Width: | Height: | Size: 172 KiB |
Binary file not shown.
|
Before Width: | Height: | Size: 43 KiB After Width: | Height: | Size: 50 KiB |
Binary file not shown.
|
Before Width: | Height: | Size: 219 KiB After Width: | Height: | Size: 219 KiB |
Binary file not shown.
|
Before Width: | Height: | Size: 71 KiB After Width: | Height: | Size: 72 KiB |
@@ -67,7 +67,7 @@ module box1_external_additions() {
|
||||
|
||||
module box1_holes() {
|
||||
box1_feet_positions()
|
||||
teardrop(r = screw_pilot_hole(foot_screw(foot)), h = 10, center = true);
|
||||
teardrop_plus(r = screw_pilot_hole(foot_screw(foot)), h = 10, center = true);
|
||||
}
|
||||
|
||||
|
||||
|
||||
@@ -41,7 +41,10 @@ module teardrops() {
|
||||
|
||||
translate([20, 10])
|
||||
semi_teardrop(h = 0, r = 3);
|
||||
}
|
||||
|
||||
translate([20, 20])
|
||||
teardrop(h = 0, r = 3, truncate = false, plus = true);
|
||||
}
|
||||
}
|
||||
translate([40, 0, 1.5]) {
|
||||
h = 3 + eps;
|
||||
@@ -61,6 +64,9 @@ module teardrops() {
|
||||
|
||||
translate([20, 10])
|
||||
semi_teardrop(h = h, r = 3, chamfer = chamfer);
|
||||
|
||||
translate([20, 20])
|
||||
teardrop(h = h, r = 3, truncate = false, plus = false, chamfer = chamfer);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@@ -26,27 +26,27 @@ profile = thread_profile(pitch / 2, pitch * 0.366, 30);
|
||||
|
||||
module threads()
|
||||
for(female = [false, true]) translate([0, female ? -20 : 0]) {
|
||||
length = female ? 8 : 40;
|
||||
dia = female ? 8 : 8 - pitch;
|
||||
colour = female ? brass : silver;
|
||||
length = female ? 8 : 40;
|
||||
dia = female ? 8 : 8 - pitch;
|
||||
colour = female ? brass : silver;
|
||||
|
||||
thread(dia, starts * pitch, length, profile, starts = starts, top = 45, bot = 45, female = female, colour = colour);
|
||||
thread(dia, starts * pitch, length, profile, starts = starts, top = 45, bot = 45, female = female, colour = colour);
|
||||
|
||||
color(colour)
|
||||
translate([20, 0])
|
||||
thread(dia, starts * pitch, length, profile, starts = starts, top = 0, bot = 0, female = female);
|
||||
color(colour)
|
||||
translate([20, 0])
|
||||
thread(dia, starts * pitch, length, profile, starts = starts, top = 0, bot = 0, female = female);
|
||||
|
||||
translate([40, 0])
|
||||
thread(dia, starts * pitch, length, profile, starts = starts, top = -1, bot = -1, female = female, colour = colour);
|
||||
translate([40, 0])
|
||||
thread(dia, starts * pitch, length, profile, starts = starts, top = -1, bot = -1, female = female, colour = colour);
|
||||
|
||||
color(colour)
|
||||
translate([60, 0])
|
||||
thread(dia, 2 * pitch, length, profile, starts = 2, top = -1, bot = -1, female = female);
|
||||
color(colour)
|
||||
translate([60, 0])
|
||||
thread(dia, 2 * pitch, length, profile, starts = 2, top = -1, bot = -1, female = female);
|
||||
|
||||
color(colour)
|
||||
translate([80, 0])
|
||||
thread(dia, pitch, length, profile, starts = 1, top = -1, bot = -1, female = female);
|
||||
}
|
||||
color(colour)
|
||||
translate([80, 0])
|
||||
thread(dia, pitch, length, profile, starts = 1, top = -1, bot = -1, female = female);
|
||||
}
|
||||
|
||||
let($show_threads = true)
|
||||
threads();
|
||||
|
||||
@@ -20,17 +20,32 @@
|
||||
//
|
||||
//! For making horizontal holes that don't need support material.
|
||||
//! Small holes can get away without it, but they print better with truncated teardrops.
|
||||
//!
|
||||
//! Using teardrop_plus() or setting the plus option on other modules will elongate the teardrop vertically by the layer height, so when sliced the staircase tips
|
||||
//! do not intrude into the circle. See <https://hydraraptor.blogspot.com/2020/07/horiholes-2.html>
|
||||
//
|
||||
module teardrop(h, r, center = true, truncate = true, chamfer = 0) { //! For making horizontal holes that don't need support material, set ```truncate = false``` to make traditional RepRap teardrops that don't even need bridging
|
||||
module teardrop(h, r, center = true, truncate = true, chamfer = 0, plus = false) { //! For making horizontal holes that don't need support material, set ```truncate = false``` to make traditional RepRap teardrops that don't even need bridging
|
||||
module teardrop_2d(r, truncate) {
|
||||
hull() {
|
||||
circle4n(r);
|
||||
if(truncate)
|
||||
translate([0, r / 2])
|
||||
square([2 * r * (sqrt(2) - 1), r], center = true);
|
||||
else
|
||||
polygon([[0, 0], [eps, 0], [0, r * sqrt(2)]]);
|
||||
}
|
||||
er = layer_height / 2 - eps; // Extrustion edge radius
|
||||
R = plus ? r + er : r; // Corrected radius
|
||||
offset = plus ? -er : 0; // Offset inwards
|
||||
hull()
|
||||
for(side = [0 : 1])
|
||||
mirror([side, 0, 0])
|
||||
intersection() {
|
||||
hull()
|
||||
translate([offset, 0]) {
|
||||
circle4n(R);
|
||||
|
||||
if(truncate)
|
||||
translate([0, R / 2])
|
||||
square([2 * R * (sqrt(2) - 1), R], center = true);
|
||||
else
|
||||
polygon([[0, 0], [eps, 0], [0, R * sqrt(2)]]);
|
||||
}
|
||||
translate([0, -2 * R])
|
||||
square([R, 4 * R]);
|
||||
}
|
||||
}
|
||||
|
||||
render(convexity = 5)
|
||||
@@ -40,23 +55,23 @@ module teardrop(h, r, center = true, truncate = true, chamfer = 0) { //! For mak
|
||||
teardrop_chamfer(h, center, chamfer) {
|
||||
linear_extrude(eps, center = true)
|
||||
teardrop_2d(r + chamfer / 2, truncate);
|
||||
|
||||
translate_z(-chamfer / 2)
|
||||
linear_extrude(eps, center = true)
|
||||
teardrop_2d(r, truncate);
|
||||
}
|
||||
}
|
||||
|
||||
module semi_teardrop(h, r, d = undef, center = true, chamfer = 0) { //! A semi teardrop in the positive Y domain
|
||||
module semi_teardrop_2d(r, d) {
|
||||
module semi_teardrop(h, r, d = undef, center = true, chamfer = 0, plus = false) { //! A semi teardrop in the positive Y domain
|
||||
module semi_teardrop_2d(r, d)
|
||||
intersection() {
|
||||
R = is_undef(d) ? r : d / 2;
|
||||
teardrop(r = R, h = 0);
|
||||
teardrop(r = R, h = 0, plus = plus);
|
||||
|
||||
sq = R + 1;
|
||||
translate([-sq, 0])
|
||||
square([2 * sq, sq]);
|
||||
}
|
||||
}
|
||||
|
||||
render(convexity = 5)
|
||||
extrude_if(h, center)
|
||||
@@ -65,22 +80,21 @@ module semi_teardrop(h, r, d = undef, center = true, chamfer = 0) { //! A semi t
|
||||
teardrop_chamfer(h, center, chamfer) {
|
||||
linear_extrude(eps, center = true)
|
||||
semi_teardrop_2d(r + chamfer / 2, d);
|
||||
|
||||
translate_z(-chamfer / 2)
|
||||
linear_extrude(eps, center = true)
|
||||
semi_teardrop_2d(r, d);
|
||||
}
|
||||
}
|
||||
|
||||
module teardrop_plus(h, r, center = true, truncate = true, chamfer = 0) //! Slightly bigger teardrop to allow for the 3D printing staircase effect
|
||||
teardrop(h, r + layer_height / 4, center, truncate, chamfer);
|
||||
module teardrop_plus(h, r, center = true, truncate = true, chamfer = 0) //! Slightly elongated teardrop to allow for the 3D printing staircase effect
|
||||
teardrop(h, r, center, truncate, chamfer, plus = true);
|
||||
|
||||
module tearslot(h, r, w, center = true, chamfer = 0) { //! A horizontal slot that doesn't need support material
|
||||
module tearslot_2d(r, w) {
|
||||
hull() {
|
||||
translate([-w / 2, 0]) teardrop(r = r, h = 0);
|
||||
translate([w / 2, 0]) teardrop(r = r, h = 0);
|
||||
}
|
||||
}
|
||||
module tearslot(h, r, w, center = true, chamfer = 0, plus = false) { //! A horizontal slot that doesn't need support material
|
||||
module tearslot_2d(r, w)
|
||||
hull()
|
||||
for(x = [-1, 1])
|
||||
translate([x * w / 2, 0]) teardrop(r = r, h = 0, plus = plus);
|
||||
|
||||
extrude_if(h, center)
|
||||
tearslot_2d(r, w);
|
||||
@@ -88,19 +102,19 @@ module tearslot(h, r, w, center = true, chamfer = 0) { //! A horizontal slot tha
|
||||
teardrop_chamfer(h, center, chamfer) {
|
||||
linear_extrude(eps, center = true)
|
||||
tearslot_2d(r + chamfer / 2, w);
|
||||
|
||||
translate_z(-chamfer / 2)
|
||||
linear_extrude(eps, center = true)
|
||||
tearslot_2d(r, w);
|
||||
}
|
||||
}
|
||||
|
||||
module vertical_tearslot(h, r, l, center = true, chamfer = 0) { //! A vertical slot that doesn't need support material
|
||||
module vertical_tearslot_2d(r, l) {
|
||||
hull() {
|
||||
translate([0, l / 2]) teardrop(0, r, true);
|
||||
translate([0, -l / 2]) circle4n(r);
|
||||
}
|
||||
}
|
||||
module vertical_tearslot(h, r, l, center = true, chamfer = 0, plus = false) { //! A vertical slot that doesn't need support material
|
||||
module vertical_tearslot_2d(r, l)
|
||||
hull()
|
||||
for(y = [-1, 1])
|
||||
translate([0, y * l / 2])
|
||||
teardrop(0, r, true, plus = plus);
|
||||
|
||||
extrude_if(h, center)
|
||||
vertical_tearslot_2d(r, l);
|
||||
@@ -108,6 +122,7 @@ module vertical_tearslot(h, r, l, center = true, chamfer = 0) { //! A vertical s
|
||||
teardrop_chamfer(h, center, chamfer) {
|
||||
linear_extrude(eps, center = true)
|
||||
vertical_tearslot_2d(r + chamfer / 2, l);
|
||||
|
||||
translate_z(-chamfer / 2)
|
||||
linear_extrude(eps, center = true)
|
||||
vertical_tearslot_2d(r, l);
|
||||
@@ -123,4 +138,3 @@ module teardrop_chamfer(h, center, chamfer) { //! Helper module for adding chamf
|
||||
hull()
|
||||
children();
|
||||
}
|
||||
|
||||
|
||||
138
utils/gears.scad
Normal file
138
utils/gears.scad
Normal file
@@ -0,0 +1,138 @@
|
||||
//
|
||||
// NopSCADlib Copyright Chris Palmer 2020
|
||||
// nop.head@gmail.com
|
||||
// hydraraptor.blogspot.com
|
||||
//
|
||||
// This file is part of NopSCADlib.
|
||||
//
|
||||
// NopSCADlib is free software: you can redistribute it and/or modify it under the terms of the
|
||||
// GNU General Public License as published by the Free Software Foundation, either version 3 of
|
||||
// the License, or (at your option) any later version.
|
||||
//
|
||||
// NopSCADlib is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
|
||||
// without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
||||
// See the GNU General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU General Public License along with NopSCADlib.
|
||||
// If not, see <https://www.gnu.org/licenses/>.
|
||||
//
|
||||
|
||||
//
|
||||
//! Utilities for making involute gears.
|
||||
//!
|
||||
//! Formulas from <https://khkgears.net/new/gear_knowledge/gear_technical_reference/involute_gear_profile.html>
|
||||
//! <https://khkgears.net/new/gear_knowledge/gear_technical_reference/calculation_gear_dimensions.html>
|
||||
//! and <https://www.tec-science.com/mechanical-power-transmission/involute-gear/calculation-of-involute-gears/>
|
||||
//!
|
||||
//! ```involute_gear_profile()``` returns a polygon that can have the bore and spokes, etc, subtracted from it before linear extruding it to 3D.
|
||||
//! Helical gears can be made using ```twist``` and bevel gears using ```scale``` parameters of ```linear_extrude()```.
|
||||
//!
|
||||
//! Gears with less than 19 teeth (when pressure angle is 20) are profile shifted to avoid undercutting the tooth root. 7 teeth is considered
|
||||
//! the practical minimum.
|
||||
//!
|
||||
//! The clearance between tip and root defaults to module / 6, but can be overridden by setting the ```clearance``` parameter.
|
||||
//!
|
||||
//! The origin of the rack is the left end of the pitch line and its width is below the pitch line. I.e. it does not include the addendum.
|
||||
//!
|
||||
//! ```involute_worm_profile()``` returns a tooth profile that can be passed to ```thread()``` to make worms.
|
||||
//
|
||||
include <core/core.scad>
|
||||
use <maths.scad>
|
||||
|
||||
function involute(r, u) = let(a = degrees(u), c = cos(a), s = sin(a)) r * [c + u * s, s - u * c]; //! Involute of circle radius r at angle u in radians
|
||||
|
||||
function profile_shift(z, pa) = z ? max(1 - z * sqr(sin(pa)) / 2, 0) : 0; //! Calculate profile shift for small gears
|
||||
|
||||
function centre_distance(m, z1, z2, pa = 20) = //! Calculate distance between centres taking profile shift into account
|
||||
let(x1 = profile_shift(z1, pa), x2 = profile_shift(z2, pa)) m * (z1/2 + z2/2 + x1 + x2);
|
||||
|
||||
function involute_gear_od(m, z, pa = 20) = //! involute gear outside diameter given modulus, tooth count and pressure angle
|
||||
m * (z + 2 * profile_shift(z, pa) + 2);
|
||||
|
||||
module involute_gear_profile(m, z, pa = 20, clearance = undef, steps = 20) { //! Calculate gear profile given module, number of teeth and pressure angle
|
||||
assert(z >= 7, "Gears must have at least 7 teeth.");
|
||||
d = m * z; // Reference pitch circle diameter
|
||||
x = profile_shift(z, pa); // Profile shift
|
||||
c = is_undef(clearance) ? m / 6 : clearance; // Clearance from tip to root
|
||||
|
||||
base_d = d * cos(pa); // Base diameter
|
||||
root_r = d / 2 + m * (x - 1) - c; // Root radius (dedendum circle radius)
|
||||
tip_d = d + 2 * m * (1 + x); // Tip diameter (addendum circle diameter)
|
||||
tpa = acos(base_d / tip_d); // Tip pressure angle
|
||||
inva = tan(pa) - radians(pa); // Involute alpha
|
||||
invaa = tan(tpa) - radians(tpa); // Involute alphaa
|
||||
ta = PI / (2 * z) + 2 * x * tan(pa) / z + inva - invaa; // Tooth tip thickness angle, radians
|
||||
crest_w = ta * tip_d; // Crest width
|
||||
umax = sqrt(sqr(tip_d / base_d) - 1); // Max value of the involute parameter
|
||||
|
||||
base_r = base_d / 2;
|
||||
p1 = involute(base_r, 0);
|
||||
p2 = involute(base_r, umax);
|
||||
dist = norm(p2 - p1); // distance between beginning and end of the involute curve
|
||||
|
||||
base_angle = 2 * acos((sqr(base_r) + sqr(tip_d / 2) - sqr(dist)) / base_r / tip_d) + degrees(2 * ta);
|
||||
root_angle = 360 / z - base_angle;
|
||||
root_circle_r = base_r * sin(root_angle / 2);
|
||||
|
||||
if(!is_undef($show_numbers) && $show_numbers) {
|
||||
echo(d=d);
|
||||
echo(base_d=base_d);
|
||||
echo(tip_d=tip_d);
|
||||
echo(tpa = tpa);
|
||||
echo(inva=inva);
|
||||
echo(invaa=invaa);
|
||||
echo(x=x);
|
||||
echo(ta=ta);
|
||||
echo(crest_w=crest_w);
|
||||
echo(umax = umax);
|
||||
echo(base_angle=base_angle);
|
||||
echo(root_angle=root_angle);
|
||||
}
|
||||
involute = [for(i = [0 : steps], u = umax * i / steps) involute(base_r, u)]; // involute for the bottom side of the tooth
|
||||
truncated = [for(p = involute) if((rot2_z(-base_angle / 2) * p).y <= 0) p]; // removed any above the centreline to prevent overlap
|
||||
reflection = reverse([for(p = truncated) rot2_z(base_angle) * [p.x, -p.y] ]); // reflect and rotate to make the top edge
|
||||
|
||||
root = reverse([for(a = [90 : 180 / steps : 270]) rot2_z(base_angle + root_angle / 2) * ([base_r, 0] + root_circle_r * [cos(a), sin(a)]) ]);
|
||||
tooth = concat(truncated, reflection, root);
|
||||
gear = concat([for(i = [0 : z - 1], p = tooth) rot2_z(i * 360 / z) * p]);
|
||||
rotate(-base_angle / 2)
|
||||
union() {
|
||||
polygon(gear);
|
||||
|
||||
circle(root_r);
|
||||
}
|
||||
}
|
||||
|
||||
function involute_rack_tooth_profile(m, pa = 20, clearance = undef) = //! Calculate rack tooth profile given module and pressure angle
|
||||
let(p = PI * m, // Pitch
|
||||
ha = m, // Addendum
|
||||
c = is_undef(clearance) ? m / 4 : clearance, // Tip root clearance
|
||||
hf = m + c, // Dedendum
|
||||
hw = 2 * m, // Working depth
|
||||
h = ha + hf, // Tooth depth
|
||||
crest_w = p / 2 - 2 * ha * tan(pa), // Crest width
|
||||
base_w = crest_w + 2 * hw * tan(pa), // Base width
|
||||
root_w = p - base_w, // Root width
|
||||
clearance_w = root_w - 2 * c * tan(pa), // Width of clearance without fillet
|
||||
kx = tan(pa / 2 + 45), // Fillet ratio of radius and xoffset
|
||||
pf = min(0.38 * m, kx * clearance_w / 2), // Dedendum fillet radius
|
||||
x = pf / kx, // Fillet centre x offset from corner
|
||||
sides = ceil(r2sides(pf) * (90 - pa) / 360), // Fillet facets taking $fa, $fs and $fn into account
|
||||
fillet = [ for(i = [0 : sides - 1], a = i * (90 - pa) / sides + 270) [clearance_w / 2 - x, -hf + pf] + pf * [cos(a), sin(a)] ],
|
||||
reflection = reverse([for(pt = fillet) [p - pt.x, pt.y] ]) // reflect for trailing edge
|
||||
) concat(fillet, [ [root_w / 2, -hw / 2], [p / 2 - crest_w / 2, ha], [p / 2 + crest_w / 2, ha], [p - root_w / 2, -hw / 2] ], reflection);
|
||||
|
||||
module involute_rack_profile(m, z, w, pa = 20, clearance = undef) { //! Calculate rack profile given module, number of teeth and pressure angle
|
||||
p = PI * m; // Pitch
|
||||
hf = 1.25 * m; // Dedendum
|
||||
tooth = involute_rack_tooth_profile(m, pa, clearance);
|
||||
teeth = [for(i = [0 : z - 1], pt = tooth) [pt.x + i * p, pt.y] ];
|
||||
|
||||
polygon(concat([[0, -w], [0, -hf]], teeth, [[z * p, -hf ], [z * p, -w]])); // Add the corners
|
||||
}
|
||||
|
||||
function involute_worm_profile(m, pa = 20, clearance = undef) = //! Calculate worm profile suitable for passing to thread()
|
||||
let(tooth = involute_rack_tooth_profile(m),
|
||||
pitch = PI * m,
|
||||
y_min = min([for(p = tooth) p.y])
|
||||
) [for(p = tooth) [p.x - pitch / 2, p.y - y_min, 0]]; // Offset to be positive in y, centred in x and add 0 z ordintate
|
||||
55
utils/horiholes.scad
Normal file
55
utils/horiholes.scad
Normal file
@@ -0,0 +1,55 @@
|
||||
//
|
||||
// NopSCADlib Copyright Chris Palmer 2020
|
||||
// nop.head@gmail.com
|
||||
// hydraraptor.blogspot.com
|
||||
//
|
||||
// This file is part of NopSCADlib.
|
||||
//
|
||||
// NopSCADlib is free software: you can redistribute it and/or modify it under the terms of the
|
||||
// GNU General Public License as published by the Free Software Foundation, either version 3 of
|
||||
// the License, or (at your option) any later version.
|
||||
//
|
||||
// NopSCADlib is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
|
||||
// without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
||||
// See the GNU General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU General Public License along with NopSCADlib.
|
||||
// If not, see <https://www.gnu.org/licenses/>.
|
||||
//
|
||||
|
||||
//
|
||||
//! Utilities for depicting the staircase slicing of horizontal holes made with [`teardrop_plus()`](#teardrops), see <https://hydraraptor.blogspot.com/2020/07/horiholes-2.html>
|
||||
//
|
||||
include <../utils/core/core.scad>
|
||||
|
||||
function teardrop_plus_x(r, y, h) = //! Calculate the ordinate of a compensated teardrop given y and layer height.
|
||||
let(fr = h / 2,
|
||||
hpot = r + fr,
|
||||
x2 = sqr(hpot) - sqr(y),
|
||||
x = x2 > 0 ? sqrt(x2) : 0
|
||||
)
|
||||
max(0,
|
||||
y < hpot / sqrt(2) ? x - fr :
|
||||
y < hpot ? hpot * sqrt(2) - y - fr :
|
||||
0);
|
||||
|
||||
module horihole(r, z, h = 0, center = true) { //! For making horizontal holes that don't need support material and are correct dimensions
|
||||
bot_layer = floor((z - r) / layer_height);
|
||||
top_layer = ceil((z + r) / layer_height);
|
||||
render(convexity = 5)
|
||||
extrude_if(h, center)
|
||||
for(i = [bot_layer : top_layer]) {
|
||||
Z = i * layer_height;
|
||||
y = Z - z + layer_height / 2;
|
||||
x = teardrop_plus_x(r, y, layer_height);
|
||||
if(x > 0)
|
||||
translate([0, y])
|
||||
difference() {
|
||||
square([2 * x + layer_height, layer_height], center = true);
|
||||
|
||||
for(end = [-1, 1])
|
||||
translate([end * (x + layer_height / 2), 0])
|
||||
circle(d = layer_height, $fn = 32);
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -20,7 +20,10 @@
|
||||
//
|
||||
//! Maths utilities for manipulating vectors and matrices.
|
||||
//
|
||||
function sqr(x) = x * x;
|
||||
function sqr(x) = x * x; //! Square x
|
||||
function radians(degrees) = degrees * PI / 180; //! Convert radians to degrees
|
||||
function degrees(radians) = radians * 180 / PI; //! Convert degrees to radians
|
||||
|
||||
|
||||
function translate(v) = let(u = is_list(v) ? len(v) == 2 ? [v.x, v.y, 0] //! Generate a 4x4 translation matrix, ```v``` can be ```[x, y]```, ```[x, y, z]``` or ```z```
|
||||
: v
|
||||
@@ -63,6 +66,12 @@ function rot3_z(a) = //! Generate a 3x3 matrix to rotate around z
|
||||
[ s, c, 0],
|
||||
[ 0, 0, 1] ];
|
||||
|
||||
function rot2_z(a) = //! Generate a 2x2 matrix to rotate around z
|
||||
let(c = cos(a),
|
||||
s = sin(a))
|
||||
[ [ c, -s],
|
||||
[ s, c] ];
|
||||
|
||||
function scale(v) = let(s = is_list(v) ? v : [v, v, v]) //! Generate a 4x4 matrix that scales by ```v```, which can be a vector of xyz factors or a scalar to scale all axes equally
|
||||
[
|
||||
[s.x, 0, 0, 0],
|
||||
|
||||
@@ -26,6 +26,8 @@
|
||||
//! Threads are by default solid, so the male version is wrapped around a cylinder and the female inside a tube. This can be suppressed to just get the helix, for
|
||||
//! example to make a printed pot with a screw top lid.
|
||||
//!
|
||||
//! A left hand thread can be made by using mirror([0,1]).
|
||||
//!
|
||||
//! Threads with a typical 60 degree angle appear too bright with OpenSCAD's primitive lighting model as they face towards the lights more than the top and sides of
|
||||
//! a cylinder. To get around this a colour can be passed to thread that is used to colour the cylinder and then toned down to colour the helix.
|
||||
//!
|
||||
@@ -47,7 +49,7 @@ function thread_profile(h, crest, angle, overlap = 0.1) = //! Create thread prof
|
||||
let(base = crest + 2 * (h + overlap) * tan(angle / 2))
|
||||
[[-base / 2, -overlap, 0], [-crest / 2, h, 0], [crest / 2, h, 0], [base / 2, -overlap, 0]];
|
||||
|
||||
module thread(dia, pitch, length, profile, center = true, top = -1, bot = -1, starts = 1, solid = true, female = false, colour = undef) { //! Create male or femail thread, ends can be tapered, chamfered or square
|
||||
module thread(dia, pitch, length, profile, center = true, top = -1, bot = -1, starts = 1, solid = true, female = false, colour = undef) { //! Create male or female thread, ends can be tapered, chamfered or square
|
||||
//
|
||||
// Apply colour if defined
|
||||
//
|
||||
@@ -61,10 +63,12 @@ module thread(dia, pitch, length, profile, center = true, top = -1, bot = -1, st
|
||||
// Extract some properties from the profile, perhaps they should be stored in it.
|
||||
//
|
||||
h = max([for(p = sprofile) p.y]);
|
||||
maxx = max([for(p = sprofile) p.x]);
|
||||
minx = min([for(p = sprofile) p.x]);
|
||||
crest_xmax = max([for(p = sprofile) if(p.x != maxx) p.x]);
|
||||
crest_xmin = min([for(p = sprofile) if(p.x != minx) p.x]);
|
||||
xs = [for(p = sprofile) p.x];
|
||||
maxx = max(xs);
|
||||
minx = min(xs);
|
||||
crest_xs = [for(p = sprofile) if(p.y == h) p.x];
|
||||
crest_xmax = max(crest_xs);
|
||||
crest_xmin = min(crest_xs);
|
||||
//
|
||||
// If the ends don't taper we need an extra half turn past the ends to be cropped horizontally.
|
||||
//
|
||||
@@ -129,11 +133,13 @@ module thread(dia, pitch, length, profile, center = true, top = -1, bot = -1, st
|
||||
render() intersection() {
|
||||
polyhedron(points, ends_faces);
|
||||
|
||||
len = length - 2 * eps;
|
||||
shorten = !is_undef(colour);
|
||||
len = shorten ? length - 2 * eps : length;
|
||||
offset = shorten ? eps : 0;
|
||||
rotate_extrude()
|
||||
if(female) {
|
||||
difference() {
|
||||
translate([0, eps])
|
||||
translate([0, offset])
|
||||
square([r + h + overlap, len]);
|
||||
|
||||
if(top_chamfer_h)
|
||||
@@ -146,7 +152,7 @@ module thread(dia, pitch, length, profile, center = true, top = -1, bot = -1, st
|
||||
else
|
||||
difference() {
|
||||
hull() {
|
||||
translate([0, eps])
|
||||
translate([0, offset])
|
||||
square([r, len]);
|
||||
|
||||
translate([0, bot_chamfer_h])
|
||||
|
||||
@@ -16,11 +16,12 @@
|
||||
// You should have received a copy of the GNU General Public License along with NopSCADlib.
|
||||
// If not, see <https://www.gnu.org/licenses/>.
|
||||
//
|
||||
BB624 = ["624", 4, 13, 5, "blue", 1.2, 1.2]; // 624 ball bearing for idlers
|
||||
BB608 = ["608", 8, 22, 7, "OrangeRed", 1.4, 2.0]; // 608 bearings for wades
|
||||
BB6200 = ["6200", 10, 30, 9, "black", 2.3, 3.6]; // 6200 bearings for KP pillow blocks
|
||||
BB6201 = ["6201", 12, 32, 10, "black", 2.4, 3.7]; // 6201 bearings for KP pillow blocks
|
||||
BB6808 = ["6808", 40, 52, 7, "black", 1.5, 1.6];
|
||||
ball_bearings = [BB624, BB608, BB6200, BB6201, BB6808];
|
||||
BBSMR95 = ["SMR95", 5, 9, 2.5, "silver", 0.5, 0.7]; // SMR95 ball bearing for FlexDrive extruder
|
||||
BB624 = ["624", 4, 13, 5, "blue", 1.2, 1.2]; // 624 ball bearing for idlers
|
||||
BB608 = ["608", 8, 22, 7, "OrangeRed", 1.4, 2.0]; // 608 bearings for wades
|
||||
BB6200 = ["6200", 10, 30, 9, "black", 2.3, 3.6]; // 6200 bearings for KP pillow blocks
|
||||
BB6201 = ["6201", 12, 32, 10, "black", 2.4, 3.7]; // 6201 bearings for KP pillow blocks
|
||||
BB6808 = ["6808", 40, 52, 7, "black", 1.5, 1.6];
|
||||
ball_bearings = [BBSMR95, BB624, BB608, BB6200, BB6201, BB6808];
|
||||
|
||||
use <ball_bearing.scad>
|
||||
|
||||
@@ -23,10 +23,38 @@
|
||||
include <../utils/core/core.scad>
|
||||
use <pcb.scad>
|
||||
|
||||
function camera_pcb(type) = type[2]; //! The PCB part of the camera
|
||||
function camera_lens_offset(type) = type[3]; //! Offset of the lens center from the PCB centre
|
||||
function camera_lens(type) = type[4]; //! Stack of lens parts, can be round, rectanular or rounded rectangular, with optional tapered aperture
|
||||
function camera_connector(type) = type[5]; //! The flex connector block for the camera itself
|
||||
function camera_pcb(type) = type[2]; //! The PCB part of the camera
|
||||
function camera_lens_offset(type) = type[3]; //! Offset of the lens center from the PCB centre
|
||||
function camera_lens(type) = type[4]; //! Stack of lens parts, can be round, rectanular or rounded rectangular, with optional tapered aperture
|
||||
function camera_connector_pos(type) = type[5]; //! The flex connector block for the camera itself's position
|
||||
function camera_connector_size(type)= type[6]; //! The flex connector block for the camera itself's size
|
||||
|
||||
module camera_lens(type, offset = 0) //! Draw the lens stack, with optional offset for making a clearance hole
|
||||
color(grey(20))
|
||||
translate(camera_lens_offset(type))
|
||||
for(p = camera_lens(type)) {
|
||||
size = p[0];
|
||||
r = p[1] + offset;
|
||||
app = p[2];
|
||||
if(size.x)
|
||||
rounded_rectangle(size + [2 * offset, 2 * offset, round_to_layer(offset)], r, center = false);
|
||||
else
|
||||
translate_z(size.y)
|
||||
rotate_extrude()
|
||||
difference() {
|
||||
square([r, size.z + round_to_layer(offset)]);
|
||||
|
||||
if(app)
|
||||
translate([0, size.z])
|
||||
hull() {
|
||||
translate([0, -eps])
|
||||
square([app.y, eps * 2]);
|
||||
|
||||
translate([0, -app.z])
|
||||
square([app.x, app.z]);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
module camera(type) { //! Draw specified PCB camera
|
||||
vitamin(str("camera(", type[0], "): ", type[1]));
|
||||
@@ -36,36 +64,14 @@ module camera(type) { //! Draw specified PCB camera
|
||||
pcb(pcb);
|
||||
|
||||
translate_z(pcb_thickness(pcb)) {
|
||||
color(grey(20))
|
||||
translate(camera_lens_offset(type))
|
||||
for(p = camera_lens(type)) {
|
||||
size = p[0];
|
||||
r = p[1];
|
||||
app = p[2];
|
||||
if(size.x)
|
||||
rounded_rectangle(size, r, center = false);
|
||||
else
|
||||
translate_z(size.y)
|
||||
rotate_extrude()
|
||||
difference() {
|
||||
square([r, size.z]);
|
||||
camera_lens(type);
|
||||
|
||||
if(app)
|
||||
translate([0, size.z])
|
||||
hull() {
|
||||
translate([0, -eps])
|
||||
square([app.y, eps * 2]);
|
||||
|
||||
translate([0, -app.z])
|
||||
square([app.x, app.z]);
|
||||
}
|
||||
}
|
||||
}
|
||||
conn = camera_connector(type);
|
||||
conn = camera_connector_size(type);
|
||||
if(conn) {
|
||||
pos = camera_connector_pos(type);
|
||||
color(grey(20))
|
||||
translate(conn[0])
|
||||
rounded_rectangle(conn[1], 0.5, center = false);
|
||||
translate(pos)
|
||||
rounded_rectangle(conn, 0.5, center = false);
|
||||
|
||||
flex = [5, 0.1];
|
||||
color("orange")
|
||||
@@ -74,8 +80,8 @@ module camera(type) { //! Draw specified PCB camera
|
||||
translate(camera_lens_offset(type) + [0, camera_lens(type)[0][0].y / 2])
|
||||
cube([flex.x, eps, flex.y], center = true);
|
||||
|
||||
translate_z(conn[1].z - flex.y)
|
||||
translate(conn[0] - [0, conn[1].y / 2])
|
||||
translate_z(conn.z - flex.y)
|
||||
translate([camera_lens_offset(type).x, pos.y] - [0, conn.y / 2])
|
||||
cube([flex.x, eps, flex.y], center = true);
|
||||
}
|
||||
}
|
||||
|
||||
@@ -22,7 +22,7 @@ rpi_camera_v1_pcb = ["", "", 25, 24, 1, 0, 2.1, 0, "green", false, [[2, -2], [-
|
||||
[
|
||||
[12, 3.25, 0, "-flat_flex", true],
|
||||
[-4.5, -5, 0, "smd_led", LED0603, "red"],
|
||||
[-5.5, -4, 0, "smd_res", RES0603, "10K"],
|
||||
[-5.5, -4, 0, "smd_res", RES0603, "1K2"],
|
||||
],
|
||||
[]];
|
||||
|
||||
@@ -32,7 +32,22 @@ rpi_camera_v1 = ["rpi_camera_v1", "Raspberry Pi camera V1", rpi_camera_v1_pcb, [
|
||||
[[0, 0, 4], 7.5 / 2],
|
||||
[[0, 0, 5], 5.5 / 2, [1.5/2, 2/2, 0.5]],
|
||||
],
|
||||
[[0, 12 - 1.5 - 2.5], [8, 5, 1]]
|
||||
[0, 12 - 1.5 - 2.5], [8, 5, 1]
|
||||
];
|
||||
|
||||
rpi_camera_v2_pcb = ["", "", 25, 23.862, 1, 2, 2.2, 0, "green", false, [[2, -2], [-2, -2], [2, -14.5], [-2, -14.5]],
|
||||
[
|
||||
[12.5, 2.75, 0, "-flat_flex", true],
|
||||
],
|
||||
[]];
|
||||
|
||||
rpi_camera_v2 = ["rpi_camera_v2", "Raspberry Pi camera V2", rpi_camera_v2_pcb, [0, 9.6 - 12],
|
||||
[
|
||||
[[8.5, 8.5, 3], 0],
|
||||
[[0, 0, 4], 7.5 / 2],
|
||||
[[0, 0, 5], 5.5 / 2, [1.5/2, 2/2, 0.5]],
|
||||
],
|
||||
[-13.8 + 12.5, 23.862 / 2 - 4.7], [8.5, 4, 1]
|
||||
];
|
||||
|
||||
rpi_camera_pcb = ["", "", 36, 36, 1.6, 0, 3.2, 0, "green", false, [[3.5, -3.5], [-3.5, -3.5], [3.5, 3.5], [-3.5, 3.5]],
|
||||
@@ -50,9 +65,9 @@ rpi_camera = ["rpi_camera", "Raspberry Pi focusable camera", rpi_camera_pcb, [0,
|
||||
[[0, 0, 12], 6],
|
||||
[[0, 11, 4.3], 14 / 2, [8/2, 11/2, 1]],
|
||||
],
|
||||
[[0, 18 - 1.5 - 2.5], [8, 5, 1]]
|
||||
[0, 18 - 1.5 - 2.5], [8, 5, 1.6]
|
||||
];
|
||||
|
||||
cameras = [rpi_camera_v1, rpi_camera];
|
||||
cameras = [rpi_camera_v1, rpi_camera, rpi_camera_v2];
|
||||
|
||||
use <camera.scad>
|
||||
|
||||
@@ -638,14 +638,13 @@ module flex(cutout = false) { //! Draw flexistrip connector
|
||||
|
||||
translate([0, -w / 2 + slot_offset + slot_w / 2])
|
||||
square([slot_l, slot_w], center = true);
|
||||
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
small_ff = [[11.8, 0.9], [17, 1.4, 1.2], [12, 1.6, 1.2], [16, 1.1, 1.2]];
|
||||
large_ff = [[16, 1.25], [22, 1.5, 2.25],[16, 4.0, 2.5], [21, 0, 2.5]];
|
||||
large_ff = [[16, 1.25], [22, 1.5, 2.5], [16, 4.0, 2.5], [21, 0, 2.5]];
|
||||
|
||||
function ff_slot(type) = type[0]; //! Flat flex slot size
|
||||
function ff_latch(type) = type[1]; //! Flat flex latch size
|
||||
@@ -683,8 +682,8 @@ module flat_flex(type, cutout = false) { //! Draw flat flexistrip connector as u
|
||||
}
|
||||
|
||||
color(grey(80))
|
||||
translate([-back.x / 2, -w / 2 + back.y])
|
||||
cube([back.x, mid.y, mid.z - eps]);
|
||||
translate([-back.x / 2, -w / 2 + back.y + eps])
|
||||
cube([back.x, mid.y - 2 * eps, mid.z - eps]);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
@@ -50,7 +50,7 @@ module mouse_hole(cable, h = 100, teardrop = false) { //! A mouse hole to allow
|
||||
r = wire_hole_radius(cable);
|
||||
|
||||
if(teardrop)
|
||||
vertical_tearslot(r = r, l = 2 * r, h = h);
|
||||
vertical_tearslot(r = r, l = 2 * r, h = h, plus = true);
|
||||
else
|
||||
rotate(90)
|
||||
slot(r, 2 * r, h = h);
|
||||
|
||||
Reference in New Issue
Block a user