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Code Issues Releases Wiki Activity

Wades block made a bit stronger and now has a socket for the PTFE tube.

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This version used on later kits.
This commit is contained in:
Chris Palmer
2016-01-09 19:35:05 +00:00
parent 4a66d04ba5
commit 3d8160cf69
4 changed files with 10076 additions and 19251 deletions
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dibond/render/wades_block.png
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dibond/stls/printed/wades_extruder.stl
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dibond/stls/wades_block.stl
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scad/wade.scad
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@@ -15,11 +15,6 @@ use <vitamins/jhead_hot_end.scad>
spring = false; // use two nuts or one nut and a spring
module b608(h = 7) {
cylinder(r = 11.01, h = h);
}
screw_depth = 5;
motor_y = 28;
@@ -37,6 +32,7 @@ mount_pitch = 25;
filament_x = 75;
filament_z = 13;
feed_tube_socket = 4;
extension = max(0, nozzle_length - hot_end_length(hot_end));
extension_width = 30;
@@ -56,16 +52,21 @@ pscrew_z = [filament_z - 6.5, filament_z + 6.5];
driven_x = 70;
driven_y = 31.5;
bearing_housing_depth = 24 + 2 * filament_width;
bearing = BB608;
bearing_rad = ball_bearing_diameter(bearing) / 2;
socket_rad = bearing_rad; // make it a tight fit
socket_cr = corrected_radius(socket_rad); // actual radius
echo(socket_cr=socket_cr*2);
bearing_housing_x = 57;
bearing_housing_x2 = driven_x + socket_cr + 2 * filament_width;
bearing_housing_depth = bearing_housing_x2 - bearing_housing_x;
bearing_housing_bulge = driven_x - bearing_housing_x + 1;
pscrew_length = 50;
pscrew_x = bearing_housing_x + pscrew_length;
clamp_depth = hot_end_inset(hot_end) - 1;
clamp_width = 2 * (hot_end_screw_pitch(hot_end) + max(screw_clearance_radius(M3_cap_screw) + min_wall, clamp_depth / 2));
clamp_height = width - filament_z - 0.5;
function extruder_connector_offset() = [-filament_x + motor_x, filament_z - thickness, motor_y] + d_motor_connector_offset(NEMA17);
function extruder_connector_offset() = [-filament_x + motor_x, filament_z - thickness, motor_y] + d_motor_connector_offset();
module keyhole(r, h, l) {
R = r + layer_height / 4;
@@ -113,6 +114,13 @@ module wades_block_stl() {
translate([bearing_housing_x, 0, 0])
cube([bearing_housing_depth, height, width]); // bearing housing
translate([driven_x + 6, driven_y, 0])
difference() {
cylinder(r = bearing_housing_bulge + 6, h = width); // bulge to make it stronger
translate([0, -25, -1])
cube([50, 50, width + 2]);
}
translate([80,1.5,0]) // fillet
cube([11,11, width]);
@@ -131,7 +139,11 @@ module wades_block_stl() {
translate([filament_x, 20, filament_z])
rotate([90,0,0])
teardrop(h = 70, r=4/2, center=true); // filament
teardrop_plus(h = 70, r=3.5/2, center=true); // filament
translate([filament_x, height, filament_z])
rotate([90,0,0])
teardrop_plus(h = feed_tube_socket * 2, r = tubing_od(PF7) / 2, center = true); // feed tube socket
// mounting holes
for(side = [-1, 1])
@@ -197,22 +209,23 @@ module wades_block_stl() {
translate([driven_x, driven_y, 7 + layer_height + eta])
poly_cylinder(r = M8_clearance_radius + 0.25, h = 30);
translate([driven_x + 2, driven_y - 5, filament_z + 4 - eta])
cube([10, 10, layer_height + eta]); // support bridge
translate([driven_x + 1.9, driven_y - 5, filament_z + 4 ])
cube([10, 10, layer_height]); // support bridge
}
//
// Sockets for bearings
//
translate([driven_x, driven_y, width - 7]) b608(8); // top bearing socket
translate([filament_x + 8, driven_y, filament_z - 4]) b608(8); // clearance for idler
translate([driven_x, driven_y, -1 + eta]) b608(8); // bottom bearing socket
translate([driven_x, driven_y, width - 7]) poly_cylinder(r = socket_rad, h = 8); // top bearing socket
translate([filament_x + 8, driven_y, filament_z - 4]) cylinder(r = bearing_rad, h = 8); // clearance for idler
translate([driven_x, driven_y, -1 + eta]) poly_cylinder(r = socket_rad, h = 8); // bottom bearing socket
//
// Hole for hot end
//
translate([filament_x, -extension + eta, filament_z])
rotate([90,0,0]) {
if(hot_end_groove_mount(hot_end)) assign(relief = 0.5) {
if(hot_end_groove_mount(hot_end)) {
relief = 0.5;
translate([0, 0, -insulator_depth + jhead_groove_offset() / 2 + eta]) // slot for the flange
keyhole(insulator / 2, jhead_groove_offset(), width - filament_z);
@@ -226,12 +239,12 @@ module wades_block_stl() {
rotate([0, 0, i * 120 + jhead_screw_angle])
translate([jhead_screw_pitch, 0, 0])
rotate([0, 0, -i * 120 - jhead_screw_angle]) {
w = nut_flat_radius(screw_nut(jhead_screw));
teardrop_plus(r = screw_clearance_radius(jhead_screw), h = jhead_screw_length * 2, center = true);
translate([0, 0, -base_thickness - extension - jhead_nut_slot / 2]) {
rotate([0, 0, [0, 30, 30][i]])
nut_trap(0, nut_radius(screw_nut(jhead_screw)), jhead_nut_slot / 2, horizontal = true);
assign(w = nut_flat_radius(screw_nut(jhead_screw)))
rotate([0, 0, [-90 ,0, 180][i]])
translate([-w, 0, -jhead_nut_slot / 2])
cube([w * 2, 100, jhead_nut_slot], center = false);
@@ -270,12 +283,6 @@ module wades_gear_spacer_stl() {
}
}
bfbext=false;
function extruder_connector_height() = motor_y - d_motor_bracket_offset(NEMA17);
module wades_big_gear_stl() {
stl("wades_big_gear");
color(wades_big_gear_color) difference() {
@@ -351,7 +358,7 @@ module wade_idler_assembly() {
translate([0, 0, idler_height - 2])
rotate([90, 0, 0]) {
rod(d = 8, l = idler_axel_length);
ball_bearing(BB608);
ball_bearing(bearing);
}
}
@@ -368,7 +375,7 @@ module extruder_motor_assembly(show_connector = true, exploded = exploded) {
small_gear_assembly();
if(show_connector)
d_motor_bracket_assembly(NEMA17);
d_motor_bracket_assembly();
}
end("extruder_motor_assembly");
}
@@ -426,11 +433,11 @@ module wades_assembly(show_connector = true, show_drive = true) {
// hobbed bolt and gear
translate([driven_x, driven_y, 0]) {
translate([0, 0, width - BB608[2] / 2 + (!show_drive ? exploded * 20 : 0)])
ball_bearing(BB608);
translate([0, 0, width - ball_bearing_width(bearing) / 2 + (!show_drive ? exploded * 20 : 0)])
ball_bearing(bearing);
translate([0, 0, BB608[2] / 2 - (!show_drive ? exploded * 20 : 0)])
ball_bearing(BB608);
translate([0, 0, ball_bearing_width(bearing) / 2 - (!show_drive ? exploded * 20 : 0)])
ball_bearing(bearing);
if(show_drive) {
@@ -489,7 +496,8 @@ module wades_assembly(show_connector = true, show_drive = true) {
screw(M3_cap_screw, 30);
else
translate([filament_x, -extension, filament_z])
for(i = [0:2]) assign(a = i * 120 - jhead_screw_angle)
for(i = [0:2]) {
a = i * 120 - jhead_screw_angle;
rotate([90, a, 0]) {
translate([jhead_screw_pitch, 0, 0])
washer(jhead_washer)
@@ -503,17 +511,18 @@ module wades_assembly(show_connector = true, show_drive = true) {
rotate([0, 0, [0, 30, 30][i]])
nut(screw_nut(jhead_screw));
}
}
end("extruder_assembly");
}
module wades_extruder_stl() {
difference() {
!difference() {
wades_block_stl();
*translate([0, driven_y, -1])
cube(100);
cube([100,30,100]);
}
translate([96, driven_y + 1, 0]) rotate([0,0,90]) wades_idler_block_stl();
translate([97, driven_y + 1, 0]) rotate([0,0,90]) wades_idler_block_stl();
translate([motor_max, motor_y, 0]) wades_gear_spacer_stl();
}