Added LIPO fuel gauge PCB.

Tiny PCBs now shown in a third line.

readme.md

@@ -2461,6 +2461,7 @@ PCBs and perfboard with optional components. The shape can be a rectangle with o
 |   1 | `pcb(EnviroPlus)` |  Enviro+ |
 |   1 | `pcb(ExtruderPCB)` |  Extruder connection PCB |
 |   1 | `pcb(Keyes5p1)` |  Keyes5.1 Arduino Uno expansion board - not shown |
+|   1 | `pcb(LIPO_fuel_gauge)` |  LIPO fuel gauge |
 |   1 | `pcb(MP1584EN)` |  MP1584EN 3A buck converter |
 |   1 | `pcb(MT3608)` |  MT3608 boost converter module |
 |   1 | `pcb(Melzi)` |  Melzi electronics - not shown |
@@ -2487,14 +2488,16 @@ PCBs and perfboard with optional components. The shape can be a rectangle with o
 |   1 | `pcb(RPI0)` |  Raspberry Pi Zero |
 |   8 | `screw(M2_cap_screw, 16)` |  Screw M2 cap x 16mm |
 |   8 | `screw(M2_cap_screw, 20)` |  Screw M2 cap x 20mm |
-|   2 | `screw(M2p5_cap_screw, 20)` |  Screw M2.5 cap x 20mm |
+|   2 | `screw(M2p5_cap_screw, 16)` |  Screw M2.5 cap x 16mm |
+|   8 | `screw(M2p5_cap_screw, 20)` |  Screw M2.5 cap x 20mm |
 |   8 | `screw(M2p5_cap_screw, 25)` |  Screw M2.5 cap x 25mm |
-|   8 | `screw(M2p5_cap_screw, 30)` |  Screw M2.5 cap x 30mm |
-|  12 | `screw(M2p5_pan_screw, 25)` |  Screw M2.5 pan x 25mm |
+|   4 | `screw(M2p5_pan_screw, 20)` |  Screw M2.5 pan x 20mm |
+|   8 | `screw(M2p5_pan_screw, 25)` |  Screw M2.5 pan x 25mm |
 |   8 | `screw(M3_cap_screw, 16)` |  Screw M3 cap x 16mm |
-|   9 | `screw(M3_cap_screw, 30)` |  Screw M3 cap x 30mm |
-|   9 | `screw(M3_cap_screw, 35)` |  Screw M3 cap x 35mm |
+|   4 | `screw(M3_cap_screw, 25)` |  Screw M3 cap x 25mm |
+|  14 | `screw(M3_cap_screw, 30)` |  Screw M3 cap x 30mm |
 |   8 | `screw(M4_cap_screw, 35)` |  Screw M4 cap x 35mm |
+|   1 | `pcb(XIAO)` |  Seeeduino XIAO |
 |   1 | `pcb(TP4056)` |  TP4056 Li-lon Battery charger module |
 |   3 | `terminal_35(2)` |  Terminal block 2 way 3.5mm |
 |   2 | `green_terminal(gt_2p54, 4)` |  Terminal block 4 way 0.1" |
@@ -2513,22 +2516,22 @@ PCBs and perfboard with optional components. The shape can be a rectangle with o
 |   4 | pcb_spacer2070.stl |
 |   4 | pcb_spacer2080.stl |
 |   4 | pcb_spacer2090.stl |
-|   4 | pcb_spacer25120.stl |
-|   4 | pcb_spacer25130.stl |
-|   4 | pcb_spacer25140.stl |
-|   4 | pcb_spacer25150_2.stl |
-|   4 | pcb_spacer25160_2.stl |
-|   4 | pcb_spacer25180.stl |
-|   4 | pcb_spacer25190.stl |
-|   2 | pcb_spacer2580.stl |
-|   4 | pcb_spacer30170.stl |
-|   5 | pcb_spacer30200.stl |
-|   5 | pcb_spacer30210.stl |
-|   4 | pcb_spacer30220.stl |
+|   4 | pcb_spacer25100.stl |
+|   4 | pcb_spacer25110.stl |
+|   4 | pcb_spacer25120_2.stl |
+|   4 | pcb_spacer25130_2.stl |
+|   4 | pcb_spacer25150.stl |
+|   4 | pcb_spacer25160.stl |
+|   2 | pcb_spacer2550.stl |
+|   4 | pcb_spacer2590.stl |
+|   4 | pcb_spacer30140.stl |
+|   5 | pcb_spacer30170.stl |
+|   5 | pcb_spacer30180.stl |
+|   4 | pcb_spacer30190.stl |
 |   4 | pcb_spacer3050.stl |
 |   4 | pcb_spacer3060.stl |
-|   4 | pcb_spacer40230.stl |
-|   4 | pcb_spacer40240.stl |
+|   4 | pcb_spacer40200.stl |
+|   4 | pcb_spacer40210.stl |
 
 
 <a href="#top">Top</a>
@@ -3385,6 +3388,8 @@ Surface mount components for PCBs.
 ### Properties
 | Function | Description |
 |:--- |:--- |
+| `smd_cap_end_cap(type)` | End cap width |
+| `smd_cap_size(type)` | Body length, width |
 | `smd_led_lens(type)` | Lens length width and height |
 | `smd_led_size(type)` | Body length, width and height |
 | `smd_res_end_cap(type)` | End cap width |
@@ -3401,6 +3406,7 @@ Surface mount components for PCBs.
 ### Modules
 | Module | Description |
 |:--- |:--- |
+| `smd_capacitor(type, height)` | Draw an SMD capacitor with specified height |
 | `smd_led(type, colour, cutout)` | Draw an SMD LED with specified `colour` |
 | `smd_resistor(type, value)` | Draw an SMD resistor with specified value |
 
@@ -3411,6 +3417,9 @@ Surface mount components for PCBs.
 | ---:|:--- |:---|
 |   1 | `smd_led(LED0603, green)` |  SMD LED 0603 green |
 |   1 | `smd_led(LED0805, blue)` |  SMD LED 0805 blue |
+|   1 | `smd_capacitor(CAP0603)` |  SMD capacitor 0603 |
+|   1 | `smd_capacitor(CAP0805)` |  SMD capacitor 0805 |
+|   1 | `smd_capacitor(CAP1206)` |  SMD capacitor 1206 |
 |   1 | `smd_resistor(RES0603, 1R0)` |  SMD resistor 0603 1R0 0.1W |
 |   1 | `smd_resistor(RES0805, 10M)` |  SMD resistor 0805 10M 0.125W |
 |   1 | `smd_resistor(RES1206, 100K)` |  SMD resistor 1206 100K 0.25W |

tests/PCBs.scad

@@ -29,6 +29,11 @@ module pcbs() {
             rotate(90)
                 pcb_assembly(pcbs[$i], 5 + $i, 3);
 
+    translate([0, 45])
+        layout([for(p = tiny_pcbs) pcb_length(p)], 3)
+            translate([0, pcb_width(tiny_pcbs[$i]) / 2])
+                 pcb_assembly(tiny_pcbs[$i], 5 + $i, 3);
+
     translate([0, 120])
         layout([for(p = perfboards) pcb_length(p)], 10)
             translate([0, -pcb_width(perfboards[$i]) / 2])

tests/SMDs.scad

@@ -28,6 +28,11 @@ module smds() {
     translate([0, 3])
         layout([for(l = smd_leds) smd_led_size(l).x], 1)
             smd_led(smd_leds[$i], ["green", "blue", "red"][$i % 3]);
+
+    translate([0, 6])
+        layout([for(c = smd_capacitors) smd_cap_size(c).x], 1)
+            let(c = smd_capacitors[$i])
+                smd_capacitor(c, smd_cap_size(c).y * 0.8);
 }
 
 if($preview)

vitamins/pcb.scad

@@ -919,6 +919,7 @@ module pcb_component(comp, cutouts = false, angle = undef) { //! Draw pcb compon
     rotate(comp.z) {
         // Components that have a cutout parameter go in this section
         if(show(comp, "2p54header"))    pin_header(2p54header, comp[4], comp[5], param(6, false), param(8, false), cutouts, colour = param(7, undef));
+        if(show(comp, "2p54joiner"))    pin_header(2p54joiner, comp[4], comp[5], param(6, false), param(8, false), cutouts, colour = param(7, undef));
         if(show(comp, "2p54boxhdr"))    box_header(2p54header, comp[4], comp[5], param(6, false), cutouts);
         if(show(comp, "2p54socket"))    pin_socket(2p54header, comp[4], comp[5], param(6, false), param(7, 0), param(8, false), cutouts, param(9, undef));
         if(show(comp, "chip"))          chip(comp[4], comp[5], comp[6], param(7, grey(30)), cutouts);
@@ -961,9 +962,11 @@ module pcb_component(comp, cutouts = false, angle = undef) { //! Draw pcb compon
             if(show(comp, "D_plug"))        translate_z(d_pcb_offset(comp[4])) d_plug(comp[4], pcb = true);
             if(show(comp, "molex_hdr"))     molex_254(comp[4]);
             if(show(comp, "jst_xh"))        jst_xh_header(jst_xh_header, comp[4], param(5, false), param(6, "white"), param(7, undef));
+            if(show(comp, "jst_ph"))        jst_xh_header(jst_ph_header, comp[4], param(5, false), param(6, "white"), param(7, undef));
             if(show(comp, "potentiometer")) potentiometer(param(4, 5), param(5, 9));
             if(show(comp, "buzzer"))        buzzer(param(4, 9), param(5, 12), param(6, grey(20)));
             if(show(comp, "smd_res"))       smd_resistor(comp[4], comp[5]);
+            if(show(comp, "smd_cap"))       smd_capacitor(comp[4], comp[5]);
         }
     }
 }
@@ -1018,43 +1021,62 @@ module pcb_grid_positions(type) {
 module pcb(type) { //! Draw specified PCB
     grid = pcb_grid(type);
     t = pcb_thickness(type);
+    w = pcb_width(type);
+    l = pcb_length(type);
+
+    module pcb_shape()
+        if(Len(pcb_polygon(type)))
+            polygon(pcb_polygon(type));
+        else
+            rounded_square([l, w], r = pcb_radius(type));
+
     if(pcb_name(type))
         vitamin(str("pcb(", type[0], "): ", pcb_name(type)));
 
     for(part = pcb_accessories(type))
         vitamin(part);
 
-    color(pcb_colour(type)) linear_extrude(t) difference() {
-        if(Len(pcb_polygon(type)))
-            polygon(pcb_polygon(type));
-        else
-            rounded_square([pcb_length(type), pcb_width(type)], r = pcb_radius(type));
+    color(pcb_colour(type))
+        linear_extrude(t)
+            difference() {
+                pcb_shape();
 
-        pcb_hole_positions(type)
-            circle(d = pcb_hole_d(type) + eps);
+                pcb_hole_positions(type)
+                    offset(eps)
+                        circle4n(d = pcb_hole_d(type));
 
-        if(Len(grid))
-            pcb_grid_positions(type)
-                circle(d = 1 + eps);
-    }
+                if(Len(grid))
+                    pcb_grid_positions(type)
+                        circle(d = 1 + eps);
+            }
 
     land = pcb_land_d(type);
+    land_r = Len(land) > 2 ? land[2] : 0;
     hole = pcb_hole_d(type);
-    color("silver")
+    plating = 0.1;
+    color(Len(land) > 3 ? land[3] : silver)
         translate_z(t / 2)
-            pcb_hole_positions(type)
-                if(is_list(land))
-                    linear_extrude(t + 2 * eps, center = true)
-                        difference() {
-                            square(land, center = true);
+            linear_extrude(t + 2 * plating, center = true)
+                difference() {
+                    intersection() {
+                        pcb_hole_positions(type)
+                            if(is_list(land)) {
+                                p = pcb_holes(type)[$i];  // If edge SMT pad then make it rectangular to overlap without gaps
+                                edge = abs(p.x) < eps || abs(p.x - l) < eps || abs(p.y) < eps || abs(p.y - w) < eps;
+                                rounded_square([land.x, land.y], edge ? 0 : land_r);
+                            }
+                            else
+                                circle(d = max(land, 1));
 
-                            circle(d = hole);
-                        }
-                else
-                    tube(or =  max(land, 1) / 2, ir = hole / 2, h = t + 2 * eps);
+                        offset(eps)
+                            pcb_shape();   // Handle half holes on the edge of PCBs such as ESP8266
+                    }
+
+                    pcb_hole_positions(type)
+                        circle4n(d = hole);
+                }
 
     fr4 = pcb_colour(type) != "sienna";
-    plating = 0.15;
     pcb_colour = pcb_colour(type);
     color(pcb_colour == "green" ? silver : pcb_colour == "sienna" ? copper : gold)
         translate_z(-plating)

vitamins/pcbs.scad

@@ -749,7 +749,56 @@ ESP_01 = [
     [] // accessories
 ];
 
-pcbs = [MP1584EN, TP4056, ESP_01, RAMPSEndstop, MT3608, PI_IO, ExtruderPCB, ZC_A0591, RPI0, EnviroPlus, ArduinoUno3, ArduinoLeonardo, WD2002SJ, RPI3, RPI4, BTT_SKR_MINI_E3_V2_0, BTT_SKR_E3_TURBO, BTT_SKR_V1_4_TURBO, DuetE, Duex5];
+XIAO = [
+    "XIAO", "Seeeduino XIAO",
+    21, 18, 1.2, // Size
+    1.5, // corner radius
+    0.8, // mounting hole diameter
+    [2, 2.6, 1- eps, gold], // pad around mounting hole
+    grey(25), // color
+    false, // true if parts should be separate BOM items
+    [for(x = [0:6], y = [-1,1]) [x * 2.54 + 2.71, y * 3 * 2.54 + 9], // Inboard hole positions
+     for(x = [0:6], y = [-1,1]) [x * 2.54 + 2.71, y * 9 + 9]],       // Hole positions on the edge, pad overlaps the inboard holes
+    [ // components
+        [7.6, 9, 0, "block", 12.3, 12, 2.41, silver], // can
+        [21 + 1.76 - 7.35 / 2, 9, 0, "usb_C"],
+    ],
+    [] // accessories
+];
+
+LIPO_fuel_gauge = [
+    "LIPO_fuel_gauge", "LIPO fuel gauge",
+    24, 10, 1.6, // Size
+    0, // corner radius
+    1, // mounting hole diameter
+    1.8, // pad around mounting hole
+    "red", // color
+    false, // true if parts should be separate BOM items
+    [for(x = [0:2], y = [-1,1]) [x * 2.54 + 5.27, y * 1.5 * 2.54 + 5],
+     for(x = 3,     y = [-1,1]) [x * 2.54 + 5.27, y * 0.5 * 2.54 + 5]],
+    [ // components
+        [17, 5, 90, "jst_ph", 2, true],
+        [2.54 + 5.27,  1.5 * 2.54 + 5, 0, "-2p54joiner", 3, 1],
+        [2.54 + 5.27, -1.5 * 2.54 + 5, 0, "-2p54joiner", 3, 1],
+        [3 * 2.54 + 5.27, 5,           0, "-2p54joiner", 1, 2],
+        [6.4 + 1.5, 5, 0, "chip", 3, 2, 0.8],
+        [1.2,  2.5, 90, "smd_res", RES0603, "472"],
+        [2.4,  2.5, 90, "smd_res", RES0603, "472"],
+        [1.2, -2.5, 90, "smd_res", RES0603, "472"],
+        [2.4, -2.5, 90, "smd_res", RES0603, "472"],
+
+        [10.35, -4, -90, "smd_res", RES0603, "181"],
+        [10.35,  4, -90, "smd_res", RES0603, "102"],
+
+        [12.89, 1.5 * 2.54 + 5, 0, "smd_cap", CAP0603, 0.85],
+        [12.89,-1.5 * 2.54 + 5, 0, "smd_cap", CAP0603, 0.85],
+   ],
+    [] // accessories
+];
+
+tiny_pcbs = [XIAO, MP1584EN, TP4056, ESP_01, LIPO_fuel_gauge];
+
+pcbs = [RAMPSEndstop, MT3608, PI_IO, ExtruderPCB, ZC_A0591, RPI0, EnviroPlus, ArduinoUno3, ArduinoLeonardo, WD2002SJ, RPI3, RPI4, BTT_SKR_MINI_E3_V2_0, BTT_SKR_E3_TURBO, BTT_SKR_V1_4_TURBO, DuetE, Duex5];
 
 pcbs_not_shown = [Melzi, Duex2, PSU12V1A, Keyes5p1];
 

vitamins/pin_headers.scad

@@ -17,16 +17,18 @@
 // If not, see <https://www.gnu.org/licenses/>.
 //
 
-//                               p     p     b    p     p       b         s    b                 b    p      r     r
-//                               i     i     e    i     i       a         o    o                 o    i      a     a
-//                               t     n     l    n     n       s         c    x                 x    n
-//                               c           o                  e         k                                  b     h
-//                               h     l     w    w     c                      s                 t    y
-//                                                              c         h    z                             o
+//                               p     p     b    p      p          b     s    b                 b    p      r   r
+//                               i     i     e    i      i          a     o    o                 o    i      a   a
+//                               t     n     l    n      n          s     c    x                 x    n
+//                               c           o                      e     k                                  b   h
+//                               h     l     w    w      c                     s                 t    y
+//                                                                  c     h    z                             o
 //                                                                                                           f
-2p54header    = ["2p54header",   2.54, 11.6, 3.2, 0.66, "gold", grey(20), 8.5, [0,   0,    8.7], 2.4, 0,     0,    0  ];
-jst_xh_header = ["jst_xh_header",2.5,  10,   3.4, 0.64, "gold", grey(90), 0,   [4.9, 5.75, 7],   0.8, 0.525, 0.6,  6.1];
-jst_ph_header = ["jst_ph_header",2.0,   9,   3.4, 0.64, silver, grey(90), 0,   [3.9, 4.5,  6],   0.6, 0.55,  0.25, 4.8];
+2p54header  = ["2p54header",   2.54, 11.6, 3.2, 0.66, gold,   grey(20), 8.5, [0,   0,    8.7], 2.4, 0,     0,    0  ];
+2p54joiner =  ["2p54joiner",   2.54, 6.86, 2.5, 0.66, gold,   grey(20), 8.5, [0,   0,    8.7], 2.4, 0,     0,    0  ]; // Cropped pins for joining PCBs
+
+jst_xh_header = ["jst_xh_header",2.5,  10, 3.4, 0.64, gold,   grey(90), 0,   [4.9, 5.75, 7],   0.8, 0.525, 0.6,  6.1];
+jst_ph_header = ["jst_ph_header",2.0,   9, 3.4, 0.64, silver, grey(90), 0,   [3.9, 4.5,  6],   0.6, 0.55,  0.25, 4.8];
 
 pin_headers = [ 2p54header ];
 

vitamins/smd.scad

@@ -109,3 +109,23 @@ module smd_resistor(type, value) { //! Draw an SMD resistor with specified value
                 resize([(size.x - 2 * cap) * 0.75, size.y / 2])
                     text(value, halign = "center", valign = "center");
 }
+
+function smd_cap_size(type)    = type[1]; //! Body length, width
+function smd_cap_end_cap(type) = type[2]; //! End cap width
+
+module smd_capacitor(type, height) { //! Draw an SMD capacitor with specified height
+    size = smd_cap_size(type);
+    vitamin(str("smd_capacitor(", type[0], "): SMD capacitor ", smd_size(size)));
+
+    cap = smd_cap_end_cap(type);
+
+    t = 0.02;
+    color("tan")
+        translate_z(height / 2)
+            cube([size.x - 2 * cap, size.y - 2 * t, height - 2 * t], center = true);
+
+    color(silver)
+        for(end = [-1, 1])
+            translate([end * (size.x / 2 - cap / 2), 0, height / 2])
+                cube([cap, size.y - 2 * eps, height], center = true);
+}

vitamins/smds.scad

@@ -32,4 +32,10 @@ RES1206 = ["RES1206", [3.1, 1.6, 0.6],  0.5, 1/4];
 
 smd_resistors = [RES0603, RES0805, RES1206];
 
+CAP0603 = ["CAP0603", [1.6, 0.8], 0.3];
+CAP0805 = ["CAP0805", [2.0, 1.2], 0.4];
+CAP1206 = ["CAP1206", [3.1, 1.6], 0.5];
+
+smd_capacitors = [CAP0603, CAP0805, CAP1206];
+
 use <smd.scad>