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Model parts #50

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ede1998 merged 5 commits from model-parts into main 2026-08-29 23:13:54 +02:00
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1 changed files with 248 additions and 31 deletions
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model/common.scad
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include <BOSL2/std.scad>
BASE_MODEL_SCALE = [1.1, 1, 1.1];
BASE_MODEL_TRANSLATE = [-0.4, 0, 16.978];
EPS = 0.01;
$fn = 50;
module main_display(){
// Outer dimensions, height currently unknown
cube([55.04, 89.3, 10]);
module pin_header(cols = 4, rows = 1, anchor = BOTTOM, spin = 0, orient = UP) {
// Standard pin header dimensions (in mm)
base_height = 2.54; // Height of the plastic base
pin_width = 0.64; // Width/thickness of the square pin
pin_length = 6.0; // Length of pin sticking up
pitch = 2.54;
// 1. The Plastic Base is the Parent
// It directly receives your anchor, spin, and orient arguments.
color("darkgrey")
cuboid([cols * pitch, rows * pitch, base_height], anchor=anchor, spin=spin, orient=orient) {
// 2. Metal Pins are the Children
// Placed relative to the center of the plastic base
color("silver")
xcopies(spacing=pitch, n=cols) {
ycopies(spacing=pitch, n=rows) {
up(base_height / 2)
cuboid([pin_width, pin_width, pin_length], anchor=BOTTOM);
}
}
// Allows attaching other objects to this header if needed
children();
}
}
module pad(){
// A button has 4.2 x 6 mm -> At least ~20x20 are required for the PCB
cube([20, 20, 10]);
module main_display(pin_header = false) {
// Outer dimensions
width = 55.04;
length = 89.35;
height = 2.7;
display_height = 3;
display_length = 77.6;
display_inset = 5.7;
sd_width = 26.6;
sd_height = 3;
sd_length = 16.6;
sd_inset = 29.4;
hole_diameter = 3;
hole_inset = 1.5;
difference() {
cuboid([length, width, height]) {
position(TOP + RIGHT)
left(display_inset)
color("black")
cuboid([display_length, width, display_height], anchor=BOTTOM + RIGHT);
position(BOTTOM + RIGHT + FRONT)
left(sd_inset)
cuboid([sd_width, sd_length, sd_height], anchor=TOP + RIGHT + FRONT);
position(TOP + LEFT)
pin_header(14, spin=90, anchor=BOTTOM + BACK);
// pin_header();
}
xcopies(length - (2 * hole_inset) - hole_diameter) {
ycopies(width - (2 * hole_inset) - hole_diameter) {
zcyl(d=hole_diameter, h=height + EPS);
}
}
}
}
module small_display_below_main()
{
// https://de.aliexpress.com/item/1005003753680706.html
cube([45.8, 20, 11.3]);
// old i2c variant:
//cube([43.5, 19.44, 4.5]);
// initial dimension ideas
// cube([38,16,4]);
// translate([150,0,0]) cube([22,5.5,4]);
module pad() {
// A button has 4.2 x 6 mm -> At least ~20x20 are required for the PCB
cube([20, 20, 10]);
}
module tertiary_display()
{
// https://de.aliexpress.com/item/1005006034531826.html
cube([80, 36, 10]);
module secondary_display(pin_header = false) {
// https://de.aliexpress.com/item/1005003753680706.html
length = 45.8;
width = 20;
height = 3.7;
hole_diameter = 2;
hole_inset = 1.5;
difference() {
cuboid([length, width, height]) {
if (pin_header)
position(LEFT + TOP)
pin_header(7, spin=90, anchor=BACK + BOTTOM);
}
right(length / 2 - hole_inset) {
ycopies(width - (2 * hole_inset) - hole_diameter) {
zcyl(d=hole_diameter, h=height + EPS, anchor=RIGHT);
}
}
}
}
module battery() {
// 18650
rotate([0,90,0]) cylinder(d=18, h=65);
module tertiary_display() {
// https://de.aliexpress.com/item/1005006034531826.html
cube([80, 36, 10]);
}
module microcontroller() {
// width 32 including USB-C port
length = 91.5;
height = 20;
battery_length = 65;
delta = length - battery_length;
cube([length, 32, height]);
translate([delta / 2,16, 15]) battery();
module battery(anchor = BOTTOM) {
// 18650
rotate([0, 90, 0]) cylinder(d=18, h=65, anchor=anchor);
}
/// USB-C port and switch not 100% dimensionally accurate, take care!
module micro_controller(battery_holder = false, battery = false) {
pcb_length = 91.5;
pcb_height = 6.5; // including components, highest point: jst connector, followed by uC
pcb_height_no_components = 1.1;
pcb_width = 28.8;
hole_diameter = 2.5;
hole_inset = 1;
usb_protrusion = 1.7;
usb_width = 9;
usb_inset_from_pcb_end = 5;
power_switch_protrusion = 2.1;
power_switch_inset_from_pcb_end = 8.1;
power_switch_width = 4;
battery_holder_height = 15;
battery_holder_width = 21;
battery_holder_length = 77.3;
battery_length = 65;
battery_protrusion = 4.5;
difference() {
cuboid([pcb_length, pcb_width, pcb_height], rounding=2, edges="Z") {
if (battery_holder)
position(TOP)
cube([battery_holder_length, battery_holder_width, battery_holder_height], anchor=BOTTOM + CENTER) {
if (battery)
position(TOP)
up(battery_protrusion)
battery(anchor=CENTER + LEFT);
}
position(RIGHT + BOTTOM) {
position(FRONT)
left(usb_inset_from_pcb_end)
cube([usb_width, usb_protrusion, pcb_height - pcb_height_no_components], orient=FRONT, anchor=RIGHT + BOTTOM + FRONT);
position(BACK)
left(power_switch_inset_from_pcb_end)
cube([power_switch_width, power_switch_protrusion, pcb_height - pcb_height_no_components], orient=FRONT, anchor=RIGHT + TOP + FRONT);
}
}
xcopies(pcb_length - (2 * hole_inset) - hole_diameter) {
ycopies(pcb_width - (2 * hole_inset) - hole_diameter) {
cyl(d=hole_diameter, h=pcb_height + EPS, orient=UP);
}
}
}
}
module nfc(pin_header = true) {
length = 43;
width = 40.5;
height = 4;
pin_protrusion = 2.2;
hole_diameter = 3;
hole_inset = 6;
x_span = length - (2 * hole_inset) - hole_diameter;
y_span = width - (2 * hole_inset) - hole_diameter;
color("red")
difference() {
cuboid([length, width, height], rounding=2, edges="Z") {
// pin header is lower than highest other component -> in the cube.
if (pin_header)
right(6 - pin_protrusion) // ugly: 6mm is the pin height
position(LEFT + TOP)
yrot(-90)
pin_header(7, spin=90, anchor=FRONT + TOP);
}
move_copies(
[
[x_span / 2, -y_span / 2], // Bottom-Left corner
[-x_span / 2, y_span / 2], // Top-Right corner
]
) {
zcyl(d=hole_diameter, h=height + EPS);
}
}
}
include <BOSL2/std.scad>
module tertiary_display(pin_headers = true) {
pcb_length = 81;
pcb_width = 36.1;
pcb_height = 3.7;
hole_diameter = 2.8;
hole_inset = 1;
display_length = 71.2;
display_width = 24.4;
display_height = 7;
piggy_length = 41.8;
piggy_width = 19.1;
piggy_height = 8.5 - 2.6;
piggy_inset = 6.2;
jumper_protrusion = 6.6;
pin_protrusion = 6.2;
color("green")
difference() {
cuboid([pcb_length, pcb_width, pcb_height]) {
position(TOP)
cuboid([display_length, display_width, display_height], anchor=BOTTOM);
}
xcopies(pcb_length - (2 * hole_inset) - hole_diameter) {
ycopies(pcb_width - (2 * hole_inset) - hole_diameter) {
zcyl(d=hole_diameter, h=pcb_height + 1);
}
}
}
// Replaces position(BOTTOM + BACK + LEFT) so that difference cannot mess with color.
translate([-pcb_length / 2 + piggy_inset, pcb_width / 2, -pcb_height / 2]) {
color("black")
cuboid([piggy_length, piggy_width, piggy_height], anchor=TOP + BACK + LEFT);
if (pin_headers) {
// Replaces position(LEFT + BOTTOM) so that parent child cannot mess with color.
translate([0, -piggy_width / 2, -piggy_height])
right(6 - pin_protrusion)
yrot(-90)
pin_header(4, spin=90, anchor=BACK + TOP);
// Replaces position(RIGHT + BOTTOM) so that parent child cannot mess with color.
translate([piggy_length, -piggy_width / 2, -piggy_height])
left(6 - pin_protrusion)
yrot(90)
back(1.6)
pin_header(2, spin=-90, anchor=BACK + TOP);
// Replaces position(BACK + TOP) so that parent child cannot mess with color.
translate([piggy_length / 2, -EPS, 0])
pin_header(16, anchor=BACK + TOP);
}
}
}