mcopy/scad/common.scad

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echo("common.scad - rounded_cube()");
module rounded_cube (cube_arr = [1, 1, 1], d = 0, center = false) {
off_x = 0;
off_y = 0;
r = d/2;
union () {
cube([cube_arr[0] - d, cube_arr[1], cube_arr[2]], center = center);
cube([cube_arr[0], cube_arr[1] - d, cube_arr[2]], center = center);
translate ([1 * (cube_arr[0] / 2) - r , 1 * (cube_arr[1] / 2)- r, 0]) cylinder(r = r, h = cube_arr[2], center = center);
translate ([-1 * (cube_arr[0] / 2) + r, -1 * (cube_arr[1] / 2) + r, 0]) cylinder(r = r, h = cube_arr[2], center = center);
translate ([1 * (cube_arr[0] / 2) - r, -1 * (cube_arr[1] / 2) + r, 0]) cylinder(r = r, h = cube_arr[2], center = center);
translate ([-1 * (cube_arr[0] / 2) + r, 1 * (cube_arr[1] / 2)- r, 0]) cylinder(r = r, h = cube_arr[2], center = center);
}
}
echo("common.scad - trap_cube()");
module trap_cube(height = 19, top_x = 30, top_y = 34, bottom_x = 45, bottom_y = 65, wall_thickness = 2) {
difference(){
hull(){
translate([0,0,height])
cube([top_x, top_y, 0.1], center=true);
cube([bottom_x, bottom_y, 0.1], center=true);
}
hull(){
translate([0,0,height])
cube([top_x - wall_thickness, top_y - wall_thickness, 0.1], center=true);
cube([bottom_x - wall_thickness, bottom_y - wall_thickness, 0.1], center=true);
}
}
}
echo("common.scad - R()");
function R (diameter) = diameter / 2.0;
echo("common.scad - m3_nut");
module m3_nut (H = 5) {
cylinder(r=R(6.6), h=H, center=true, $fn=6);
}
module opto_endstop(){
difference(){
union(){
// base PCB
color("green") cube([33.0,1.6,10.5]);
// add the switch module
translate([8.4,1.6,10.5/2-6.4/2]) optoswitch();
// connector
translate([0.2,-7,0]) color("white") cube([5.8,7,10.5]);
// led
translate([3.5,1.6,10.5/2-1.5/2]) color("red") cube([2,0.7,1.5]);
}
translate([8.4,0,10.5/2-6.4/2]) {
for ( hole = [2.75,24.5-2.75] ){
rotate([90,0,0]) translate([hole,6.4/2,-4]) cylinder(r=1.5, h=4.5,$fn=40);
}
}
}
}
// switch module
module optoswitch() {
difference(){
union (){
color("gray") cube([24.5,3.5,6.4]);
color("gray")translate([6.63,0,0]) cube([4.45,11.3,6.3]);
color("gray")translate([13.63,0,0]) cube([4.45,11.3,6.3]);
}
for ( hole = [2.75,24.5-2.75] ){
rotate([90,0,0]) translate([hole,6.4/2,-4]) cylinder(r=1.5, h=4.5,$fn=40);
}
}
2022-07-14 03:04:00 +00:00
}
module hex (diag = 10, h = 1) {
cylinder(r = diag / 2, h = h, center = true, $fn = 6);
}