first commit

2025-08-30 00:10:13 +02:00 · 2012-03-12 01:13:07 +00:00
commit d22174869f
68 changed files with 90115 additions and 0 deletions
--- a/scad/conf/utils.scad
+++ b/scad/conf/utils.scad
@@ -0,0 +1,119 @@
+//
+// Mendel90
+//
+// GNU GPL v2
+// nop.head@gmail.com
+// hydraraptor.blogspot.com
+//
+// Utilities
+//
+include <../utils/bom.scad>
+include <../utils/polyholes.scad>
+include <../utils/teardrops.scad>
+include <../utils/cables.scad>
+
+module slot(h, r, l, center = true)
+    linear_extrude(height = h, convexity = 6, center = center)
+        hull() {
+            translate([l/2,0,0])
+                circle(r = r, center = true);
+            translate([-l/2,0,0])
+                circle(r = r, center = true);
+        }
+
+module nut_trap(screw_r, nut_r, depth, horizontal = false) {
+    union() {
+        if(horizontal) {
+            teardrop_plus(r = screw_r, h = 200, center = true);
+            cylinder(r = nut_r   + layer_height / 4, h = depth * 2, center = true, $fn = 6);
+        }
+        else {
+            poly_cylinder(r = screw_r, h = 200, center = true);
+            cylinder(r = nut_r, h = depth * 2, center = true, $fn = 6);
+        }
+    }
+}
+
+module fillet(r, h) {
+    translate([r / 2, r / 2, 0])
+        difference() {
+            cube([r + eta, r + eta, h], center = true);
+            translate([r/2, r/2, 0])
+                cylinder(r = r, h = h + 1, center = true);
+        }
+}
+
+module right_triangle(width, height, h, center = true) {
+    linear_extrude(height = h, center = center)
+        polygon(points = [[0,0], [width, 0], [0, height]]);
+}
+
+module rounded_square(w, h, r)
+{
+    union() {
+        square([w - 2 * r, h], center = true);
+        square([w, h - 2 * r], center = true);
+        for(x = [-w/2 + r, w/2 - r])
+            for(y = [-h/2 + r, h/2 - r])
+                translate([x, y])
+                    circle(r = r);
+    }
+}
+
+module rounded_rectangle(size, r, center = true)
+{
+    w = size[0];
+    h = size[1];
+    linear_extrude(height = size[2], center = center)
+        rounded_square(size[0], size[1], r);
+}
+
+//
+// Cylinder with rounded ends
+//
+module rounded_cylinder(r, h, r2)
+{
+    rotate_extrude()
+        union() {
+            square([r - r2, h]);
+            square([r, h - r2]);
+            translate([r - r2, h - r2])
+                circle(r = r2);
+        }
+}
+
+module sector(r, a, h, , center = true) {
+    linear_extrude(height = h, center = center)
+        intersection() {
+            circle(r = r, center = true);
+                polygon(points = [
+                    [0, 0],
+                    [2 * r * cos(a / 2),  2 * r * sin(a / 2)],
+                    [2 * r * cos(a / 2), -2 * r * sin(a / 2)],
+                ]);
+        }
+}
+
+module tube(or, ir, h, center = true) {
+    difference() {
+        cylinder(r = or, h = h,    center = center);
+        cylinder(r = ir, h = h + 1, center = center);
+    }
+}
+
+//
+// Exploded view helper
+//
+module explode(v, offset = [0,0,0]) {
+    if(exploded) {
+        translate(v)
+            child();
+        render() hull() {
+            sphere(0.2);
+            translate(v + offset)
+                sphere(0.2);
+        }
+    }
+    else
+        child();
+}