Reorganize: kebab-case names, per-item subdirectories, regroup items

2026-07-12 22:27:02 -04:00
parent 7bb8b65e54
commit f107187c56
8 changed files with 0 additions and 0 deletions
@@ -0,0 +1,107 @@
+$fn = 300;
+
+// * c w
+part = "w";
+
+slot_center_spacing = 25.4;
+
+
+ramp_height = 5;
+ramp_slot_mid = 4.25;
+ramp_depth = 2.5;
+
+deramp_height = 1;
+deramp_depth = (ramp_depth / ramp_height) * (ramp_height - deramp_height);
+
+bearing_radius = 8.1;
+bearing_underhang = 1;
+bulk_radius = 4;
+
+bearing_height = 5;
+bearing_count = 2;
+
+core_radius = 9.5;
+core_bump_radius = 1;
+core_bump_height = 2;
+
+e = 0.02;
+
+inner_radius = bearing_radius - bearing_underhang;
+echo("inner_radius=", inner_radius);
+
+outer_radius = inner_radius + bulk_radius;
+echo("outer_radius=", outer_radius);
+
+echo("max_radius=", outer_radius + ramp_depth);
+
+mid = slot_center_spacing - ramp_slot_mid - ramp_slot_mid;
+
+total_height = deramp_height + ramp_height + mid + ramp_height + deramp_height;
+echo("total_height=", total_height);
+
+bearing_portion = mid / bearing_count;
+
+if (part == "*" || part == "c") {
+    color("grey", 0.6)
+    intersection() {
+        wheel();
+        core_mask();
+    }
+}
+
+if (part == "*" || part == "w") {
+    color("red", 0.6)
+    difference() {
+        wheel();
+        core_mask();
+    }
+}
+
+module core_mask() {
+    rotate_extrude()
+    polygon([
+        [0, total_height + e],
+        [0, 0 - e],
+        
+        [core_radius + core_bump_radius, 0 - e],
+        [core_radius + core_bump_radius, 0],
+        [core_radius, core_bump_height],
+        [core_radius, total_height - core_bump_height],
+        [core_radius + core_bump_radius, total_height],
+        [core_radius + core_bump_radius, total_height + e],
+    ]);
+}
+
+module wheel() {
+    // deramp
+    // ramp
+    //   [tip]
+    // ramp
+    // mid
+    // ramp
+    //   [tip]
+    // ramp
+    // deramp
+
+    difference() {
+        rotate_extrude()
+        polygon([
+            [inner_radius, total_height],
+            [inner_radius, 0],
+            
+            [outer_radius + deramp_depth, 0],
+            [outer_radius + ramp_depth, deramp_height],
+            [outer_radius, deramp_height + ramp_height],
+            [outer_radius, deramp_height + ramp_height + mid],
+            [outer_radius + ramp_depth, deramp_height + ramp_height + mid + ramp_height],
+            [outer_radius + deramp_depth, total_height],
+        ]);
+        
+
+        for (b = [0 : bearing_count - 1]) {
+            translate([0, 0, deramp_height + ramp_height + (b * bearing_portion)])
+            translate([0, 0, bearing_portion / 2 - bearing_height / 2])
+            cylinder(h=bearing_height, r=bearing_radius);
+        }
+    }
+}