bad triglide

outdoor/triglide-d.scad

@@ -0,0 +1,75 @@
+// triglide. Target 20mm
+//
+//
+
+// thickness
+rThick = 5;
+// strap width, rec 0.5mm under
+strapWide = 19.5;
+// strap thickness try 2mm
+strapThick = 2;
+// hole diam
+holeD = 10;
+// head curve
+hcDeep = 3;
+hcRad = 200;
+
+// minkowski/fillet rad
+minkRad = 1.2;
+
+$fn = 25;
+
+difference(){
+
+minkowski(){
+    difference(){
+        //main
+        union(){
+            cube([strapWide + 2 * rThick, 2 * strapThick + 3 * rThick + 10, (rThick - minkRad) * 2], center = true);
+            translate([0, strapThick + 1.5 * rThick + 8, 0]){
+                cylinder(d = 1.7 * holeD, rThick, center = true);
+              }
+          }
+
+
+        // slot 1
+        translate([0, rThick + strapThick / 2, 0]){
+            cube([strapWide + 2 * minkRad, strapThick + 2 * minkRad, 99], center = true);
+          }
+
+        // slot 2
+        translate([0, -1 * (rThick + strapThick), 0]){
+            cube([strapWide + 2 * minkRad, strapThick * 2 + 2 * minkRad, 99], center = true);
+          }
+
+        // hole
+        translate([0, strapThick + 1.5 * rThick + 8, 0]){
+            cylinder(d = holeD + 2 * minkRad, rThick * 2, center = true);
+          }
+
+         // channel
+        translate([0, -44 - rThick - strapThick, rThick - strapThick]){
+            cube([strapWide + 2 * minkRad, 88, strapThick + minkRad], center = true);
+          }
+
+         // curvature
+         translate([0, 0, hcRad + rThick - hcDeep]){
+            rotate([0, 90, 0]){
+                cylinder(r = hcRad, 99, center = true, $fn = 300);
+              }
+           }
+
+      }
+
+      // mink
+      sphere(r = minkRad);
+  }
+
+
+    // bottom
+    translate([0, 0, -222]){
+        cube([222, 222, 444], center = true);
+      }
+
+
+  }