added headlamp bracket

.gitignore

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+*.stl

outdoor/cordHook_18cord.scad

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+// hook designed to hook knots on small diameter cord and be as snagless as possible
+
+// closed hole diameter
+cdLoop = 2.9;
+// hook slot width
+cdHook = 1.5;
+// slot section od
+bigD = 17;
+// closed hole section od
+smallD = 8;
+// slot angle
+degSlot = 40;
+// thickness
+thick = 4;
+// minkowski sphere radius, fillet rad sort of
+filletRad = 2;
+// sets side bulge. adds strength and beauty. low value will cause failed print. tested at 0.4
+bulbousness = 0.3;
+// 40+ faces for print but it makes minkowski very slow in editing
+$fn = 35;
+
+// diff for slicing off top bottom and loop hole
+difference(){
+  //trace sphere for chamfering around union of two cylinders with slot
+  minkowski(){
+    //two cylinders with a slot cut at around ? degrees
+    difference(){
+        union(){
+          cylinder(d = bigD, thick * bulbousness, center = true);
+          // center starts origin, so translate up sin30 and right cos30
+          translate([cos(degSlot) * bigD/2, sin(degSlot) * bigD/2, 0]){
+              cylinder(d = smallD, thick * bulbousness, center = true);
+            }
+          }
+        // slot:
+        translate([50, 0, 0]){
+            cube([100, cdHook + 2 * filletRad, 2], center = true);
+          }
+        // rounded slot pocket:
+        cylinder(d = cdHook + 2 * filletRad, 2, center = true);
+      } // diff
+
+    sphere(r = filletRad);
+
+    }
+
+  // minus:
+  translate([cos(degSlot) *  bigD/2, sin(degSlot) * bigD/2, 0]){
+      cylinder(d = cdLoop, 55, center = true);
+    }
+  for (dir = [-1, 1]) translate([0, 0, dir * (thick / 2 + 1)]){
+      cube([99, 99, 2], center = true);
+    }
+  }
+

outdoor/headlampv1.scad

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+// Headlamp bracket to mount lamp to nylon strap v1
+// requires tweaking of plateScale when changing strap width
+// v2 TODO:
+//     autoscale plate geometry with strapwidth, light cant
+//     headcurve is janky
+
+// downward light angle
+lCant = 20;
+// clipin angle
+clipRot = -30;
+// clip length:
+clipLength = 29;
+// light diametewr
+lDiam = 22;
+// clip tightness, use 0.8 (tight) to 0.99 (no retention)
+clippiness = 0.85;
+
+// plate thick
+plateThick = 7;
+// plate scale - how many times cliplength, affected by strap and cant
+// 2.7 seems right for 25mm strap, 1.9 for 20mm strap
+plateScale = 2.2;
+
+// strap width
+strapWide = 21;
+// strap thickness try 3mm
+strapThick = 2.1;
+
+// head curve, puts slight curve in head side
+hcRad = 550;
+hcDepth = 4.2;
+
+minkRad = 2;
+$fn = 20;
+// mechanical interface facets should be high when printing
+interfaceFacets = 35;
+
+// lop off several things, each gets comment
+difference(){
+
+minkowski(){
+  // union of plate and clip
+  union(){ 
+    //clip
+    // translate so back hits yz plane
+    translate([ (1.2 * lDiam / 2), 0, 0]){
+      // rotate for cant
+      rotate([lCant, 0, 0]){
+        // rotate clip entry
+        rotate([0, 0, clipRot]){
+          color("Green"){
+            difference(){
+                // outer clip diameter account mink
+                cylinder(d = 1.2 * lDiam, 2 * clipLength, center = true);
+                
+                // minus light diam account mink
+                cylinder(d = lDiam + minkRad, 99, center = true, $fn = interfaceFacets);
+                // minus clip entry account mink, the cube y dimension coefficient is clip clippiness, try 0.8-0.95
+                translate([44, 0, 0]){
+                    cube([88, clippiness * (lDiam + minkRad), 99], center = true);
+                  }
+              } // end diff
+            }
+          } // rot clip
+        } // rot cant
+      } // trans in xy
+
+      // begin plate:
+      rotate([0, -90, 0]){
+          linear_extrude(plateThick - minkRad - plateThick / 2, scale = 1.15){
+              // this polygon adjusts to cant angle and clip length 
+              polygon([ [0, 0], [clipLength * cos(lCant), -1 * clipLength * sin(lCant)], [plateScale * clipLength, strapWide + 7] , [0, strapWide + 7] ]);
+            }
+        }
+
+
+    } // un
+
+// this does the fillets
+sphere(r = minkRad);
+
+}
+
+// cut off below xy plane
+translate([0, 0, -22]){
+    cube([99, 99, 44], center = true);
+  }
+// cut off back of plate slot for strap
+translate([-44 - minkRad, strapWide / 2 + 5, 0]){
+    cube([88, strapWide, 222], center = true);
+  }
+// add top slot
+translate([-40, strapWide / 2 + 5, (plateScale + 1) / 1.8 * clipLength * cos(lCant)]){
+    rotate([45, 0, 0]){
+        cube([88, 1.414 * strapWide, strapThick], center = true);
+      }
+  }
+// add bottom slot
+translate([-40, strapWide / 2 + 5, strapWide * 1.414 / 2]){
+    rotate([-45, 0, 0]){
+        cube([88, 1.414 * strapWide, strapThick], center = true);
+      }
+  }
+// head curve
+translate([-1 * hcRad - plateThick + hcDepth, 0, (strapWide * 1.414 / 2 + (plateScale + 1) / 1.8 * clipLength * cos(lCant)) / 2 ]){
+    rotate([90, 0, 0]){
+        cylinder(r = hcRad, 99, center = true, $fn = 300);
+      }
+  }
+
+
+} // plane diff

outdoor/headlampv2.scad

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+// Headlamp bracket to mount lamp to nylon strap v1
+// requires tweaking of plateScale when changing strap width
+// v2 TODO:
+//     autoscale plate geometry with strapwidth, light cant
+//     headcurve is janky
+
+// downward light angle
+lCant = 20;
+// clipin angle
+clipRot = -30;
+// clip length:
+clipLength = 29;
+// light diameter, testing at 0.25 below measured for tightness?
+lDiam = 20.75;
+// clip tightness, use 0.8 (tight) to 0.99 (no retention)
+clippiness = 0.85;
+
+// plate thick
+plateThick = 7;
+// plate scale - how many times cliplength, affected by strap and cant
+// 2.7 seems right for 25mm strap, 1.9 for 20mm strap
+plateScale = 1.5;
+
+// strap width
+strapWide = 21;
+// strap thickness try 3mm
+strapThick = 2.1;
+
+// head curve, puts slight curve in head side
+hcRad = 400;
+hcDepth = 4.8;
+
+minkRad = 2;
+$fn = 20;
+// mechanical interface facets should be high when printing
+interfaceFacets = 35;
+
+// lop off several things, each gets comment
+difference(){
+
+minkowski(){
+  // union of plate and clip
+  union(){ 
+    //clip
+    // translate so back hits yz plane
+    translate([ (1.2 * lDiam / 2), -5, 0]){
+      // rotate for cant
+      rotate([lCant, 0, 0]){
+        // rotate clip entry
+        rotate([0, 0, clipRot]){
+          color("Green"){
+            difference(){
+                // outer clip diameter account mink
+                cylinder(d = 1.2 * lDiam, 2 * clipLength, center = true);
+                
+                // minus light diam account mink
+                cylinder(d = lDiam + minkRad, 99, center = true, $fn = interfaceFacets);
+                // minus clip entry account mink, the cube y dimension coefficient is clip clippiness, try 0.8-0.95
+                translate([44, 0, 0]){
+                    cube([88, clippiness * (lDiam + minkRad), 99], center = true);
+                  }
+              } // end diff
+            }
+          } // rot clip
+        } // rot cant
+      } // trans in xy
+
+      // begin plate:
+      rotate([0, -90, 0]){
+          linear_extrude(plateThick - minkRad - plateThick / 2, scale = 1.15){
+              // this polygon adjusts to cant angle and clip length 
+              polygon([ [0, 0], [clipLength * cos(lCant), -1 * clipLength * sin(lCant)], [plateScale * clipLength, strapWide + 7] , [0, strapWide + 7] ]);
+            }
+        }
+
+    } // un
+
+// this does the fillets
+sphere(r = minkRad);
+}
+
+// cut off below xy plane
+translate([0, 0, -22]){
+    cube([99, 99, 44], center = true);
+  }
+// cut off back of plate channel for strap
+translate([-43.5 - minkRad, strapWide / 2 + 8, 0]){
+    cube([88, strapWide, 222], center = true);
+  }
+// add top slot
+translate([-2, strapWide / 2 + 8, (plateScale + 1) / 1.95 * clipLength * cos(lCant)]){
+    rotate([0, 45, 0]){
+        cube([16, strapWide, strapThick], center = true);
+      }
+  }
+// add bottom slot
+translate([-2, strapWide / 2 + 8, strapWide / 2]){
+    rotate([0, -45, 0]){
+        cube([16, strapWide, strapThick], center = true);
+      }
+  }
+// head curve
+translate([-1 * hcRad - plateThick + hcDepth, 0, (strapWide / 2 + (plateScale + 1) / 1.95 * clipLength * cos(lCant)) / 2 ]){
+    rotate([90, 0, 0]){
+        cylinder(r = hcRad, 99, center = true, $fn = 300);
+      }
+  }
+
+} // plane diff