add metcalf e clip

outdoor/metcalfCclip.scad

@@ -0,0 +1,66 @@
+// E clip type hardware for mystery ranch metcalf ultralite frame
+
+legDiam=10;
+bodyDiam=11.5;
+ctcLength=20;
+legLength=20;
+cordDiam=3;
+cordHoleGap=0.75;
+flattenBottom=0.3;
+$fn = 40;
+
+difference(){
+
+// half of e mirrored across yz +++++++++++++++++++++++++++++++++++++++++++
+color("blue"){
+  for (dir = [-1 : 1] ) mirror([dir, 0, 0]){
+    union(){
+      rotate([0,90,0]){
+          cylinder(ctcLength / 2, d = bodyDiam, center=false);
+      }
+      // rounded corner
+      translate([ctcLength / 2, 0, 0]){
+        sphere(d = bodyDiam);
+      }
+      // e leg outer
+      translate([ctcLength / 2, legLength / 2 + bodyDiam / 4, 0]){
+          rotate([90, 0, 0]){
+              cylinder( legLength + bodyDiam / 2, d = legDiam, center = true);
+            }
+        }
+      // rounded leg ends
+      translate([ctcLength / 2, legLength + bodyDiam / 2, 0]){
+        sphere(d = legDiam);
+      }
+    }
+  }
+}
+
+// flatten bottom for better print and interface ---------------------------
+color("red"){
+  translate([0, 0, -1 * (1 - flattenBottom) * legDiam]){
+    cube( [2 * ctcLength, 4 * legLength, legDiam], center=true);
+  }
+}
+
+//holes for cord
+color("green"){
+    for (dir = [-1 : 1]) mirror([dir, 0, 0]){
+        translate([cordHoleGap * cordDiam, 0, bodyDiam/7]){
+          rotate([90, 0, 0]){
+          cylinder( bodyDiam * 1.1, d = cordDiam, center = true);
+          }
+
+        }
+    }
+}
+
+//relief for cord bend
+color("yellow"){
+    translate([0, bodyDiam / -2, bodyDiam/7]){
+        rotate([0, 90, 0]){
+            cylinder(cordDiam * cordHoleGap * 2, d = cordDiam, center = true);
+        }
+    }
+}
+}

outdoor/metcalfEclip.scad

@@ -0,0 +1,64 @@
+// E clip type hardware for mystery ranch metcalf ultralite frame
+
+legDiam=9.5;
+bodyDiam=11.5;
+ctcLength=20;
+legLength=21;
+cordDiam=3;
+cordHoleGap=0.75;
+flattenBottom=0.3;
+$fn = 40;
+
+difference(){
+
+// half of e mirrored across yz +++++++++++++++++++++++++++++++++++++++++++
+color("blue"){
+  for (dir = [-1 : 1] ) mirror([dir, 0, 0]){
+    union(){
+      rotate([0,90,0]){
+          cylinder(ctcLength / 2, d = bodyDiam, center=false);
+      }
+      // rounded corner
+      translate([ctcLength / 2, 0, 0]){
+        sphere(d = bodyDiam);
+      }
+      // e leg outer
+      translate([ctcLength / 2, legLength / 2 + bodyDiam / 4, 0]){
+          rotate([90, 0, 0]){
+              cylinder( legLength + bodyDiam / 2, d = legDiam, center = true);
+            }
+        }
+      // e leg inner
+      translate([0, legLength * 3 / 4, 0]){
+          rotate([90, 0, 0]){
+              cylinder(0.75 * legLength, d = 0.75 * legDiam);
+            }
+        }
+      // rounded end, e leg inner
+      translate([0, legLength * 3 / 4, 0]){
+          sphere(d = 0.75 * legDiam);
+        }
+      // rounded leg ends
+      translate([ctcLength / 2, legLength + bodyDiam / 2, 0]){
+        sphere(d = legDiam);
+      }
+    }
+  }
+}
+
+// flatten bottom for better print and interface ---------------------------
+color("red"){
+  translate([0, 0, -1 * (1 - flattenBottom) * legDiam]){
+    cube( [2 * ctcLength, 4 * legLength, legDiam], center=true);
+  }
+}
+
+//hole for cord
+color("green"){
+  translate([0, legLength * 3 / 4 * 0.9, 0]){
+    cylinder( bodyDiam * 1.1, d = cordDiam, center = true);
+  }
+
+}
+
+}