doveclip DoveClipExtender has rounded pillars

[reprap-play.git] / doveclip.scad

diff --git a/doveclip.scad b/doveclip.scad
index 6e9bb1d5d1b940c7eaaaa16d205eac426ec58c17..7c9c1a3e5e43fe97ad4a8bf8ddcbd371c101d182 100644 (file)
--- a/doveclip.scad
+++ b/doveclip.scad
@@ -75,3 +75,47 @@ module DoveClipPairSane(baseextend=0, h=7, count=2) {
 
 function DoveClipPairSane_width(count=2) =
   2 * (nomrad + jawthick + ((nomrad*2 + jawthick) * (count-1)/2));
+
+module DoveClipExtender(length, ha=7, hb=7, counta=2, countb=2,
+                       pillarw=3.5, pillarslope=0.75, webthick=1) {
+  mirror([1,0,0])
+    DoveClipPairSane(h=ha, count=counta);
+  translate([length,0,0])
+    DoveClipPairSane(h=hb, count=countb);
+  pillarlen = length - DoveClip_depth() * 2 + 2;
+  pilesw = min(DoveClipPairSane_width(counta), DoveClipPairSane_width(countb))
+    - 0.5 - pillarw*2;
+  pilesh = min(ha, hb) - 0.5;
+  d = 0.25;
+  echo(pilesh);
+
+  intangle = atan(pillarslope);
+  polyjx = sin(intangle)*pillarw;
+  polyjy = cos(intangle)*pillarw;
+  polyex = -tan(intangle+90)*pillarw;
+  webmidy = pilesh/2+d;
+
+  translate([DoveClip_depth() - 1, 0, 0]) {
+    for (ymir=[0,1]) mirror([0,ymir,0]) translate([0,-pilesw/2,0]) {
+       for (xmir=[0,1])
+         translate([0,0,pilesh/2]) mirror([0,0,xmir])
+             translate([0,0,-pilesh/2]) {
+           intersection() {
+             translate([-1, -pillarw-5, 0.01])
+               cube([pillarlen+2, pilesh+pillarw*2+10, pilesw]);
+             mirror([1,0,0]) rotate([0,-90,0])
+               linear_extrude(height=pillarlen) union(){
+                 circle(r=pillarw, $fn=20);
+                 polygon([[polyjx,polyjy-0.1], [polyex, 0],
+                          [polyjx,-(polyjy-0.1)]]);
+                 //polygon([[pilesh,0], [pilesh-pillarh,0], [pilesh,pillarw]]);
+                 polygon([[0,-webthick/2], [0,webthick/2],
+                          [webmidy,webthick/2], [webmidy,-webthick/2]]);
+             }
+           }
+         }
+      }
+  }
+}
+
+//DoveClipExtender(length=100, ha=16, hb=20, counta=3, countb=4);