X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=reprap-play.git;a=blobdiff_plain;f=doveclip.scad;h=9884e8aa5d99b0d9ab3523e0a199e3297ac47407;hp=8d632ad05166fc51b711f4f87193e47914060373;hb=7f4662da39cb07d77a772c48336afc6b12283d7c;hpb=b15717badcfb44e8a0ff117823f395a12f30b44d

diff --git a/doveclip.scad b/doveclip.scad
index 8d632ad..9884e8a 100644
--- a/doveclip.scad
+++ b/doveclip.scad
@@ -1,32 +1,42 @@
+// -*- C -*-
+
 toothheight = 1.2;
 webthick = 1.8;
 height = 7;
-pindepth = 10;
+pinlengthfact = 1.2;
 nomrad = height/2 - toothheight;
-minrad = nomrad - 0.5;
-maxrad = nomrad + 0.5;
+minrad = nomrad - 0.75;
+maxrad = nomrad + 0.25;
+jawthick = 1.5;
 
 webgap = 0.4;
+basepinclear = 1.0;
 
 toothgap = webthick + webgap*2;
 basethick = toothheight;
-jawthick = toothheight;
 
-module DoveClipPin() {
-  translate([0,0, height/2]) intersection(){
+module DoveClipPin(h=height) {
+  pinh = h * pinlengthfact;
+  pinheight = nomrad*2 + jawthick*2;
+  translate([0,0, pinheight/2]) intersection(){
     union(){
       for (m=[0,1]) {
-	mirror([0,0,m]) translate([0,0,height/2]) rotate([90,0,0])
-	  cylinder($fn=20, r1=minrad, r2=maxrad, h=pindepth);
+	mirror([0,0,m]) translate([0,0,pinheight/2]) rotate([90,0,0])
+	  cylinder($fn=20, r1=minrad, r2=maxrad, h=pinh);
       }
-      translate([-webthick/2, -pindepth, -height/2-1])
-	cube([webthick, pindepth, height+2]);
+      translate([-webthick/2, -pinh, -pinheight/2-1])
+	cube([webthick, pinh, pinheight+2]);
     }
-    translate([-maxrad-1, -pindepth-1, -height/2])
-      cube([maxrad*2+2, pindepth+2, height]);
+    translate([-maxrad-1, -pinh-1, -pinheight/2])
+      cube([maxrad*2+2, pinh+2, pinheight]);
   }
 }
 
+function DoveClip_depth(baseextend) =
+  basethick + nomrad*2 + toothheight + baseextend;
+function DoveClip_width() =
+  nomrad*2 + jawthick*2 + toothgap;
+
 module DoveClipEnd(baseextend=1, h=7) {
   cubex = nomrad*2 + jawthick*2;
   cube0y = -basethick-nomrad*2-toothheight;
@@ -42,8 +52,27 @@ module DoveClipEnd(baseextend=1, h=7) {
 }
 
 module DoveClipPair(baseextend=1, h=7) {
-  delta = nomrad*2 + jawthick*2 + toothgap;
+  delta = DoveClip_width();
   for (x=[-delta/2,delta/2])
     translate([x,0,0])
       DoveClipEnd(baseextend=baseextend, h=h);
 }
+
+module DoveClipPairBase(baseextend=0.1, h=7) {
+  delta = nomrad*2 + jawthick;
+  intrude = nomrad + basethick - basepinclear;
+  for (x=[-delta/2,delta/2]) {
+    translate([x,0,0])
+      DoveClipEnd(baseextend=baseextend, h=h);
+  }
+  translate([-delta, -intrude, 0])
+    cube([delta*2, intrude+0.1, h]);
+}
+
+module DoveClipPairSane(baseextend=0, h=7) {
+  rotate([0,0,90])
+    translate([0, DoveClip_depth(baseextend=0), 0])
+    DoveClipPairBase(baseextend=baseextend, h=h);
+}
+
+DoveClipPairSane(baseextend=10);