bike-lipo-box: TestWall: replace ad-hoc with S1930_Negative (nfc)

[reprap-play.git] / doveclip.scad

diff --git a/doveclip.scad b/doveclip.scad
index 9884e8aa5d99b0d9ab3523e0a199e3297ac47407..0536c1c4ecbc0ed498fc748618ea261bba830068 100644 (file)
--- a/doveclip.scad
+++ b/doveclip.scad
@@ -1,4 +1,23 @@
 // -*- C -*-
+//
+// doveclip.scad
+//
+// 3D design for a fastener suitable for Reprapss
+// Copyright 2012,2016 Ian Jackson
+//
+// This work is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This work is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this work.  If not, see <http://www.gnu.org/licenses/>.
+
 
 toothheight = 1.2;
 webthick = 1.8;
@@ -32,10 +51,8 @@ module DoveClipPin(h=height) {
   }
 }
 
-function DoveClip_depth(baseextend) =
-  basethick + nomrad*2 + toothheight + baseextend;
-function DoveClip_width() =
-  nomrad*2 + jawthick*2 + toothgap;
+function DoveClip_depth() =
+  basethick + nomrad*2 + toothheight;
 
 module DoveClipEnd(baseextend=1, h=7) {
   cubex = nomrad*2 + jawthick*2;
@@ -52,27 +69,93 @@ module DoveClipEnd(baseextend=1, h=7) {
 }
 
 module DoveClipPair(baseextend=1, h=7) {
-  delta = DoveClip_width();
+  delta =  nomrad*2 + jawthick*2 + toothgap;
   for (x=[-delta/2,delta/2])
     translate([x,0,0])
       DoveClipEnd(baseextend=baseextend, h=h);
 }
 
-module DoveClipPairBase(baseextend=0.1, h=7) {
+module DoveClipPairBase(baseextend=0.1, h=7, count=2) {
   delta = nomrad*2 + jawthick;
   intrude = nomrad + basethick - basepinclear;
-  for (x=[-delta/2,delta/2]) {
-    translate([x,0,0])
+  for (i=[0:count-1]) {
+    translate([(i - (count-1)/2) * delta, 0, 0])
       DoveClipEnd(baseextend=baseextend, h=h);
   }
-  translate([-delta, -intrude, 0])
-    cube([delta*2, intrude+0.1, h]);
+  translate([-delta * count/2, -intrude, 0])
+    cube([delta * count, intrude+0.1, h]);
 }
 
-module DoveClipPairSane(baseextend=0, h=7) {
+module DoveClipPairSane(baseextend=0, h=7, count=2) {
   rotate([0,0,90])
-    translate([0, DoveClip_depth(baseextend=0), 0])
-    DoveClipPairBase(baseextend=baseextend, h=h);
+    translate([0, DoveClip_depth(), 0])
+    DoveClipPairBase(baseextend=baseextend, h=h, count=count);
+}
+
+function DoveClipPairSane_width(count=2) =
+  2 * (nomrad + jawthick + ((nomrad*2 + jawthick) * (count-1)/2));
+
+module ExtenderPillar(length, height,
+                     pillarw=3.5, pillarslope=0.75, webthick=1) {
+  pillarr=pillarw/2;
+  d = 0.25;
+
+  intangle = atan(pillarslope);
+  polyjx = sin(intangle)*pillarr;
+  polyjy = cos(intangle)*pillarr;
+  polyex = -tan(intangle+90)*pillarr;
+  webmidy = height/2+d;
+
+  for (xmir=[0,1])
+    translate([0,0,height/2]) mirror([0,0,xmir])
+      translate([0,0,-height/2]) {
+      intersection() {
+       translate([-1, -pillarr-5, 0.01])
+         cube([length+2, height+pillarr*2+10, height]);
+       mirror([1,0,0]) rotate([0,-90,0])
+         linear_extrude(height=length) union(){
+         circle(r=pillarr, $fn=20);
+         polygon([[polyjx,polyjy-0.1], [polyex, 0],
+                  [polyjx,-(polyjy-0.1)]]);
+         polygon([[0,-webthick/2], [0,webthick/2],
+                  [webmidy,webthick/2], [webmidy,-webthick/2]]);
+       }
+      }
+    }
+}
+
+module ExtenderPillars(length, width, height,
+                      pillarw=3.5, pillarslope=0.75, webthick=1,
+                      baseweb=false, basewebthick=1) {
+  pilesw = width - pillarw;
+
+  for (ymir=[0,1]) mirror([0,ymir,0]) translate([0,-pilesw/2,0]) {
+      ExtenderPillar(length, height, pillarw, pillarslope, webthick);
+    }
+
+  if (baseweb) {
+    translate([0, -pilesw/2, 0])
+      cube([length, pilesw, basewebthick]);
+  }
+}
+
+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;
+  pilesh = min(ha, hb) - 0.5;
+
+  translate([DoveClip_depth() - 1, 0, 0])
+    ExtenderPillars(pillarlen, pilesw, pilesh,
+                   pillarw=pillarw, pillarslope=pillarslope,
+                   webthick=webthick);
 }
 
-DoveClipPairSane(baseextend=10);
+//DoveClipExtender(length=100, ha=16, hb=20, counta=3, countb=4);