chiark / gitweb /
screw-recess-test: make zbelow configurable (nfc)
authorIan Jackson <ijackson@chiark.greenend.org.uk>
Wed, 11 Feb 2015 21:28:29 +0000 (21:28 +0000)
committerIan Jackson <ijackson@chiark.greenend.org.uk>
Wed, 11 Feb 2015 21:36:48 +0000 (21:36 +0000)
screw-recess-test.scad

index 3b9931f..8176878 100644 (file)
@@ -8,15 +8,16 @@ tests = [[4 + 0.5,  10 + 1.0]];
 
 cubexy = 20;
 
-module RecessScrewCutout_RecessCylinder(recessdia, h){
-  translate([0,0,-1]) cylinder(r=recessdia/2, h=h+1, $fn=40);
+module RecessScrewCutout_RecessCylinder(recessdia,zbelow, h){
+  translate([0,0,-zbelow]) cylinder(r=recessdia/2, h=h+1, $fn=40);
 }
 
 RecessedScrewCutout_defaultrecessdepth_flat = -0.35;
 RecessedScrewCutout_defaultrecessdepth_hex = -0.70;
 
 module RecessedScrewCutout(shaftdia, recessdia,
-        recessdepth_arg=RecessedScrewCutout_defaultrecessdepth_flat) {
+        recessdepth_arg=RecessedScrewCutout_defaultrecessdepth_flat,
+        zbelow=1) {
   // pass recessdepth_arg=-1 for the default for flat heads
   // pass recessdepth_arg=-1 for the default for flat heads
   recessdepth = recessdepth_arg >= 0 ? recessdepth_arg
@@ -24,14 +25,14 @@ module RecessedScrewCutout(shaftdia, recessdia,
   recesstopz = recessdepth + 0.5*recessdia + 0.1;
   xblocky = shaftdia + 0.1;
 
-  translate([0,0,-1]) cylinder(r=shaftdia/2, h=shaftz+2, $fn=20);
-  RecessScrewCutout_RecessCylinder(recessdia, recessdepth);
+  translate([0,0,-zbelow]) cylinder(r=shaftdia/2, h=shaftz+1+zbelow, $fn=20);
+  RecessScrewCutout_RecessCylinder(recessdia,zbelow, recessdepth);
   intersection(){
-    translate([-recessdia*1.5, -xblocky/2, -1])
-      cube([recessdia*3, xblocky, recesstopz+3]);
+    translate([-recessdia*1.5, -xblocky/2, -zbelow])
+      cube([recessdia*3, xblocky, recesstopz+2+zbelow]);
     translate([0, -recessdia, recesstopz])
       rotate([0,135,0]) cube([recessdia, recessdia*2, 10]);
-    RecessScrewCutout_RecessCylinder(recessdia, recesstopz+1);
+    RecessScrewCutout_RecessCylinder(recessdia,zbelow, recesstopz+1);
   }
 }