X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=reprap-play.git;a=blobdiff_plain;f=screw-recess-test.scad;h=09eb0766763886f3a72d03842620de06e41c211b;hp=9e3a333a68ee217132bfb1d9cb5d2f986e2131a1;hb=4f66d0f9315a053ba0a36b21c1e9f04a9f0c4e7a;hpb=749afaadf7c82b0ff8e8a9216ea1b196a925deca

diff --git a/screw-recess-test.scad b/screw-recess-test.scad
index 9e3a333..09eb076 100644
--- a/screw-recess-test.scad
+++ b/screw-recess-test.scad
@@ -1,53 +1,125 @@
 // -*- C -*-
 
-cubez = 12;
-
-shaftz = cubez;
-
-tests = [[4 + 0.5,  10 + 1.0]];
-
-cubexy = 20;
-
 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;
+RecessedScrewCutout_defaultrecessdepth_flat = -0.30;
+RecessedScrewCutout_defaultrecessdepth_hex = -0.60;
+
+function RecessedScrewCutout_recessdepth(recessdia,
+        recessdepth_arg=RecessedScrewCutout_defaultrecessdepth_flat) =
+  recessdepth_arg >= 0 ? recessdepth_arg : -recessdepth_arg * recessdia;
+
+function RecessedScrewCutout_totaldepth(recessdia,
+        recessdepth_arg=RecessedScrewCutout_defaultrecessdepth_flat) =
+  RecessedScrewCutout_recessdepth(recessdia, recessdepth_arg) +
+  + 0.5*recessdia + 0.1;
 
 module RecessedScrewCutout(shaftdia, recessdia, shaftlen,
-        recessdepth_arg=RecessedScrewCutout_defaultrecessdepth_flat,
-        zbelow=1) {
+        zbelow=1,
+        recessdepth_arg=RecessedScrewCutout_defaultrecessdepth_flat) {
   // 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
-    : -recessdepth_arg * recessdia;
-  recesstopz = recessdepth + 0.5*recessdia + 0.1;
-  xblocky = shaftdia + 0.1;
+  recessdepth = RecessedScrewCutout_recessdepth(recessdia, recessdepth_arg);
+  recesstopz = RecessedScrewCutout_totaldepth(recessdia, recessdepth_arg);
 
   translate([0,0,-zbelow]) cylinder(r=shaftdia/2, h=shaftlen+zbelow, $fn=20);
   RecessScrewCutout_RecessCylinder(recessdia,zbelow, recessdepth);
   intersection(){
-    translate([-recessdia*1.5, -xblocky/2, -zbelow])
-      cube([recessdia*3, xblocky, recesstopz+2+zbelow]);
+    cube([recessdia + 1, shaftdia + 0.1, recesstopz*2 + 1], center=true);
     translate([0, -recessdia, recesstopz])
       rotate([0,135,0]) cube([recessdia, recessdia*2, 10]);
     RecessScrewCutout_RecessCylinder(recessdia,zbelow, recesstopz+1);
   }
 }
 
-module Test(){
-  difference(){
-    translate([-cubexy/2, -cubexy/2, 0])
-      cube([cubexy,cubexy,cubez]);
+//              nom.   shaft
+//              shaft   slop
+screw_info_M2   = [2,   1.2];
+screw_info_M3   = [3,   1.2];
+screw_info_M4   = [4,   1.1];
+screw_info_M5   = [5,   1.0];
+screw_info_M6   = [6,   1.2];
+
+function screw_shaft_dia_nom(info)      = info[0];
+function screw_shaft_dia_use(info)      = info[0] + info[1];
+function screw_recess_dia_use(info)     = info[0] * 2.50 + 1.0;
+function screw_recess_depth(info)       = info[0] * 1.00 + 0.50;
+function screw_recess_depth_allen(info) = info[0] * 1.55 + 0.50;
+
+function RecessedScrewCutoutStandard_totaldepth(info) =
+  RecessedScrewCutout_totaldepth(screw_recess_dia_use(info),
+				 screw_recess_depth(info));
+
+function RecessedScrewCutoutStandardAllen_totaldepth(info) =
+  RecessedScrewCutout_totaldepth(screw_recess_dia_use(info),
+				 screw_recess_depth_allen(info));
+
+module RecessedScrewCutoutStandard(info, shaftlen, zbelow=1) {
+  RecessedScrewCutout(screw_shaft_dia_use(info),
+		      screw_recess_dia_use(info),
+		      shaftlen, zbelow,
+		      screw_recess_depth(info));
+}				 
+
+module RecessedScrewCutoutStandardAllen(info, shaftlen, zbelow=1) {
+  RecessedScrewCutout(screw_shaft_dia_use(info),
+		      screw_recess_dia_use(info),
+		      shaftlen, zbelow,
+		      screw_recess_depth_allen(info));
+}				 
+
+tests = [
+	 screw_info_M2,
+	 screw_info_M3,
+	 screw_info_M4,
+	 screw_info_M5,
+	 screw_info_M6
+	 ];
+
+function Test_blocksz(t) = screw_recess_dia_use(t) + 7;
+
+module OneTestCore(t, h, ymul, labelnumber=false){
+  blocksz = Test_blocksz(t);
+  translate([0, ymul * (blocksz*0.5 - 1.5), 0]) {
+    difference(){
+      translate([-blocksz/2, -blocksz/2, 0])
+	cube([blocksz, blocksz, h]);
+      child();
+    }
+    if (labelnumber) {
+      rotate([90,0,0])
+	translate([-blocksz/4,blocksz/5, blocksz/2-1])
+	linear_extrude(height=0.3+1)
+      import(file=str("screw-recess-test-number-s",t[0],".dxf"), convexity=100);
+    }
+  }
+}
+
+module OneTest(t){
+  h = RecessedScrewCutoutStandard_totaldepth(t) + 3;
+  ha = RecessedScrewCutoutStandardAllen_totaldepth(t) + 3;
+  OneTestCore(t, h, 1){
+    RecessedScrewCutoutStandard(t, h+1);
+  }
+  OneTestCore(t, ha, -1, true){
+    RecessedScrewCutoutStandardAllen(t, ha+1);
   }
 }
 
-module Hole(){
-    RecessedScrewCutout(tests[0][0],
-			tests[0][1],
-			shaftz+1);
+function Test_x(i) = i<=0 ? 0 :
+  Test_x(i-1) + Test_blocksz(tests[i-1])/2 + Test_blocksz(tests[i])/2 - 3;
+
+module Tests(){
+  for (i = [0:len(tests)-1]) {
+    echo(i, Test_x(i));
+    translate([Test_x(i), 0, 0])
+      OneTest(tests[i]);
+  }
 }
 
-//Test();
-Hole();
+//OneTest(tests[1]);
+Tests();
+//Hole();
+//Holes();