// -*- 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,
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();