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=2e6a96e5b8f4d4ec3b39d77b1e040b974de794c5;hb=c827170d69910df04bc8b620f2ed53ed5164e633;hpb=cac68316ea14c2ce0aa8413ea503a580356b3d2b diff --git a/screw-recess-test.scad b/screw-recess-test.scad index 2e6a96e..09eb076 100644 --- a/screw-recess-test.scad +++ b/screw-recess-test.scad @@ -1,9 +1,5 @@ // -*- C -*- -cubez = 12; - -shaftz = cubez; - module RecessScrewCutout_RecessCylinder(recessdia,zbelow, h){ translate([0,0,-zbelow]) cylinder(r=recessdia/2, h=h+1, $fn=40); } @@ -38,36 +34,89 @@ module RecessedScrewCutout(shaftdia, recessdia, shaftlen, } } -// shaftdia recessdia -tests = [[2 + 0.5, 4 + 1.0, 4, -4 ], - [3 + 0.5, 6 + 1.0, 0, 10 ], - [4 + 0.5, 8 + 1.0, 0, 25 ], - [5 + 0.5, 10 + 1.0, 17, 4 ], - [6 + 0.5, 12 + 1.0, 17, 20 ]]; +// 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)); +} -last_test = tests[len(tests)-1]; +module RecessedScrewCutoutStandardAllen(info, shaftlen, zbelow=1) { + RecessedScrewCutout(screw_shaft_dia_use(info), + screw_recess_dia_use(info), + shaftlen, zbelow, + screw_recess_depth_allen(info)); +} -blockminx = -5; -blockminy = -5; -blockmaxx = 25; -blockmaxy = 20; +tests = [ + screw_info_M2, + screw_info_M3, + screw_info_M4, + screw_info_M5, + screw_info_M6 + ]; -cubexy = 20; +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){ - blocksz = t[1] + 7; - h = RecessedScrewCutout_totaldepth(t[1]) + 3; - difference(){ - translate([-blocksz/2, -blocksz/2, 0]) - cube([blocksz, blocksz, h]); - RecessedScrewCutout(t[0],t[1], h+1); + 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); } } +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 (t = tests) - translate([t[2], t[3], 0]) - OneTest(t); + for (i = [0:len(tests)-1]) { + echo(i, Test_x(i)); + translate([Test_x(i), 0, 0]) + OneTest(tests[i]); + } } //OneTest(tests[1]);