76 lines
No EOL
1.9 KiB
OpenSCAD
76 lines
No EOL
1.9 KiB
OpenSCAD
include <BOSL2/std.scad>
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include <BOSL2/threading.scad>
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// the values are diameter, length
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// specify diameter 2-3mm smaller for clearance, length doesn't matter much
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spectrum = [51, 65]; // in diam = 53
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rosa_500g = [53, 45];
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elegoo = [54, 65]; // in diam 56
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t = 2;
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//roll = spectrum;
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//roll = rosa_500g;
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roll = elegoo;
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grid_const = 100;
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grid = 18;
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$slop = 0.3;
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$fn = 360;
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module holes(size, num) {
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down(100/2) textured_tile("trunc_diamonds", size, tex_depth=100, tex_reps=[num,num], tex_extra=0);
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}
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// bottom
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union() {
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difference() {
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// main body
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cyl(d=roll[0], h=t, anchor=BOTTOM);
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// holes
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holes(roll[0], grid);
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}
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}
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// wall
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union() {
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difference() {
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// main body
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tube(h=roll[1], od=roll[0], wall=t, anchor=BOTTOM);
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// holes
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// cyl(h=roll[1], d=20, tex_reps=[40,20], texture="pyramids", tex_depth=roll[0]*2, anchor=BOTTOM);
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}
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// top threads
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for(a = [0,180] ) {
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zrot(a) up(roll[1] - 2*t) thread_helix(d=roll[0] - 4*t, pitch=5, thread_depth=2, turns=0.2, internal=true);
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}
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}
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top_d = roll[0] + 5;
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top_h = 6;
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thread_h = 17;
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chamfer_h = 4;
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chamfer_t = 8;
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// top
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up(roll[1] + 50) union() {
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// top
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difference() {
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cyl(d=roll[0], h=t, anchor=TOP);
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holes(roll[0], grid);
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}
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// cylinder with threads
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tube(od=roll[0] - 4*t - $slop, wall=t, h=thread_h, anchor=TOP);
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for(a = [0,180] ) {
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zrot(a) down(thread_h - 4) thread_helix(d=roll[0] - 4*t - $slop, pitch=5, thread_depth=2, turns=0.2);
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}
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// outer part with texture
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difference() {
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cyl(d=top_d, h=top_h, anchor=TOP, texture="hex_grid");
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cyl(h=top_h+1, d=roll[0]-4*t-$slop, anchor=TOP);
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}
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// tube(od=top_d, id=roll[0]-4*t-$slop, h=top_h, anchor=TOP, texture="hex");
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// chamfered part
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down(top_h) tube(id=roll[0] - 4*t - $slop, od2=roll[0] - 2*t - $slop + chamfer_t, od1=roll[0] - 4*t - $slop, h=chamfer_h);
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} |