c
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3 changed files with 36 additions and 17 deletions
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@ -4,10 +4,12 @@ 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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t = 2;
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roll = spectrum;
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//roll = spectrum;
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roll = rosa_500g;
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grid_const = 100;
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grid = 18;
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@ -44,13 +46,13 @@ union() {
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top_d = roll[0] + 5;
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top_h = 6;
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thread_h = 16;
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thread_h = 17;
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chamfer_h = 4;
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chamfer_t = 3;
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chamfer_t = 8;
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// top
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up(roll[1] + 20) union() {
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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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@ -64,9 +66,9 @@ up(roll[1] + 20) union() {
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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, d=roll[0]-4*t-$slop, anchor=TOP);
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cyl(h=top_h+1, d=roll[0]-4*t-$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] - 4*t - $slop + chamfer_t, od1=roll[0] - 4*t - $slop, h=chamfer_h);
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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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}
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@ -1,15 +1,15 @@
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include <BOSL2/std.scad>
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z_dist = 25;
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l = 110;
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belt_l = 45;
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belt_t = 5;
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hook_angle = -60;
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hook_l = 2;
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w = 20;
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hook_l = 1.8;
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w = 25;
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t = 3;
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round = 10;
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t = 4;
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top_t = 1;
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round = w/2;
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out_t = belt_t + 2*t;
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@ -26,7 +26,7 @@ difference() {
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union() {
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// main part
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cuboid([w,t,l], rounding=round, edges=[BOTTOM+LEFT, BOTTOM+RIGHT]);
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up(l/2) yrot(90) fwd(out_t/2 - t/2) cyl(h=w,d=out_t);
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up(l/2) yrot(90) fwd(out_t/2 - t/2) cyl(h=w,d=out_t + top_t);
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up(l/2) down(belt_l/2) fwd(out_t - t) cuboid([w,t,belt_l], rounding=t/2, edges=[BOTTOM+BACK,BOTTOM+FWD]);;
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up(l/2) down(belt_l) fwd(out_t-t) up(t/2) xrot(hook_angle) up(t*hook_l/2)
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cuboid([w,t,t*hook_l], rounding=t/2, edges=[UP+BACK,UP+FWD]);
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@ -1,13 +1,30 @@
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include <BOSL2/std.scad>
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include <BOSL2/screws.scad>
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// variables
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h = 20;
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peg_d = 9;
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h = 25;
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peg_d = 10;
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// constants
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ball_d = 17;
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ball_shift_h = 1.2;
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ball_shift_v = 0.5;
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$slop=0.2;
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$fn=360;
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difference() {
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union() {
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// main model
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fwd(46.5) right(14.65) down(27) import("BotonS40.stl");
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up(h/2) cyl(h=h, d=peg_d);
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up(h) sphere(d=ball_d);
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// shaft
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cyl(h=h*2, d=peg_d);
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// ball
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back(ball_shift_h) right(ball_shift_v) up(h) sphere(d=ball_d);
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}
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// hole for M3 screw
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up(h + ball_d/2 - 1) union() {
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screw_hole("M3,45", head="flat sharp", anchor="head_top", thread=true);
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cyl(d=7, h=10, anchor=BOTTOM);
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}
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}
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