Problem with comparison.
| /Designs/ROBOTS/Opticus/CAD/wheel.scad |
|---|
| 0,0 → 1,96 |
| prumer = 100; |
| rafek = 10; |
| tloustka_rafku = 10; |
| tloustka_zebrovani = 5; |
| tloustka_stredu = 12; |
| prumer_stredu = 20; |
| prumer_hridele = 4.7; |
| polomer_zakriveni = 15; |
| dokonalost_kruhu = 100; |
| vyska_loziska = 3; |
| mount_hole = 3.2; // mounting screw hole diameter |
| pocet_vykrojeni = 6; |
| vnitrni_polomer_zebrovani = 10; |
| module kolo(){ |
| intersection() { |
| difference() { |
| cylinder(r=prumer/2, h=tloustka_rafku, center=true, $fn=dokonalost_kruhu); |
| cylinder(r=prumer/2-rafek, h=tloustka_rafku*2, center=true, $fn=dokonalost_kruhu); |
| } |
| rotate_extrude(convexity=10, $fn=dokonalost_kruhu){translate([prumer/2-polomer_zakriveni, 0, 0]){circle(r = polomer_zakriveni, $fn=dokonalost_kruhu);}} |
| } |
| difference() { |
| union() { |
| translate([0,0,-(tloustka_rafku-tloustka_zebrovani)/2]) cylinder(r=prumer/2-tloustka_rafku, h=tloustka_zebrovani, center=true, $fn=dokonalost_kruhu); |
| translate([0,0,-(tloustka_rafku- tloustka_stredu)/2]) cylinder(r=prumer_stredu/2, h=tloustka_stredu, center=true, $fn=dokonalost_kruhu); |
| } |
| translate([0,0,-tloustka_stredu/2 + vyska_loziska/2 ]) |
| cylinder(r=4, h=vyska_loziska ,center=true, $fn=20); // vybrani na mozazne kluzne lozisko na vystupu motoru |
| rotate([0,0,30]){ |
| translate([0,30,4]) |
| rotate([90,0,0]) |
| cylinder (h = 30, r= mount_hole/2, $fn=20); // hole for mounting screw. |
| translate([-3 ,3, 0]) // hole for mounting nut. |
| cube([6, 3, 20], center = false); |
| difference() { // D-cut on axis |
| translate([0,0, tloustka_stredu-vyska_loziska + 0.2]) |
| cylinder(r=prumer_hridele/2, h=tloustka_stredu*2, center=true, $fn=20); |
| translate([-prumer_hridele/2,prumer_hridele/2 - 0.5,-2]) |
| cube([10, 10, 200], center=false); |
| } |
| } |
| } |
| } |
| module vykrojeni(alfa,vnitrni_polomer,r,tloustka,sirka_okraje,polomer_rohu){ |
| b = sin(alfa/2) * r; |
| intersection() { |
| translate([r/2 + sirka_okraje/sin(alfa/2),0,0]){ |
| difference(){ |
| cube([r, 2*b, tloustka], center=true); |
| union(){ |
| translate([-r/2,0,-tloustka]){ |
| rotate([0,0,alfa/2]){ |
| cube([r, b, tloustka*2], center=false); |
| } |
| } |
| translate([-r/2 - sin(alfa/2) * b,-cos(alfa/2) * b,-tloustka]){ |
| rotate([0,0,-alfa/2]){ |
| cube([r, b, tloustka*2], center=false); |
| } |
| } |
| } |
| } |
| } |
| difference() { |
| cylinder(r=r, h=tloustka, center=true,$fn=dokonalost_kruhu); |
| cylinder(r=vnitrni_polomer, h=tloustka*2, center=true,$fn=dokonalost_kruhu); |
| } |
| } |
| } |
| difference() { |
| kolo(); |
| difference() { |
| for (i=[0:pocet_vykrojeni-1]){ |
| rotate([0,0,i * 360/pocet_vykrojeni]){ |
| scale([1,1,3]) { |
| vykrojeni(360/pocet_vykrojeni,10,37,10,3); |
| } |
| } |
| } |
| translate([0,0,-tloustka_zebrovani*2]) {cylinder(r=vnitrni_polomer_zebrovani, h=tloustka_zebrovani*3, center=false, $fn=dokonalost_kruhu);} |
| } |
| } |