Rev 4193 Rev 4195
1 prumer = 100; 1 prumer = 100;
2 rafek = 10; 2 rafek = 10;
3 tloustka_rafku = 10; 3 tloustka_rafku = 10;
4 tloustka_zebrovani = 5; 4 tloustka_zebrovani = 5;
5 tloustka_stredu = 12; 5 tloustka_stredu = 12;
6 prumer_stredu = 20; 6 prumer_stredu = 20;
7 prumer_hridele = 5.1; 7 prumer_hridele = 4.2;
8 polomer_zakriveni = 15; 8 polomer_zakriveni = 15;
9 dokonalost_kruhu = 100; 9 dokonalost_kruhu = 100;
10 vyska_loziska = 3; 10 vyska_loziska = 3;
11 mount_hole = 3.2; // mounting screw hole diameter 11 mount_hole = 3.2; // mounting screw hole diameter
12   12  
13 pocet_vykrojeni = 6; 13 pocet_vykrojeni = 6;
14 vnitrni_polomer_zebrovani = 10; 14 vnitrni_polomer_zebrovani = 10;
15   15  
16 module kolo(){ 16 module kolo(){
17 intersection() { 17 intersection() {
18 difference() { 18 difference() {
19 cylinder(r=prumer/2, h=tloustka_rafku, center=true, $fn=dokonalost_kruhu); 19 cylinder(r=prumer/2, h=tloustka_rafku, center=true, $fn=dokonalost_kruhu);
20 cylinder(r=prumer/2-rafek, h=tloustka_rafku*2, center=true, $fn=dokonalost_kruhu); 20 cylinder(r=prumer/2-rafek, h=tloustka_rafku*2, center=true, $fn=dokonalost_kruhu);
21 } 21 }
22 rotate_extrude(convexity=10, $fn=dokonalost_kruhu){translate([prumer/2-polomer_zakriveni, 0, 0]){circle(r = polomer_zakriveni, $fn=dokonalost_kruhu);}} 22 rotate_extrude(convexity=10, $fn=dokonalost_kruhu){translate([prumer/2-polomer_zakriveni, 0, 0]){circle(r = polomer_zakriveni, $fn=dokonalost_kruhu);}}
23 } 23 }
24   24  
25 difference() { 25 difference() {
26 union() { 26 union() {
27 translate([0,0,-(tloustka_rafku-tloustka_zebrovani)/2]) cylinder(r=prumer/2-tloustka_rafku, h=tloustka_zebrovani, center=true, $fn=dokonalost_kruhu); 27 translate([0,0,-(tloustka_rafku-tloustka_zebrovani)/2]) cylinder(r=prumer/2-tloustka_rafku, h=tloustka_zebrovani, center=true, $fn=dokonalost_kruhu);
28 translate([0,0,-(tloustka_rafku- tloustka_stredu)/2]) cylinder(r=prumer_stredu/2, h=tloustka_stredu, center=true, $fn=dokonalost_kruhu); 28 translate([0,0,-(tloustka_rafku- tloustka_stredu)/2]) cylinder(r=prumer_stredu/2, h=tloustka_stredu, center=true, $fn=dokonalost_kruhu);
29 } 29 }
30 30
31 translate([0,0,-tloustka_stredu/2 + vyska_loziska/2 ]) 31 translate([0,0,-tloustka_stredu/2 + vyska_loziska/2 ])
32 cylinder(r=4, h=vyska_loziska ,center=true, $fn=20); // vybrani na mozazne kluzne lozisko na vystupu motoru 32 cylinder(r=4, h=vyska_loziska ,center=true, $fn=20); // vybrani na mozazne kluzne lozisko na vystupu motoru
33   33  
34 rotate([0,0,30]){ 34 rotate([0,0,30]){
35 translate([0,30,2]) 35 translate([0,30,2])
36 rotate([90,0,0]) 36 rotate([90,0,0])
37 cylinder (h = 30, r= mount_hole/2, $fn=20); // hole for mounting screw. 37 cylinder (h = 30, r= mount_hole/2, $fn=20); // hole for mounting screw.
38 38
39 translate([-3 ,3, -2]) // hole for mounting nut. 39 translate([-3 ,3, -2]) // hole for mounting nut.
40 cube([6, 3, 20], center = false); 40 cube([6, 3, 20], center = false);
41   41  
42 difference() { // D-cut on axis 42 difference() { // D-cut on axis
43 translate([0,0, tloustka_stredu-vyska_loziska + 1]) 43 translate([0,0, tloustka_stredu-vyska_loziska + 0.2])
44 cylinder(r=prumer_hridele/2, h=tloustka_stredu*2, center=true, $fn=20); 44 cylinder(r=prumer_hridele/2, h=tloustka_stredu*2, center=true, $fn=20);
45 translate([-prumer_hridele/2,prumer_hridele/2 - 0.5,-2]) 45 translate([-prumer_hridele/2,prumer_hridele/2 - 0.5,-2])
46 cube([10, 10, 200], center=false); 46 cube([10, 10, 200], center=false);
47 } 47 }
48 } 48 }
49 } 49 }
50 } 50 }
51   51  
52   52  
53 module vykrojeni(alfa,vnitrni_polomer,r,tloustka,sirka_okraje,polomer_rohu){ 53 module vykrojeni(alfa,vnitrni_polomer,r,tloustka,sirka_okraje,polomer_rohu){
54 b = sin(alfa/2) * r; 54 b = sin(alfa/2) * r;
55   55  
56 intersection() { 56 intersection() {
57 translate([r/2 + sirka_okraje/sin(alfa/2),0,0]){ 57 translate([r/2 + sirka_okraje/sin(alfa/2),0,0]){
58 difference(){ 58 difference(){
59 cube([r, 2*b, tloustka], center=true); 59 cube([r, 2*b, tloustka], center=true);
60 union(){ 60 union(){
61 translate([-r/2,0,-tloustka]){ 61 translate([-r/2,0,-tloustka]){
62 rotate([0,0,alfa/2]){ 62 rotate([0,0,alfa/2]){
63 cube([r, b, tloustka*2], center=false); 63 cube([r, b, tloustka*2], center=false);
64 } 64 }
65 } 65 }
66 translate([-r/2 - sin(alfa/2) * b,-cos(alfa/2) * b,-tloustka]){ 66 translate([-r/2 - sin(alfa/2) * b,-cos(alfa/2) * b,-tloustka]){
67 rotate([0,0,-alfa/2]){ 67 rotate([0,0,-alfa/2]){
68 cube([r, b, tloustka*2], center=false); 68 cube([r, b, tloustka*2], center=false);
69 } 69 }
70 } 70 }
71 } 71 }
72 } 72 }
73 } 73 }
74   74  
75 difference() { 75 difference() {
76 cylinder(r=r, h=tloustka, center=true,$fn=dokonalost_kruhu); 76 cylinder(r=r, h=tloustka, center=true,$fn=dokonalost_kruhu);
77 cylinder(r=vnitrni_polomer, h=tloustka*2, center=true,$fn=dokonalost_kruhu); 77 cylinder(r=vnitrni_polomer, h=tloustka*2, center=true,$fn=dokonalost_kruhu);
78 } 78 }
79 } 79 }
80 } 80 }
81   81  
82 difference() { 82 difference() {
83 kolo(); 83 kolo();
84 difference() { 84 difference() {
85 for (i=[0:pocet_vykrojeni-1]){ 85 for (i=[0:pocet_vykrojeni-1]){
86 rotate([0,0,i * 360/pocet_vykrojeni]){ 86 rotate([0,0,i * 360/pocet_vykrojeni]){
87 scale([1,1,3]) { 87 scale([1,1,3]) {
88 vykrojeni(360/pocet_vykrojeni,10,37,10,3); 88 vykrojeni(360/pocet_vykrojeni,10,37,10,3);
89 } 89 }
90 } 90 }
91 } 91 }
92   92  
93 translate([0,0,-tloustka_zebrovani*2]) {cylinder(r=vnitrni_polomer_zebrovani, h=tloustka_zebrovani*3, center=false, $fn=dokonalost_kruhu);} 93 translate([0,0,-tloustka_zebrovani*2]) {cylinder(r=vnitrni_polomer_zebrovani, h=tloustka_zebrovani*3, center=false, $fn=dokonalost_kruhu);}
94 } 94 }
95   95  
96 } 96 }