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2159eed1 VAH |
1 | // PRUSA iteration3 |
2 | // Z axis | |
3 | // GNU GPL v3 | |
4 | // Josef Průša <josefprusa@me.com> | |
5 | // Václav 'ax' Hůla <axtheb@gmail.com> | |
6 | // http://www.reprap.org/wiki/Prusa_Mendel | |
7 | // http://github.com/prusajr/PrusaMendel | |
8 | ||
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9 | include <configuration.scad> |
10 | ||
0f6ec51a | 11 | module zmotorholder(thickness=(i_am_box == 0 ? 38 : 23), bottom_thickness=5){ |
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12 | difference(){ |
13 | union(){ | |
14 | // Motor holding part | |
15 | difference(){ | |
16 | union(){ | |
0f6ec51a | 17 | zrodholder(thickness=thickness, xlen=45, ylen=44, zdelta=((i_want_to_use_single_plate_dxf_and_make_my_z_weaker == 0) ? 0 : 5)); |
3506b70b | 18 | translate([board_to_xz_distance, board_to_xz_distance, 0]) { |
854f95f0 | 19 | nema17(places=[0, 1, 1, 1], h=bottom_thickness + layer_height, $fn=23, shadow=layer_height + 2); |
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20 | } |
21 | } | |
d3618a65 | 22 | |
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23 | // motor screw holes |
24 | translate([board_to_xz_distance, board_to_xz_distance, thickness]) { | |
5e8013bd | 25 | mirror([0, 0, 1]) translate([0, 0, thickness-8]) |
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26 | nema17(places=[0, 1, 1, 1], holes=true, h=bottom_thickness + 1); |
27 | //shadow=-6 + layer_height); | |
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28 | } |
29 | } | |
30 | } | |
31 | } | |
d3618a65 | 32 | } |
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33 | |
34 | ||
0f6ec51a | 35 | module zrodholder(thickness=(i_am_box == 0 ? 14 : 15), bottom_thickness=5, ylen=44, xlen=34, zdelta=0){ |
5cae2970 | 36 | holder_inner_r = 9; |
0f6ec51a | 37 | holder_inner_r2 = 2; |
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38 | difference(){ |
39 | union(){ | |
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40 | difference(){ |
41 | union(){ | |
42 | //piece along the flat side of a board | |
5cae2970 | 43 | cube_fillet([14, ylen, bottom_thickness], vertical=[8, 3, 0, 0]); |
0f6ec51a | 44 | cube_fillet([5, ylen, thickness], vertical=[3, 3, 0, 0], top = [thickness / 1.7, 0, 0, 5]); |
3506b70b | 45 | //hole for Z axis is thru this |
5cae2970 | 46 | cube_fillet([xlen, 14, bottom_thickness], vertical=[3, 0, 0, 3]); |
0f6ec51a | 47 | translate([14, 14, 0]) { |
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48 | //large fillet that makes it stiffer by lot. Thanks to Marcus Wolschon |
49 | difference(){ | |
0f6ec51a | 50 | cube([holder_inner_r, holder_inner_r, bottom_thickness]); |
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51 | translate([holder_inner_r, holder_inner_r, -0.5]) |
52 | cylinder(r=holder_inner_r, h=bottom_thickness + 1); | |
53 | } | |
54 | } | |
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55 | translate([5, 5, 0]) { |
56 | difference(){ | |
57 | cube([holder_inner_r2, holder_inner_r2, thickness - 5.5]); | |
58 | translate([holder_inner_r2, holder_inner_r2, -0.5]) | |
59 | cylinder(r=holder_inner_r2, h=thickness + 1, $fn=20); | |
60 | } | |
61 | } | |
3506b70b | 62 | //piece along cut side of the board |
5e8013bd | 63 | if (i_am_box == 1) { |
eb40b77a | 64 | translate([-board_thickness, 0, 0]) |
0f6ec51a | 65 | cube_fillet([board_thickness + board_to_xz_distance + bushing_z[0], 5, thickness], radius=2, top = [0, 0, 0, thickness], $fn=99); |
5e8013bd | 66 | } else { |
eb40b77a | 67 | translate([-board_thickness/2, 0, 0]) |
0f6ec51a | 68 | cube_fillet([board_thickness/2 + board_to_xz_distance + bushing_z[0], 5, thickness], radius=2, top = [0, 0, 0, thickness], $fn=99); |
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69 | } |
70 | //smooth rod insert | |
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71 | translate([board_to_xz_distance - z_delta, 9, 0]) |
72 | cylinder(h=bottom_thickness / 2, r=(bushing_z[0] + 5 * single_wall_width)); | |
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73 | } |
74 | //smooth rod hole | |
a6ba4321 | 75 | translate([board_to_xz_distance - z_delta, 9, -1]) cylinder_poly(h=board_thickness+20, r=bushing_z[0] + single_wall_width / 4); |
3506b70b | 76 | //inside rouned corner |
0f6ec51a | 77 | translate([0, 5, -1]) cylinder(r=0.8, h=100, $fn=8); |
3506b70b | 78 | //side screw |
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79 | //translate([-board_thickness/2, 0, thickness/2-1.5]) rotate([-90, 0, 0]) screw(h=30, r_head=4); |
80 | //front screws | |
81 | if (i_am_box != 1) { | |
82 | //single plate has both screws on front | |
eb40b77a | 83 | translate([16, 35, bottom_thickness + 4.5 + zdelta]) rotate([0, -90, 0]) { |
0f6ec51a | 84 | plate_screw(); |
5e8013bd | 85 | } |
eb40b77a | 86 | translate([16, 15, bottom_thickness + 4.5 + zdelta]) rotate([0, -90, 0]) { |
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87 | plate_screw(); |
88 | } | |
89 | //motor mount has third screw | |
90 | translate([16, 25, bottom_thickness + 4.5 + zdelta + 20]) rotate([0, -90, 0]) { | |
91 | plate_screw(); | |
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92 | } |
93 | } else { | |
5cae2970 | 94 | translate([16, 30, bottom_thickness+4]) rotate([0, -90, 0]) { |
0f6ec51a | 95 | plate_screw(); |
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96 | } |
97 | //side screw | |
0f6ec51a | 98 | translate([-board_thickness/2, -11, thickness/2]) rotate([-90, 0, 0]) plate_screw(); |
b32bbd0f | 99 | } |
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100 | } |
101 | } | |
102 | } | |
d3618a65 | 103 | } |
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104 | translate([10, -50, 0]) zmotorholder(); |
105 | translate([0, 50, 0]) mirror([0, 1, 0]) zmotorholder(); | |
106 | translate([67, 14, 0]) rotate([0,0,90]) zrodholder(); | |
107 | translate([77, -14, 0]) rotate([0, 0, -90]) mirror([0, 1, 0]) zrodholder(); |