Commit | Line | Data |
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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 | ||
fdc7f8d6 | 11 | module zmotorholder(thickness=23, bottom_thickness=5){ |
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12 | difference(){ |
13 | union(){ | |
14 | // Motor holding part | |
15 | difference(){ | |
16 | union(){ | |
fdc7f8d6 | 17 | zrodholder(thickness=thickness, xlen=45, ylen=45, 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]) { |
163981f0 | 19 | nema17(places=[0, 1, 1, 1], h=bottom_thickness + layer_height, $fn=23); |
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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]) |
6f19795b | 26 | mirror([0, 0, 1]) nema17(places=[0, 1, 1, 1], holes=true, h=bottom_thickness + 1, shadow=-6 + layer_height); |
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27 | } |
28 | } | |
29 | } | |
30 | } | |
d3618a65 | 31 | } |
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32 | |
33 | ||
fdc7f8d6 | 34 | module zrodholder(thickness=15, bottom_thickness=5, ylen=42, xlen=34, zdelta=0){ |
5cae2970 | 35 | holder_inner_r = 9; |
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36 | difference(){ |
37 | union(){ | |
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38 | difference(){ |
39 | union(){ | |
40 | //piece along the flat side of a board | |
5cae2970 | 41 | cube_fillet([14, ylen, bottom_thickness], vertical=[8, 3, 0, 0]); |
fdc7f8d6 | 42 | cube_fillet([5, ylen, thickness], vertical=[3, 3, 0, 0], top = [thickness/2, 0, 0, 5]); |
3506b70b | 43 | //hole for Z axis is thru this |
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44 | cube_fillet([xlen, 14, bottom_thickness], vertical=[3, 0, 0, 3]); |
45 | translate([14,14,0]) { | |
46 | //large fillet that makes it stiffer by lot. Thanks to Marcus Wolschon | |
47 | difference(){ | |
48 | cube([holder_inner_r,holder_inner_r,bottom_thickness]); | |
49 | translate([holder_inner_r, holder_inner_r, -0.5]) | |
50 | cylinder(r=holder_inner_r, h=bottom_thickness + 1); | |
51 | } | |
52 | } | |
3506b70b | 53 | //piece along cut side of the board |
5e8013bd | 54 | if (i_am_box == 1) { |
eb40b77a | 55 | translate([-board_thickness, 0, 0]) |
5cae2970 | 56 | cube_fillet([board_thickness + board_to_xz_distance + bushing_z[0], 5, thickness], radius=2, top = [0, 0, 0, thickness]); |
5e8013bd | 57 | } else { |
eb40b77a | 58 | translate([-board_thickness/2, 0, 0]) |
5cae2970 | 59 | cube_fillet([board_thickness/2 + board_to_xz_distance + bushing_z[0], 5, thickness], radius=2, top = [0, 0, 0, thickness]); |
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60 | } |
61 | //smooth rod insert | |
19859bf2 | 62 | translate([board_to_xz_distance - z_delta, 9, 0]) intersection() { |
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63 | cylinder(h=bottom_thickness + layer_height, r=(bushing_z[0] + 5 * single_wall_width)); |
64 | if (bushing_z[0] < 5) { | |
65 | translate([0, -5 , bottom_thickness / 2]) cube([20, 20, bottom_thickness + 10], center=true); | |
66 | } else { | |
67 | translate([0, -bushing_z[0], bottom_thickness / 2]) cube([bushing_z[0] * 4, bushing_z[0] * 4, bottom_thickness + 10], center=true); | |
68 | } | |
69 | } | |
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70 | } |
71 | //smooth rod hole | |
19859bf2 | 72 | translate([board_to_xz_distance - z_delta, 9, -1]) cylinder_poly(h=board_thickness+20, r=bushing_z[0]); |
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73 | // cutout |
74 | translate([board_to_xz_distance-1, 5+(bushing_z[0]), 0.4]) cube([2, 10, 100]); | |
3506b70b | 75 | //inside rouned corner |
5e8013bd | 76 | translate([0, 5, -1]) cylinder(r=1.2, h=100, $fn=8); |
3506b70b | 77 | //side screw |
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78 | //translate([-board_thickness/2, 0, thickness/2-1.5]) rotate([-90, 0, 0]) screw(h=30, r_head=4); |
79 | //front screws | |
80 | if (i_am_box != 1) { | |
81 | //single plate has both screws on front | |
eb40b77a | 82 | translate([16, 35, bottom_thickness + 4.5 + zdelta]) rotate([0, -90, 0]) { |
fdc7f8d6 | 83 | screw(head_drop=14, h=122, r_head=4.5); |
5e8013bd | 84 | } |
eb40b77a | 85 | translate([16, 15, bottom_thickness + 4.5 + zdelta]) rotate([0, -90, 0]) { |
fdc7f8d6 | 86 | screw(head_drop=14, h=122, r_head=4.5); |
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87 | } |
88 | } else { | |
5cae2970 | 89 | translate([16, 30, bottom_thickness+4]) rotate([0, -90, 0]) { |
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90 | screw(head_drop=12, h=122, r_head=4); |
91 | } | |
92 | //side screw | |
5cae2970 | 93 | translate([-board_thickness/2, 0, thickness/2]) rotate([-90, 0, 0]) screw(h=30, r_head=4.5, head_drop=1); |
b32bbd0f | 94 | } |
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95 | } |
96 | } | |
97 | } | |
d3618a65 | 98 | } |
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99 | translate([0, -2, 0]) mirror([0, 1, 0]) zmotorholder(); |
100 | translate([0, 2, 0]) zmotorholder(); | |
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101 | translate([21, -62, 0]) zrodholder(); |
102 | translate([20, 62, 0]) mirror([0, 1, 0]) zrodholder(); |