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1 | // PRUSA iteration3 |
2 | // Configuration file | |
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 | |
8e93419f | 7 | // http://github.com/josefprusa/Prusa3 |
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8 | |
9 | include <inc/metric.scad>; | |
10 | include <inc/conf_bushing.scad>; | |
11 | ||
12 | // Custom settings here, tailor to your supplies and print settings | |
13 | ||
14 | layer_height = 0.3; | |
15 | width_over_thickness = 2.2; | |
16 | ||
17 | // Select your belt type ****************************************************** | |
18 | ||
19 | //T2.5 | |
20 | //belt_tooth_distance = 2.5; | |
21 | //belt_tooth_ratio = 0.75; | |
22 | ||
23 | //T5 (strongly discouraged) | |
24 | //belt_tooth_distance = 5; | |
25 | //belt_tooth_ratio = 0.75; | |
26 | ||
27 | //HTD3 | |
28 | belt_tooth_distance = 3; | |
29 | belt_tooth_ratio = 0.75; | |
30 | ||
31 | //MXL | |
32 | //belt_tooth_distance = 2.032; | |
33 | //belt_tooth_ratio = 0.64; | |
34 | ||
35 | //GT2 there is bunch of GT2 belts with different tooth-to-tooth distance | |
36 | //adjust to your needs | |
37 | //belt_tooth_distance = 2; | |
38 | //belt_tooth_ratio = 0.5; | |
39 | ||
40 | // For T type belts you will probably want 0.8mm or so. | |
41 | belt_thickness = 1.75; | |
42 | ||
43 | // Choose bearing/bushing configuration *************************************** | |
44 | // conf_b_* are in inc/conf_bushing.scad | |
45 | ||
46 | bushing_xy = conf_b_lm8uu; | |
47 | bushing_z = conf_b_lm8uu; | |
48 | // for longer bearings use one shorter in x-carriage to make place for belt attachment | |
49 | // by default use same as xy | |
50 | bushing_carriage = bushing_xy; | |
51 | ||
52 | // Select idler bearing size ************************************************** | |
53 | // [outer_diameter, width, inner_diameter, uses_guide] | |
54 | // 608 [standard skate bearings] with bearing guide | |
55 | bearing_608 = [22, 7, 8, 1]; | |
56 | //608 bearings with fender washers. Not good at all, the belt brushes against the carriage | |
57 | bearing_608_washers = [22, 10, 8, 0]; | |
58 | // one 625 with guides | |
59 | bearing_625 = [16, 5, 5, 1]; | |
60 | // two 625 - for use without bearing guides. | |
61 | bearing_625_double = [16, 10, 5, 0]; | |
62 | ||
63 | // those two here are really good: | |
583dee57 | 64 | bearing_624_double = [13, 10, 4, 0]; |
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65 | // this one has roughly same diameter as pulley, makes belt parallel so its prettier |
66 | bearing_623_double = [10, 8, 3, 0]; | |
67 | ||
68 | idler_bearing = bearing_624_double; | |
69 | ||
70 | //Select carriage lenght | |
71 | // 30 for single carriage extruder (two holes with centers 30mm apart) | |
72 | // 50 for wade or single with fan (three holes, 30-20) | |
73 | // 80 for full length carriage (four holes, 30-20-30) | |
74 | ||
75 | carriage_l_base = 80; | |
76 | ||
77 | // Fillets ******************************************************************** | |
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78 | // fillets are rounded corners of boxes. The right engineering term is probably radius |
79 | // but cad software calls it fillet. | |
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80 | // mostly cosmetic, except z axis. |
81 | // 0 = no fillets | |
82 | // 1 = fillet | |
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83 | // 2 = chamfer (cut the edges at 45deg. angle) |
84 | // Please do put only parts with fillets on sale, other options are not really tested | |
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85 | |
86 | use_fillets = 1; | |
87 | ||
583dee57 | 88 | //set to 0 for single plate (affects z axis and screws that attach RP parts to frame) |
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89 | i_am_box = 1; |
90 | ||
91 | //if you do your own plate and can move bottom Z screws 5mm up set this to 0 to | |
92 | //get stronger motor mount. Only for i_am_box = 0 | |
93 | i_want_to_use_single_plate_dxf_and_make_my_z_weaker = 1; | |
94 | ||
95 | //radius of long threaded rod on Y frame | |
96 | //Use 5.4 for M10 or 4.4 for M8 | |
97 | y_threaded_rod_long_r = 5.4; | |
98 | ||
99 | // Thickness of the XZ plate board. Leave at 12 for single plate | |
100 | board_thickness = 18; | |
101 | ||
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102 | |
103 | // segments of small holes. some poeple claim that a low value makes them easier to print. | |
104 | small_hole_segments=7; | |
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105 | // END of custom settings |
106 | ||
107 | ||
108 | // You are not supposed to change this | |
109 | board_to_xz_distance = 26; | |
110 | xaxis_rod_distance = 45; | |
111 | ||
112 | //calculated from settings | |
113 | single_wall_width = width_over_thickness * layer_height; | |
114 | ||
115 | idler_width = (idler_bearing[1] > 7 ? idler_bearing[1] : 7) + 2.5 * idler_bearing[3] ; | |
116 | ||
117 | //deltas are used to enlarge parts for bigger bearings | |
118 | xy_delta = ((bushing_xy[1] <= 7.7) ? 0 : bushing_xy[1] - 7.7) * 0.9; | |
119 | z_delta = (bushing_z[1] <= 7.7) ? 0 : bushing_z[1] - 7.7; | |
120 | ||
121 | // CHANGE ONLY THE STUFF YOU KNOW | |
122 | // IT WILL REPLACE DEFAULT SETTING | |
123 | ||
124 | // RODS | |
125 | ||
126 | // threaded_rod_diameter = 0; | |
127 | // threaded_rod_diameter_horizontal = 0; | |
128 | // smooth_bar_diameter = 0; | |
129 | // smooth_bar_diameter_horizontal = 0; | |
130 | ||
131 | // Nuts and bolts | |
132 | ||
133 | // m8_diameter = 0; | |
134 | // m8_nut_diameter = 0; | |
135 | ||
136 | // m4_diameter = 0; | |
137 | // m4_nut_diameter = 0; | |
138 | ||
139 | // m3_diameter = 0; | |
140 | // m3_nut_diameter = 0; | |
141 | ||
142 | // Bushing holder | |
143 | ||
144 | // bushing_core_diameter = smooth_bar_diameter; | |
145 | // bushing_material_thickness = 0; | |
146 | ||
147 | ///counted stuff | |
148 | m3_nut_diameter_bigger = ((m3_nut_diameter / 2) / cos (180 / 6))*2; | |
149 | ||
150 | // functions | |
151 | include <inc/functions.scad> | |
152 | ||
153 | // These constants define the geometry of the complete-printer.scad | |
154 | ||
155 | //x_smooth_rod_length=325; | |
156 | //y_smooth_rod_length=405; | |
157 | //z_smooth_rod_length=235; | |
158 | bed_x_size=225; | |
159 | bed_y_size=225; | |
160 | ||
161 | x_smooth_rod_length=460+board_thickness*2; // 492 for 16mm thickness; 484 for 12mm thickness | |
162 | y_smooth_rod_length=470; | |
163 | z_smooth_rod_length=405; |