-
Notifications
You must be signed in to change notification settings - Fork 1
/
nateplate.escad
142 lines (114 loc) · 3 KB
/
nateplate.escad
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
//the nateplate v2 - the awesome Y axis for Prusa3
//Licensed GPLv2+ and CC-BY-SA - pick your poison
//(C) 2012 Nathan Zadoks
//parameters
$quality = 200;
r = 7.5;
cut_width = 0.005 * 25.4;
offsetx_hole = 209;
offsety_hole = 209;
offsetx_belt = 22;
hole_diam = 2.6;
hole_sides = 6;
hole_diam_threadless = 3;
ziptie_width = 6;
ziptie_thickness = 3;
ziptie_offset = 1;
xsize = offsetx_hole + r * 2;
ysize = offsety_hole + r * 2;
bearing_od = 15;
bearing_len = 24;
bearing_cutheight = 2.5;
offsetx_bearing = 110;
offsety_bearing = ysize / 3;
cutout_clip_depth = 30;
cutout_clip_width = 30;
cutout_clip_offset = ysize - 2 * cutout_clip_width * 1.5;
cutout_base = true; //for i2 compatibility
/* here be dragons */
//calculations
bearing_cutwidth = sin(acos(1 - (2 * bearing_cutheight) / bearing_od)) * bearing_od;
//singular parts
module ziptie() {
square([ziptie_thickness - cut_width, ziptie_width - cut_width], center = true);
}
module bearing() {
union() {
square([bearing_cutwidth - cut_width, bearing_len - cut_width], r = 0, center = true);
for (y = [-1, 1])
translate([y * (bearing_cutwidth + ziptie_offset * 2 + ziptie_thickness), 0] / 2) ziptie();
}
}
module hole() {
circle(r = hole_diam / 2 / cos(pi / hole_sides) - cut_width / 2, $fn = hole_sides);
}
module belt_holes_i2() {
for (x = [-1, 1]) for (y = [-1, 1])
translate([x * 18, y * 20] / 2) hole();
}
module belt_holes_i3() {
translate([0, -35 / 2]) union() {
translate([-12, 0]) hole();
translate([12, 0]) hole();
translate([0, 35]) hole();
}
}
module base_cutout() {
square([offsetx_bearing + bearing_od, ysize - offsety_bearing - bearing_len - 2 * r], r = r, center = true);
}
module clip() {
square([cutout_clip_depth * 2, cutout_clip_width], r = r, center = true);
}
module spacer() {
difference() {
circle(r = r);
circle(r = hole_diam_threadless / 2 / cos(pi / hole_sides) - cut_width / 2, $fn = hole_sides);
}
}
//part arrangements
module bearings() {
for (x = [-1, 1]) for (y = [-1, 1])
translate([offsetx_bearing * x, offsety_bearing * y] / 2) bearing();
}
module belt_holes() {
union() {
translate([offsetx_belt, 0]) union() {
belt_holes_i2();
belt_holes_i3();
}
belt_holes_i2();
}
}
module bed_holes() {
for (x = [-1, 1]) for (y = [-1, 1])
translate([offsetx_hole * x, offsety_hole * y] / 2) hole();
}
module base_cutouts() {
for (y = [-1, 1])
translate([0, ysize * y] / 2) base_cutout();
}
module clips() {
for (x = [-1, 1]) for (y = [-1, 1])
translate([xsize * x, cutout_clip_offset * y] / 2) clip();
}
module spacers() {
for (x = [-1, 1]) for (y = [-1, 1])
translate([(xsize - cutout_clip_depth) * x, cutout_clip_offset * y] / 2) spacer();
}
//actual stuff
union() {
//the nateplate itself
difference() {
difference(r = r) {
square([xsize, ysize], r = r, center = true);
clips();
if (cutout_base)
base_cutouts();
}
bearings();
belt_holes();
bed_holes();
}
//free fancy spacers
spacers();
}