put left motor speed pin on 10 for pwm
[challenge-bot] / 3d-printables / deck-holder-data.scad
CommitLineData
3d90aff0 1// challenge-bot
2// GNU AGPLv3 (or later at your option)
3// project available at these locations:
4// https://gitorious.org/ozzloy/challenge-bot
5// https://github.com/waynegramlich/challenge-bot
6
7/*
8 this holds an hc-sr04 sonar sensor to a 3/16 inch deck.
9 http://fritzing.org/projects/hc-sr04-project
10 it can hold the sonar sensor either facing down, or forwards.
11 when facing down, it can detect if it passes over the edge of a table.
12 when facing forwards, it can detect and follow something in front of it.
13 */
14
15$fn = 60;
16
78a38e00 17include <oshw-data.scad>
18
3d90aff0 19// 3/16 inch in mm deck_depth = 4.7625;
20// 1/4 inch in mm = 6.35
21// subtract a little to be a squeeze fit
22deck_depth = 4.7625 - 0.4;
23// sonar sensor measurements taken with calipers:
24// 10.82 in between, 42.33 outside, 15.82 diameter
25// measured diameter of 15.82 with calipers,
26// but when printed ends up being too small, so add some
27sonar_diameter = 15.82 + 0.4;
28sonar_radius = sonar_diameter / 2;
29sonar_height = 13.8;
30between_sonar_centers = sonar_diameter + 10.82;
31// the sonar cylinders are placed on the pcb at slightly different positions
32// from one sensor to the next, so this allows for that variance.
33between_sonar_centers_variance = 2;
34// keep at least this much plastic surrounding the sonar cylinder on all sides
35buffer = 3;
36sonar_holder_length = buffer + between_sonar_centers + sonar_diameter + buffer;
37sonar_holder_width = buffer + sonar_diameter + buffer;
3d90aff0 38
39// 3/16 inch in mm deck_depth = 4.7625;
40// 1/4 inch in mm = 6.35
41// subtract a little to be a squeeze fit
42deck_depth = 4.7625 - 0.4;
43// sonar sensor measurements taken with calipers:
44// 10.82 in between, 42.33 outside, 15.82 diameter
45// measured diameter of 15.82 with calipers,
46// but when printed ends up being too small, so add some
47sonar_diameter = 15.82 + 0.4;
48sonar_radius = sonar_diameter / 2;
49sonar_height = 13.8;
50between_sonar_centers = sonar_diameter + 10.82;
51// the sonar cylinders are placed on the pcb at slightly different positions
52// from one sensor to the next, so this allows for that variance.
53between_sonar_centers_variance = 2;
54// keep at least this much plastic surrounding the sonar cylinder on all sides
55buffer = 3;
56sonar_holder_length = buffer + between_sonar_centers + sonar_diameter + buffer;
57sonar_holder_width = buffer + sonar_diameter + buffer;
58// sonar_holder_depth is deck_depth minus a little bit to make arm fit
59// into deck holder
60sonar_holder_depth = deck_depth - 0.7875;
61
62deck_holder_length = sonar_holder_depth * 2 + deck_depth + 15;
63
3d90aff0 64module deck_holder() {
65 deck_holder_width = sonar_holder_width - deck_depth;
66 deck_holder_height = sonar_holder_depth * 2 + deck_depth;
67 linear_extrude(height = deck_holder_width) {
68 difference() {
69 square([deck_holder_length, deck_holder_height]);
70 translate([sonar_holder_depth - 0.15, sonar_holder_depth - 0.15]) {
71 square(deck_depth + 0.3); }
72 translate([deck_holder_height, sonar_holder_depth - 0.3]) {
73 square([deck_holder_length - (deck_holder_height),
74 deck_depth + 0.6]); } } }
75 translate([deck_holder_length - oshw_dy * 0.05, 0, deck_holder_width / 2])
76 scale([0.1, 1, 0.1])
77 rotate(v = [1, 0, 0], a = 90)
78 rotate(90)
79 linear_extrude(height = 0.5)
80 oshw();
81 translate([deck_holder_length - oshw_dy * 0.05,
82 deck_holder_height + 0.5,
83 deck_holder_width / 2])
84 rotate(v = [1, 0, 0], a = 90)
85 rotate(90)
86 scale([0.1, 0.1, 1])
87 linear_extrude(height = 0.5)
88 oshw(); }