+/*
+ Copyright (C) 2015 Daniel Watson
+ See the end of the file for license conditions.
+*/
// challenge-bot
// GNU AGPLv3 (or later at your option)
-// project available at these locations:
-// https://gitorious.org/ozzloy/challenge-bot
-// https://github.com/waynegramlich/challenge-bot
+// project available here:
+// https://challenge-bot.com/
// use $fn = 20 while developing, 100 when about to print
// 20 will make previews fast
wall_width = 3;
-wheel_width = 9;
-wheel_radius = sqrt(2 * pow(wheel_square_spoke_size / 2, 2)) + wall_width / 2;
+wheel_width = 7;
+wheel_radius =
+ sqrt(2 * pow(wheel_square_spoke_size / 2, 2)) + wall_width / 2 + 1;
-motor_shaft_radius = 3.7;
-motor_shaft_flat_width = 4.8;
+motor_shaft_radius = 3.9;
+motor_shaft_flat_width = 5.2;
tread_radius = 4 / 2;
shaft_flat_width,
wall_width,
tread_radius) {
+ spoke_count = 7;
+ spoke_width = radius / 3;
difference() {
rim(radius, wall_width * 2, width);
translate([0, 0, width / 2]) {
tread(radius, tread_radius); } }
linear_extrude(height = wheel_square_spoke_thickness) {
difference() {
- square(wheel_square_spoke_size, center = true);
+ union(){
+ for(spoke = [0: spoke_count - 1]) {
+ rotate(spoke * 360 / spoke_count) {
+ translate([-spoke_width / 2, 0]){
+ square([spoke_width, radius - 2]); } } } }
mounting_screw_flat(); } }
translate([0, 0, wheel_square_spoke_thickness]) {
motor_shaft_holder(shaft_radius,
shaft_flat_width,
wall_width,
width - wheel_square_spoke_thickness); } }
+
+/*
+ This file is part of challenge-bot.
+
+ Challenge-bot is free software: you can redistribute it and/or modify
+ it under the terms of the GNU Affero General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ GNU Affero Emacs is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU Affero General Public License for more details.
+
+ You should have received a copy of the GNU Affero General Public License
+ along with challenge-bot. If not, see <http://www.gnu.org/licenses/>.
+*/