X-Git-Url: http://challenge-bot.com/repos/?a=blobdiff_plain;f=3d-printables%2Fwheel-data.scad;h=70dc71039d081f537db10ccc54f10b20bcce0a10;hb=e8e5701429b510a164ee9cac12920913692fac75;hp=97b885bd31f6567bf8e5c080a23c010575ad0bcd;hpb=c513c8ee3d93c136e08ec45c88d1a162745db0e1;p=challenge-bot

diff --git a/3d-printables/wheel-data.scad b/3d-printables/wheel-data.scad
index 97b885b..70dc710 100644
--- a/3d-printables/wheel-data.scad
+++ b/3d-printables/wheel-data.scad
@@ -21,8 +21,8 @@ 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;
 
@@ -67,13 +67,19 @@ module wheel(radius,
              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,