X-Git-Url: http://challenge-bot.com/repos/?a=blobdiff_plain;f=3d-printables%2Fcaster-standoff.scad;h=2b2bf571a0a34f4ea6aa1dc90e101a74ddf971d3;hb=53534f87550a82d0089aa2ba8422a9e19bb3a681;hp=a385735f0bd040aa98d9f6b984f57b0e39b8e3b0;hpb=87816db670cfeed5fcd148ab2c254264956ec761;p=challenge-bot

diff --git a/3d-printables/caster-standoff.scad b/3d-printables/caster-standoff.scad
index a385735..2b2bf57 100644
--- a/3d-printables/caster-standoff.scad
+++ b/3d-printables/caster-standoff.scad
@@ -8,7 +8,7 @@
 $fn = 60;
 
 /* measured with calipers */
-ball_diameter = 12.7 + 1.125;
+ball_diameter = 12.7 + 0.75; // extra bit added for printing imprecision
 ball_radius = ball_diameter / 2;
 
 wall_thickness = 1;
@@ -56,11 +56,12 @@ module deck_flange_reinforcement(){
 
 module ball_holder(){
   gap = wall_thickness * 4;
+  floor = wall_thickness;
   difference (){
-    cylinder(r = holder_radius, h = holder_height);
-    translate([0, 0, ball_radius + wall_thickness]){
+    cylinder(r = holder_radius, h = holder_height + floor);
+    translate([0, 0, ball_radius + wall_thickness + floor]){
       sphere(r = ball_radius);}
-    translate([0, 0, holder_height / 2 + wall_thickness]){
+    translate([0, 0, holder_height / 2 + wall_thickness + floor]){
       cube([holder_diameter + 0.1, gap, holder_height],
            center = true);}}}