parts for my chair

diff --git a/chair-wheel-holder.scad b/chair-wheel-holder.scad
new file mode 100644 (file)
index 0000000..b4dd020
--- /dev/null
+++ b/chair-wheel-holder.scad
@@ -0,0 +1,37 @@
+infty = 100;
+eps = 0.01;
+
+module spacer() {
+       difference() {
+               cylinder(r = 33/2, h = 5);
+               translate([0, 0, -eps])
+                       cylinder(r = 15/2, h = 5 + 2*eps);
+       }
+}
+
+module inner() {
+       difference() {
+               translate([-21/2, -21/2, 0])
+                       cube([21, 21, 21]);
+               // hole
+               translate([0, 0, -eps])
+                       cylinder(r = 11.5/2, h = 21 + 2*eps);
+               // hole - moiddle ring
+               translate([0, 0, 9])
+                       cylinder(r = 12.5/2, h = 3);
+               // bottom cuts
+               for (x = [-1, 1]) scale([x, 1, 1])
+               translate([21/2-1, -infty/2, 0])
+               rotate([0, 45, 0])
+                       cube(infty);
+               // bottom cuts
+               for (x = [-1, 1]) scale([x, 1, 1])
+               translate([21/2, -infty/2, 21-1])
+               rotate([0, -45, 0])
+                       cube(infty);
+       }
+}
+       
+//  spacer();
+
+inner();