- translate([bigr, bigr, 0])
- rotate_extrude(convexity=10)
- translate([bigr, 0])
- circle(r= round_edge_rad);
+ intersection(){
+ cube(bigr*2 + 0.1, center=true);
+ translate([bigr, bigr, 0])
+ rotate_extrude(convexity=10, $fn=50)
+ translate([bigr, 0])
+ difference(){
+ circle(r= round_edge_rad, $fn=50);
+ mirror([1,1])
+ square([20,20]);
+ }
+ }