if (dosquare) {
iadj = 0;
- slotshorter = round_edge_rad + 0.1
- + (negative ? 0 : interlock_fine_lenslop);
+ slotshorter = negative ? 0 : interlock_fine_lenslop;
mirror([0, negative])
translate([slotshorter, iadj])
square([length - slotshorter*2, interlock_fine + iadj*2]);