pi_board_gap = 0.5;
pi_board_support_z = 2;
+pi_board_support_wall = 2;
pi_sz = [ 66.0, 30.5 ] + pi_board_gap * [1,1];
union(){
linextr(-0.1, pi_mount_z + pi_board_support_z, convexity=1)
rectfromto( pi_nom_sz/2 - 2 * [1,1] * pi_nom_centres_in,
- pi_sz/2 + [1,1] * board_support_wall);
+ pi_sz/2 + [1,1] * pi_board_support_wall);
linextr(-0.1, pi_mount_z - pi_solder_side_gap, convexity=1)
translate(sxy)
square(center=true, pi_screw_hole_dia + pi_screw_hole_wall*2);