thehd_bl = -thehd_tr;
thehd_br = -thehd_tl;
-tablet_z_slop = 0.25;
+tablet_z_slop = 1.00;
interlock_rad = interlock_dia/2;
interlock_negative_rad = interlock_rad + 0.125;
rcy = cty + frontcurve_avoid_y;
posts = [ cnr_posts[0],
cnr_posts[1],
+ 0.5 * (cnr_posts[0] + cnr_posts[1]),
cnr_posts[2] + [ 0, -rcy ],
cnr_posts[2] + [ -sz[0] + frontedge_len - cutout_l_end_x, -cty ],
cnr_posts[3] + [ 0, -cty ]