case_bottom_z = epp2o[1] - case_th_bottom;
+lid_close_clearance_skew = 1.3;
+
// button profile
bppM = epp4 + [0,5];
bppN = [ 0.5 * (epp0[0] + epp4[0]), bppM[1] ];
translate(skew_centre)
multmatrix([[ 1, 0, 0, 0 ],
- [ 0, 1, -2, 0 ],
+ [ 0, 1, -lid_close_clearance_skew, 0 ],
[ 0, 0, 1, 0 ],
[ 0, 0, 0, 1 ]])
translate(-skew_centre)