-nep0 = [0,0];
-nep1 = nep0 + [0,1] * neck_length;
-nep7 = nep0 + [1,0] * lip_depth;
-nep2 = [ nep7[0] + extra_slope, nep1[1] + slope * (nep7[0] + extra_slope - nep1[0]) ];
-nep3 = nep2 + [0, 0.1];
-nep4 = [ nep0[0]-1, nep3[1] ];
-nep6 = nep7 + [0,-1] * lip_height;
-nep5 = [ nep4[0], nep6[1] ];
-nepm = [ nep0[0], nep3[1] ];
+mnep0 = [0,0];
+mnep1 = mnep0 + [0,1] * mount_neck_length;
+mnep7 = mnep0 + [1,0] * mount_lip_depth;
+mnep2 = [ mnep7[0] + mount_extra_slope, mnep1[1] + mount_slope * (mnep7[0] + mount_extra_slope - mnep1[0]) ];
+mnep3 = mnep2 + [0, 0.1];
+mnep4 = [ mnep0[0]-1, mnep3[1] ];
+mnep6 = mnep7 + [0,-1] * mount_lip_height;
+mnep5 = [ mnep4[0], mnep6[1] ];
+mnepm = [ mnep0[0], mnep3[1] ];