$fn=180; //filename = "rj45lid.dxf"; filename = "he10lid.dxf"; difference() { union() { linear_extrude(height = 1.5, convexity = 10) import (file = filename, layer = "Outline1"); linear_extrude(height = 2.5, convexity = 10) import (file = filename, layer = "Outline2"); } linear_extrude(height = 4, convexity = 10) import (file = filename, layer = "Cutout"); }