I remixed the original file to spare material, give a funny look and make it out of 3 pieces only. This fits on a 250mm printer, so if you have a big enough printer, you won't need extensions. This has an open top, do not see the reason why you would need a closed top.
card-shoe_left.stl | 164.3KB | |
card-shoe_right.stl | 249.9KB | |
card-shoe_wedge.stl | 456.6KB |