It's recommended to print it in ABS/ASA and at 50% infill and 4 walls. Make two mirror copies of the model.
Items to Purchase:
2020 Extrusion, must be 421 mm long
4x M3x8mm screws
The author remixed this model.
Original model was designed with 6mm gap in the aluminium extrusion. I was only able to source extrusion with 5mm gap, so I had to modify the model.