PETG/ABS/ASA/PC or I guess PLA but its not designed for that type of plastic an might be too delicate and too much friction.
4x M3 x 8mm or M3 x 10mm socket head screws
6x M3 x 6mm socket head screws
6x screws that can go into the bottom of your desk and not poke out the top, minimum thread length of 10mm, recommend 12+
1 ton of plastic
1 ton of patience
1 good head on your shoulders to figure out how to do the supports :)
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