print in the orientation the load in. for better top surface quality consider using ironing on the top part.

3 walls, 20-30%infill, no supports. i printed in abs but pla or petg should be fine. (unless you use it in an enclosure, where i would recommend abs maybe petg)

2x m3x6mm BHCS
2x M3x12mm BHCS
2x m3 hex nuts
1x ziptie less than 2mm thick and 5mm wide.

kp3s internal ("external") mosfet bed heater holder: https://www.thingiverse.com/thing:5326275

KP3S z-carriage cable holder: https://www.thingiverse.com/thing:5326264

MGN9H z axis KP3S linear rail: https://www.thingiverse.com/thing:5326253

Prusa

Mk2.5s

0.2mm

20-30%