A bezel/button cover for the soft buttons on the right side of the CRT on a HP 8757A network analyzer. This bezel includes the focus and intensity labels for the potentiometers underneath and snaps into place like the original.

Prusa

I3 MK3S

No

Yes

125um

25

Use a low layer height for detail on the narrow lines running towards the CRT (you need a smaller than 0.4mm nozzle to get them to extend down the print like the original parts). Print outside face up with supports and the clips to hold it on should print fine. The top layer is especially sensitive to overextrusion or nozzle damage, especially around the lettering, maybe using a concentric or other top layer pattern would produce better results than the one pictured.