Prusa i3 Mount for OzRocky's Pi 3 Case with POE+ HAT

Alternative mount which attaches to M3 mounting holes on a Prusa i3 frame.
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updated April 14, 2024

Description

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After deciding to change my OctoPrint box to a Pi 3B+ with POE+ HAT, I appreciated finding that OzRocky had made a case that would fit this purpose for me. However, the included mount required some changes to work on the printer frame.

The push-in fit is the same, but with screw holes to attach to the usual place on top of the controller board case. It sits a little lower than some other Pi mountings, but there is still room for the network and USB plugs.

Two M3x12 cap screws are enough, but there are three holes for a choice of whichever threads on the frame to secure to.

 

Printing Notes

It helps to check your printer is calibrated for XY size and flow to ensure the fit between case and mount is accurate.

Any normal filament should be OK, but best avoid PLA if using an enclosure. Orange or black PETG is a good choice if saying on-theme with the original Prusa i3.

0.4mm nozzle, 0.2mm or 0.25mm layers will do.

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Model origin

The author remixed this model.

Differences of the remix compared to the original

Model file altered: “Pi-3 PoE+ Mount.3mf”

  • Increased height to 31 mm.
  • Removed mounting slots on rear side.
  • Increased depth of right side and extended to make a bracket. Added three holes for M3 socket cap screws for attaching to the rear left side of an i3 printer frame.
  • Circular corner extensions on four pi case-touching sides to mitigate corner rounding and improve printed fit.
  • Two driver access holes on opposite side of mount casing (Optional model without.)

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