Originally Posted by
TurboThirdGen
Yup. That's the one. Dremel or exacto knife and I couldn't get it to fit. Got it close but it always snapped once tightened down.
Mind if I ask which areas you trimmed to get a better fit? I printed mine in PLA, for the area it shouldn't be an issue with heat except where it's close to the motor. Yours looks like PETG, and the printer could use some retraction setting tuning to clean up the print.
Ignore the crack. Took a good bit of force to crack. After it broke upon installation, I figured a proper stress test was in order. 100% infill with glow in the dark filament.
My cover was printed with PETG by a chap I found online offering 3D printing services. I paid $10 CAN to have him do this one piece for me. All 4 holes needed to be opened and I used a small file for that and checked often to make sure the self-tapping screws fit easily. The rear of the cover needed the radius enlarged a bit for a better fit, and the arc front and rear were very rough and I smoother those with my Dremel and a sanding wheel. The recessed mounting hole on the right rear did not line up with the chassis and I had to enlarge that one recess substantially before it would tighten down. The part isn't a substantial structural piece, but it does hold the bearing for the rear shaft so that is where I did my best to make sure the bearing held firmly. There was lots of fluff and thin hairs inside and out that I scraped away with an Xacto chisel blade.