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HELP: Threaded hole printing too large/loose (self.help)

submitted 1 month ago* (last edited 1 month ago) by RenegadeSC to c/help

8 comments fedilink hide all child comments

Tested a print of a muzzle device after calibrating some PLA Pro. The print came out looking great. However, the 1/2x28 threads in the ID are very loose, so much that with minimal force, you can pull straight past them.

So, I've seen a few different ways to fix this, but I wanted to see what the community agrees to as the "best" practice to adhere to.

Do I adjust for shrinkage, add in additional tolerance in the modeled threads, or do something else entirely?

Bambu P1S

0.4mm Nozzle

0.16mm Layer Height

Overture PLA Pro

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[–] notsuspekt 1 points 1 month ago* (last edited 1 month ago)

With something as stress-prone and tolerance sensitive as 2A components I think it's definitely worth doing. Especially if you modify your printer or use a variety of filaments. Shit, my K1C came basically unusable from the factory. Every upgrade you do requires verification.

I'd rather fail a test print than a 24 hour print job.