Probably wanna post in !general@forum.guncadindex.com, friend. This is the general-purpose 3D printing community on lemmy.ml. It's like posting to /r/3Dprinting instead of /r/fosscad.
Fwiw I still haven't gotten a response back from the mods about whether gun stuff is allowed, but it's probably best not to bug the normal folks here if we don't have to.
This is also good advice for ABS/ASA and filled plastics. Honestly, I'm way less concerned about PLA fumes than I am styrene or potential airborne microscopic carbon fibers.