1
Tunkkis 1 point ago +1 / -0

You don't print the whole filter. You print the easily replaceable baffles, and use a metal tube.

4
Tunkkis 4 points ago +4 / -0

It may not be in the bore, but it'll still weaken the structural integrity. I've no authority to say whether it's safe or not, but that looks sketchy as fuck to me. Test fire remotely, perhaps?