Well. My bad. I didn’t think about .22 when answered. The chamber surface of .22 is 3 times smaller than 9mm, so, could work.

Anyways. This just reminds me, were is a “3d printed pipe calculator” https://guncadindex.com/detail/Supressor-Wall-Thickness-Calculator:9. Cans oriented, but could give a rough approximated info for a chambers and barrels.

This thing never built to fire a real ammo. Tho it’s archive includes needed components, accidentally. What for a primers only - then yes, it’s firing. But as long as I’m actively developing the thing and the ammo for it, I do not bother with counting for each design. May be over a hundred total.

Without chamber liners - no. There was my video on (nuked) Reddit with the SnubbyBuddy blowing the PA-GF cylinder. With just 1.5grains of powder charge (as far I can recall).

Search in the Photon do not allow to limit search by community/instance.

Photon. But the search is better in LemmyUI

Yep, more dangerous. And, although I can buy the red phosphorus, this could attract unwanted attention to me. I’d prefer to avoid.

Looks like I was wrong :-) the blowing primers issue was caused by the concentric pattern of the top shell, the bottom shell and the solid infill. Note the Orcaslicer’s “Detect narrow internal solid infill” option, which could force the concentric infill despite of the “Internal solid infill pattern” setting. Yea, “999 walls” is not overall good.

Testing continues…

I’ve made some changes. The top of the primer made thinner, around 1mm now. Also changed anvil depth. And today I had first time when all 5 round fired from first strike.

So, I’ve printed more primers, loaded pair of. Aaand they kaboomed. While taking remnants out of primer pocket, I notices the plastic is brittle. Not like the Nylon should be. I suspect this is because I don’t let em to moisturize.

Well. I was not lazy this time :-) Tho removing the stippling from the grips model is a PITA…

https://odysee.com/@clearview4851:e/Grip-inserts-AR15-FGC9mkII-for-testing-rest:7

Well. The idea of this thing is what the grips inserts could be shared separately. Without updating the main package every time. That’s why the second idea - the grip inserts should be interchangeable with original Ransom Rest device. Tho I have no original, and can’t test. btw, may be one day I’ll make AR-15 inserts as well, if nobody will do it prior.

I, may be, wrong described the problem, sorry. English is not my primary :) The problem is not about the printed anvil broken. The anvil itself stay in place. But it’s point smashed. The primer punched pretty well. Even the priming matrix is damaged. But fire not set. The plastic tip of the anvil dumps the impact impulse. Adding the steel pin do the magic. The pins could be DIY from a wire, just hard to maintain the length as precise as factory made.

BTW, the 43R family have many interesting designs which could be inherited to smaller calibers.

Lookin to the TDS, BambuLab PPA-CF beats ST PPA-CF. But it’s hard to compare the values directly, because BambuLab separates the values of Z and XY and SirayaTech not. Anyway it still tough PPA-CF material and ~2x cheaper. I’d probably pull the trigger.

btw, Reddit doing it’s Redditing (Redditifying? Redditification?) :

Ah… I see now. Just not on “p.forum…” interface.

For video: may be template/button to add Odysee video then?

Uploaded small video to Odysee: https://odysee.com/@clearview4851:e/notachi_toycaps_firing:a

This thing designed for centerfire cartridges, I’m even not sure, if the hammer strike force will be enough for rimfired. Anyway, it is excessively large for .22. It designed for 13mm OD liners, that’s why the cylinder is so big.
If someone will redesign it for .22 - always welcome. But I strongly recommend to do it ONLY for high-skilled person. It is very experimental thing.

Nope, It’s completely ok.