r/Form1

▲ 61 r/Form1+2 crossposts

Vid is documentation of durability testing to see if these could handle the ROF of that little monster. Cans were printed in PPA-CF and PA6 and all held up great. These designs continue to impress the heck out of me.

It didn't make it into this video, but we will post some thermal footage of these cans and the FTN Venturi 9mm soon, along with some fun experiments with the Venturi. I think the thermal vid will be value-add data for designers since its a good visual of representation of what parts of the can heat up first and thus are likely subject to the more intense forces. Either way, its cool to see.

u/ForsakenRepublic1776 — 9 days ago
▲ 36 r/Form1+1 crossposts

CBP seizure of firearm suppressor at JFK leads to Connecticut arrest and seizure of 39 firearms, explosives, and other contraband

“Auto parts from Hong Kong, determined to be a suppressor”

So people do get busted for the thinly disguised crap gimmicks I see on Amazon and Ali Baba….

cbp.gov
u/DionysiusRedivivus — 8 days ago
▲ 101 r/Form1

20 gauge range report

Took it to the range after work. Only had some 1125fps game loads. Still pretty quiet. I may add some more ports. Definitely more than hearing safe.

u/rifleshooter2 — 3 days ago
▲ 0 r/Form1

Could this be turned into a .22lr suppressor? It looks like it is 90% complete.

u/officeslampig — 6 days ago
▲ 1 r/Form1

Hello, I’m looking for some help/ guidance on doing a can for a de lisle carbine. It would be for 45, my first thought was doing it completely out of metal, but now I’m wondering if 3dp baffles would work. The barrels 8.75” and ported, anyone have some experience doing something similar?

Secondly when doing the form 1 can you put down filament but also whatever metal you’d use for baffles and then change your mind? It’s my first time looking into doing an f1 van and insights would be appreciated.

reddit.com
u/dzamp028 — 9 days ago
▲ 5 r/Form1

My form has a created date of 3/6/26. I received an email stating that it was pending research. No further correspondence. I checked the website today and there is no received date. Review of the form itself says it's "in a state."

I have no idea what is going on.

reddit.com
u/Upbeat_Guitar1070 — 10 days ago
▲ 242 r/Form1+1 crossposts

My form 1 stamping solution

Been using washers for the bigger FTNs but wanted something for SBRs and the FTN slim. This makes it easy to stamp aluminum bracelets. 3 rows of up to 26 characters. I've used them on SBRs and bent them around an FTN slim and epoxied into place.

  1. Put a piece of tape on the bottom of the jig to hold the bracelet.
  2. Stamp whatever you're putting on there.
  3. Trim them into a tag after stamping. very easy with tin snips.
  4. Create a shape in your choice of CAD software or slicer that matches the dimensions of your tag.
  5. Create/Import that shape as a negative in your slicer and place it on your NFA item. You could also extrude it in the CAD software.

Edit: you don't need to use an aluminum piece either. I've used double sided tape and put the jig directly on a receiver and stamped it.

u/Uncvl_Engineer — 16 hours ago