Fabricating New Nubbins / Detents

[temilotzin]

[GoatBoy]

I was cleaning up around here and found my old "Adjustable Sphincter" project.

So noticing this thread and being a simple man of simple means who likes shoving things into other things, I grabbed some old TL barrels, one of my detents, and shoved one in the other.

IMG_2200.jpg

Surprisingly, it actually almost works.

If it were me... well for starters I wouldn't get so weird about barrels because, I mean, come on. It's a barrel.

But it might be possible to tweak the design to still work with the TL barrel as-is. It would need to be a bit more aggressive to deal with the fact that the mag detent slot is slightly forward of the ball. Either that, or the through portion of the slot needs to get about 2-3mm or so closer to the bolt, right to where the center of the ball will land.

And then in either case you'd need a stop at the front end to keep the detent from walking forward (i.e. a drop of silicone glue or something). Or maybe extend the detent so it stops at the o-ring.

Personally, I like dual opposing detents but whatevs. Can't really do nothin bout that without no power tools.

[brokeass_baller]

I haven't had any issues at all with Doc's adapter. So there's that. The other problem with twistlocks is if you get a small enough bore to work with today's paint, you're probably going to have bolt stick issues. I always thought it was weird that Tom Kaye, who was such a stickler for precision, would give up control of the bore specs to the (much less precise) aftermarket manufacturers. Until the ULE, that is. It just seems like something he would've wanted control over, you know?

But anyway, there's no reason somebody couldn't 3D print new nubbins. If you know a guy. Might even be able to make a few bucks off of them.

[brokeass_baller]

Ty McNeer makes .665 brass inserts, as some paint has gotten that small.

Who is this Ty McNeer fella, and how do I get ahold of him?

[alpha_q_up23]

Who is this Ty McNeer fella, and how do I get ahold of him?

He used to be on MCB before the hack, I don't know what he had left in stock, iirc he didn't have too much then

[maniacmechanic]

Who is this Ty McNeer fella, and how do I get ahold of him?

Check the old school and brass forums , he used to hang here a bit too

[GoatBoy]

Automag nubbins, wire or plastic, are not that good -- not the right shape.

Spyder detents are not that good -- not the right shape.

Empire detents are not that good -- not the right shape.

The good detents are, sadly, Tippman/BT.

Looking at the BT4 Slice detent, I'm wondering if that could also be cut down and fit into a TL barrel.



Why waste your time trying to replicate a square wheel?

[brokeass_baller]

He used to be on MCB before the hack, I don't know what he had left in stock, iirc he didn't have too much then

Check the old school and brass forums , he used to hang here a bit too

Was that his username? Tymcneer? I'll look around.

[brokeass_baller]

Hey GoatBoy, what's that red thing (looks 3D printed) in your picture? Some kind of barrel adapter?

[alpha_q_up23]

Yeah his name on MCB is "tymcneer" and his airsmith section was "Brass Monkey Customs" on the old MCB, I dug up this thread where he says

https://www.mcarterbrown.com/forum/paintball-news-aa/the-armory/autocockers/84314-brass-inserts

Sorry all, but I no longer have the machinery to make those, and the shop is basically closed to new business. Family and personal health have taken a front seat, so something had to slip.

Ty

Granted that was last year, you might want to shoot him a message maybe he has some old stock

[GoatBoy]

Hey GoatBoy, what's that red thing (looks 3D printed) in your picture? Some kind of barrel adapter?

Yes, it's a 3d printed cocker barrel adapter for a Classic body.

They're a little on the fragile (that's i-talian) side, but they let me experiment with detents and stuff.