Umarex to make a 68 caliber, 5-shot revolver- HDR-68

[BrickHaus]

Looking forward to seeing more progress, but I stumbled upon a file on thingiverse the other day. Someone designed these mags with oring detents the only killer is they modeled the ratchet teeth into them, so they have a short lifespan. Maybe we should remix the cylinders to simply take the metal ratchet parts from a factory cylinder.

[XEMON]

I like the idea.
I can measure how far it poke out this we if you need.

Has anyone access to a cad of the cylinder?

[The Inflicted]

I wanted to share some pics of a possible paint breakage fix I'm testing for Part-time Tech
This is a 3D-printed TPU detent replacement that seeks to stop the bolt from breaking paint at the moment of firing. Tech's initial thought was that by using the rounded, flexible detent arcs you could ensure that each ball is positioned as far back as possible, in the hopes that the bolt will be moving slower when it first makes contact with the ball, and that ball and bolt would move together for a short distance before it's shot. I've tried using them in a different way and nestled the balls as far forward as possible in an attempt to prevent the bolt from contacting them at all. My results have been mixed- no improvement with larger ~.684 GI paint but maybe around 50% breakage with some smaller .678 Empire paint. Certainly not enough to make the gun usable, but maybe an indication he's been on the right track.

Installing the detent inserts is not trivial- the hand sprocket and factory detent insert must be pried out and then each detent channel extended all the way back with a hobby knife, which isn't particularly easy given the tight confines of the cylinders.

Anyway, still working with this in the hopes of fixing the design. I do wonder if what would be more effective are cylinder cups that would hold the paintballs farther forward and out of reach of the bolt but I'm not even clear on how far forward the bolt intrudes into the cylinder wells during each cycle. Does anyone know?

[GanonsGrin]

Negative, ghost rider. I can’t even get mine to shoot FSR without blowing at least one up from every 5 shot attempt. Round ball just gets obliterated

[Brokeass_baller]

Sort of what I figured. Might just be what it is, until somebody figures out how to add a volumizer or something.

I plan on getting one of these in the future. But I'm blindly theorizing at the moment. Just tossing ideas.

[Ecapnation]

There isn't much of a chamber

[Brokeass_baller]

I don't own one, but I wonder if there's a way to increase the dump chamber volume. It could be making up for low volume with too much pressure.

[Chuck E Ducky]

It needs real hard shell paint. It shoots FS better but the velocity is meh. I haven’t had the time to really dive into it. There is definitely a way to get the velocity up. But it can’t be by adding more force on the paintball it’s already to much as it is. It needs to use what it’s got more effective/ efficiently. It’s very ruff on paint.

Hard shell plus low velocity = bounce city (it’s hard to use effectively)

I really want it to they are so fun and cool looking.

[The Inflicted]

So has anyone had success with these shooting regular paintballs?

[GanonsGrin]

To anyone else interested, these pistols are on sale on Amazon for $89 right now!

[XEMON]

Yes, shoot me a PM 👍
Here is a thread I made a while back: https://www.mcarterbrown.com/forum/b...eel-3d-printed

[GanonsGrin]

Did these ever go up for sale? I’d be interested in 2 of them if there are any still around.

[BrickHaus]

What ever came of this?

[GanonsGrin]

[BrickHaus]

Just having fun, figured Id bump this thread.