I’m starting to work on an upgraded turret and weapon. Last fall @GhengisDhon sent me a step file with his feeder, so I wanted to give it a try. I didn’t bother with a bearing, already had a matching Pololu motor, and just hot glued a cut up piece I wasn’t going to use for now to recirculate. First print seems to be working fine! 30 minutes so far of continuous operation with no jams. You definitely got it figured out.
On another note, I’m trying to figure out I want my hop up to look. I’ve previously just used @jwatte’s simple one that I had Shapeways print. To connect it up with another feeder I need to modify it some, and I’d had some problems keeping the barrel positioned correctly before so I took it apart and tried to figure out how to fix things up. As I took it apart, it seems that there is no actual positive mechanism keeping the barrel from sliding out aside from friction with the rubber sleeve. See video:
Am I missing something?
Finally, the barrel style I have doesn’t seem to exist as a standalone thing. Is it just termed a “Defender style barrel”? The design that @GhengisDhon sent looks to use what I think is a more traditional airsoft inner barrel that has a bucking and uses a barrel clamp to hold it in place. What is that type of barrel called? Is the barrel clamp something that people 3D print, machine, or is it an off the shelf part? I was considering switching to that style just so the parts would be more easily accessible, although now that no airsoft store is shipping, I may end up sticking with my defender barrels.