zx532

Do you think it would be feasible to thread a screw into the plastic piece to hold it in place on the trigger pull?
(I mean one of the ones with a larger head that Nerf typically uses to hold extension springs in place)

Do you think it would be feasible to thread a screw into the plastic piece to hold it in place on the trigger pull?
(I mean one of the ones with a larger head that Nerf typically uses to hold extension springs in place)

Does this thing fire as fast as a stock RF20, or does the belt advancement slow it down?

It is slower than an RF20, but faster than a Vulcan. The belt slows it down, and moving the belt rear seal also slows things down (because the seal has a return spring, that spring is also the reason for the pressure related problems)

It may help to sleeve 2 sections of 1 1/2" bike inner tube over the bladder. I had to do that to mine on my semi-auto DTG. Wow that was tough but worth the PSI boost. I had to lube the tubes with dish soap, ditch the stock clamps and put a base layer of e-tape down before switching to hose clamps (the inner tube was being crushed through the clamp slots without the e-tape). It boosted the pressure from 30ish psi to 45ish psi (if memory serves). It will help with pressure, but not capacity.

Just make sure you don't get a thorn proof inner-tube. They're thicker on the OD of the tube, thinner on the ID.

Good idea, I'll be sure to try that
Capacity isn't really an issue, it's pressure. The RF20 bladder clearly has the capacity for 20+ shots)
I just need to increase the pressure on that amount of air. And I'm sure that this isn't quite how pneumatics work, bit it's a step in the right direction.

Volume is certainly one of the most important. The only bonus a smaller ID gives is that its easier for them to reach higher pressures at the cost of volume. You trade volume for potential psi as you get smaller. It's pneumatics. If you can fully pump your rf20 bladder without being fatigued I'd keep the pump you have.

Any chance we could see a firing vid? I'd love to see it working.

Ahh, that makes sense now

As far as the firing vid, there will be one, eventually right now it only fires a few times before stopping (RF20 bladder can't hold enough pressure for long enough) so I'm working on it, and will get back to you with that