Posted 06 January 2016 - 05:33 PM

Found myself with a lot of free time recently and decided to get back into nerf. This seemed like a good, simple build, so I set off to do so.

It's now a few hours later and the thing â€‹almostâ€‹ works, but I can't quite get the last little push.

A couple things had to be changed from my build and the OP;

1) The rod from my caulk gun is just â€‹barelyâ€‹ too large to fit through the bronze bearing, so I had to replace that section with cardboard and electrical tape (as far as I can tell, it's perfectly fine as an air seal).

2) The 3/4" plug on yours has a much more pronounced lip, which keeps the o-rings on better (that's what I can only assume, anyway, since the plunger head keeps falling apart inside the gun).

When I make the o-rings small enough for the plunger head to move smoothly inside the pipe, the air seems to escape somewhere (I suspect it goes out the back of the blaster, and that the o-ring seal isn't good enough).

However, making the o-rings large enough that it creates a good seal, but a little bit of friction, the entire plunger head assembly falls apart and it's a pain (rather literally) to reset from there.

Anyone have any ideas? (I'll edit the post with pictures in a little bit once my phone isn't dead)

(Edit: photos added, also I feel I should clarify that I'm using a #69 spring)

(Edit 2: holy butts, the nerfhaven image uploader compresses so hard)

Edit 3:

So I tried the system with a weaker spring, and it still had the same problem (o-rings sliding off inside the tube). I need to find a way to create a larger lip on the 3/4" plug.

Edit 4:

Enlarged the lip with thin strips of duct tape, but there's still a leak somewhere. I can't find it at all.

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Edited by TOTtomdora, 06 January 2016 - 08:47 PM.