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Idea for a plunger design


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#1 Devalis

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Posted 22 December 2019 - 01:22 AM

I'm probably not the first to think of this by a long shot, but I have an idea for a curved plunger tube that may make things like double break shotguns easier to make with working hammers.  I am willing to share it with the community if it helps something cool get made.  I attached a quick sketch of the design.  It would be powered by a torsion spring and directly primed by a rotating hammer, much like a real gun.  It may not be powerful enough to do much if it even would work, but all you really need for a shotgun is about 15-20 feet right?   Feedback greatly appreciated.

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#2 snakerbot

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Posted 23 December 2019 - 02:34 PM

Huh. That's clever. I think you may run into some issues with minimum bend radius on the plunger tube. Sealing on a surface that curves in more than one dimension might also be more tricky than just a cylinder. My gut is that something with more give than an o-ring might work better. Perhaps a skirt seal or a washer seal like a SNAP, although I'm just spitballing here. Interested to see where you go with it.


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