Covid-19 project

[cajun 22]

There was a thread on here where a member made an electric switch with a dead man backup. Can't find it now but will keep looking.

 

[BuffDragon]

re: melting
since it'll be powered anyways, add a cooling fan to push heat out the front. may not help much, but would think every little bit would be useful.
example; computer cooling fan in smoke stack pushing down in to cavity. if its "sealed" pretty good, really only exit for pressurized air would be out front (around barrel) and thus take some of the heat with it.
admittedly, this could easily be a waste of time. dunno

 

[EL DUCE]

Pretty funny and cool.

 

[gman552]

Nice!

"Have you met my friend Thomas? Say hello to my little friend!" BRRRRRT

 

[Mackjack]

If you do work around cars a lot of them have 12vdc shit similar to this in the doors for power locks. Might want to explore that type of thing.

https://www.summitracing.com/parts/...e0MAaMSHwnsFoJER3zb30CStIxsXTMlhoCyLIQAvD_BwE

 

[mak91]

If you do work around cars a lot of them have 12vdc shit similar to this in the doors for power locks. Might want to explore that type of thing.

https://www.summitracing.com/parts/...e0MAaMSHwnsFoJER3zb30CStIxsXTMlhoCyLIQAvD_BwE

Thanks, that is exactly the type of things I have been looking at. In fact I've already ordered an automotive power door lock solenoid but I an not sure if I'll have enough room in there for it so I also ordered a smaller solenoid somewhat like the one you have here which is rated at 12lbs which I am hoping might work.

 

[sniperdoc]

Maybe make a "heat shield" for the barrel out of a metal tube that provides an air gap of approximately 1/8" clearance around the barrel.

 

[colossians323]

awesome OP!

 

[TOOL1075]

A recommendation you've probably already thought of, but I figured I would add just in case:

You'll be powering with a 12V battery of some kind, I assume. You may want a lot of amp hours which may result in high(er) amperage than you may think, so, due to the heat generation of actual firing and possible wire damage resulting in a short and then a fire, I would use a switch to operate a relay that then delivers power to the servo or solenoid or whatever actuates the fire control group.

Just food for thought.

This is awesome.