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Breech Loading Nail Dart Gun - Trombone Style

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
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Breech Loading Nail Dart Gun - Trombone Style

Unread postAuthor: boyntonstu » Mon Nov 30, 2009 4:15 pm

Breech Loading Nail Dart Gun - Trombone Style

[youtube]http://www.youtube.com/watch?v=Uujq9_OtWYg[/youtube]

Type L tubing is smaller in ID than type M. Duh!

Using a full no-stop coupling seems very tight.

Cutting the T's was an inspiration that I got from the copperhead gun.


Thanks.
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Unread postAuthor: Brian the brain » Tue Dec 01, 2009 12:50 pm

Genius!

Call it the Trom-Boyne!
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Gun Freak wrote:
Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!

Can't ask for a better compliment!!
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Re: Breech Loading Nail Dart Gun - Trombone Style

Unread postAuthor: Willdebeers » Tue Dec 01, 2009 1:23 pm

boyntonstu wrote:Breech Loading Nail Dart Gun - Trombone Style


Type L tubing is smaller in ID than type M. Duh!

Using a full no-stop coupling seems very tight.

Cutting the T's was an inspiration that I got from the copperhead gun.


Thanks.


And who made that tee? :D

Very nice, I love it!
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Unread postAuthor: inonickname » Wed Dec 02, 2009 5:00 am

He means copperhead prime, not the newer rocket launcher.
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Unread postAuthor: Gippeto » Wed Dec 02, 2009 2:35 pm

Will started practicing early in life. :D

Don't take it personally, we all have a go at it from time to time. :lol:
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Unread postAuthor: Brian the brain » Wed Dec 02, 2009 4:07 pm

Stu, you Pm-ed me about how to make the connection stronger..
And also about why I forgot to respond..

This time my reply is late because I have been thinking about it and I have come up with the simplest solution

You could use two Tee sections so you can align it better..
Double up the trombone joint..and it can still slide and revolve around the reservoir, yet in a controlled fashion..You could use a cut out on the joint and a stopper ( squared section of pipe-wall) soldered to the reservoir to keep it from fully revolving around the reservoir.

You could also put a spring between the trombone joint and the endcap on the reservoir.
That would keep it closed when firing.
Most elegant solution there...

Hope you understand it's not that I read and then forget your messages..
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Gun Freak wrote:
Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!

Can't ask for a better compliment!!
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Unread postAuthor: boyntonstu » Wed Dec 02, 2009 5:08 pm

Brian the brain wrote:Stu, you Pm-ed me about how to make the connection stronger..
And also about why I forgot to respond..

This time my reply is late because I have been thinking about it and I have come up with the simplest solution

You could use two Tee sections so you can align it better..
Double up the trombone joint..and it can still slide and revolve around the reservoir, yet in a controlled fashion..You could use a cut out on the joint and a stopper ( squared section of pipe-wall) soldered to the reservoir to keep it from fully revolving around the reservoir.

You could also put a spring between the trombone joint and the endcap on the reservoir.
That would keep it closed when firing.
Most elegant solution there...

Hope you understand it's not that I read and then forget your messages..


Yes, exactly my next step.

(Great minds think alike.)

If there were 2 stops, one open to the left for loading the dart, the other to the right for pulling the Trom-Boyn into the breech, it would be a delight.


The T's float with non-soldered tube stubs.


Thanks,

BoyntonStu
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Unread postAuthor: Major Collins » Sun Dec 06, 2009 1:18 am

looks like a hassel :/ not my type of breech but i guess it works for a shoot at random stuff cannon
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