long range potato gun

[TexasRedNeck]

So in my construction thread, the potato gun came up so I thought I'd post a little write up.

18inches of 4 inche PVC schedule 80 and 48 inches of 2 inch schedule 40.  Connect them with a 4 to 2 reducer and on the back end connect a 4inch drain cleanout with the screw in cap.

For an igniter system I use a battery powered (AA) piezo electric BBQ ignitor.

http://www.amazon.com/gp/product/B00LJO5K2E?psc=1&redirect=true&ref_=oh_aui_detailpage_o07_s00

I then use aluminum pop rivets and sharpen the ends,  I drill 1/8 inch holes in the body of the 4 inch PVC about 1 inch apart and angled slightly towards each other so that when the rivet end is inserted into the hole from the inside, the sharped ends are within about 1/8 inch of each other to create the spark gap.  I use expoxy to hold them in place

then I solder the leads from the BBQ igniter to each and attach the ignitor to the pipe.

I also sharpen the leading edge of the 2 inch pipe so the forcing the potato in cuts away the excess.

Using a stick or broom handle, push the potato to the bottom of the 2 inch pipe.

Open the end cap and spray a slight burst of starting fluid or a couple of bursts of hairsrpay, etc.  Screw the lid on and aim carefully.  Hit the ignitor and have fun!

[TexasRedNeck]

resources

http://www.aaroncake.net/spuds/boom.asp

http://www.advancedspuds.com/fuel.htm

[TexasRedNeck]

https://youtu.be/sjS2LlMEVTc

Results

[Higher Caliber]

spud guns, my favorite past time!

[TexasRedNeck]

HC we welcome any expertise you'd like to share.  Any favorite propellants?  Pros/Cons?

[Flyin6]

I should sensor this for safety

But, like these folks, I am a red neck as well

Father please protect all those who build this thing and foolishly use it...(not that I ever used to shoot cows with such a device)

[TexasRedNeck]

Caveat constituere (constructor beware)


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[TexasRedNeck]

Don, how would you "sensor"it....


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[cudakidd53]

I should sensor this for safety

But, like these folks, I am a red neck as well

Father please protect all those who build this thing and foolishly use it...(not that I ever used to shoot cows with such a device)

You were just developing a cutting edge side of beef - Burger and Fries all in one!

[TexasRedNeck]

Meat tenderizer.


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[TexasRedNeck]

Kentucky wagyu


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[Flyin6]

Don, how would you "sensor"it....


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Delete the whole thread

Then make a public example out of you

Then fire ya! ;-))

[Flyin6]

I should sensor this for safety

But, like these folks, I am a red neck as well

Father please protect all those who build this thing and foolishly use it...(not that I ever used to shoot cows with such a device)

You were just developing a cutting edge side of beef - Burger and Fries all in one!

Good one!

Seriously though, I hit a cow a time or two. Those critters would take off like a one and a half stripped race horse!

[TexasRedNeck]

Don, how would you "sensor"it....


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Delete the whole thread

Then make a public example out of you

Then fire ya! ;-))

Oohhhh, I get it..  CENSOR

[KensAuto]

hahahahahahahhahhahahhahahahhhaa............he said sensor.....hhahahahahahhahahahahhaha

[Flyin6]

Had a change of heart, you can stay! ;)

[JR]

mooo,,,,,,,,

[Flyin6]

Yea, I kan't spel... ???

[TexasRedNeck]

Had a change of heart, you can stay! ;)

Can I get a raise?


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[Flyin6]

Had a change of heart, you can stay! ;)

Can I get a raise?


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Sure

Always in multiples of your base salary!

[Sammconn]

Double at least would work.
Err...

Still nothing I guess huh?