New advanced cannon

[superspud09]

Hello, this is my first advanced combustion cannon. Starting this project i really did not think that a little fan, multiple sparks, and some metered propane would make much of a difference over my old spray and pray gun but man was i wrong lol. Not sure of what kind of speed im getting but potatos go through 1/2 osb like its butter.

here are some spec:
- 4" chamber 24" long
-2"x72" barrel
-dual spark from electric grill ignitor
-computer chamber fan
-45 psi in meter seems to be magic number

[jrrdw]

Question: Where is the fuel port on the cannon?

[superspud09]

It is on the back of the chamber you cant see it in the picture. Fuel port is a 90 degree elbow with a female quick connect

[jrrdw]

I was wondering... Clean looking build. Any chances of a video?

[SpudBlaster15]

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras nec placerat erat. Vivamus dapibus egestas nunc, at eleifend neque. Suspendisse potenti. Sed dictum lacus eu nisl pretium vehicula. Ut faucibus hendrerit nisi. Integer ultricies orci eu ultrices malesuada. Fusce id mauris risus. Suspendisse finibus ligula et nisl rutrum efficitur. Vestibulum posuere erat pellentesque ornare venenatis. Integer commodo fermentum tortor in pharetra. Proin scelerisque consectetur posuere. Vestibulum molestie augue ac nibh feugiat scelerisque. Sed aliquet a nunc in mattis.

[tauschung]

Nice. I have a similar launcher..but mine is in-line.

What are the specs on your metering device (syringe and fueling device)? I have some problems with my regulator...was wondering if you had better success?

[superspud09]

Yupp ill try to get a video soon and yea SpudBlaster a barrel support probably is a good idea.

What are the specs on your metering device (syringe and fueling device)? I have some problems with my regulator...was wondering if you had better success?

Ill try to get up pics of fueling device later but my syringe is a 12" sch80 nipple(1/2 pipe) threaded into a sch80 tee then a 2 inch brass nipple then my ball valve. its kinda big but 45 psi is all i need for my 275+ cubic inch chamber

fueling setup


some damage

[jigglehippo47]

can you tell me what parts are needed for the fueling system i am working on a propane gun with the same design but breach loading and with a sliding barrel support and the only problems are with the fueling on account of the price i already have 2 other guns but they are both spray and prey.

[clemsonguy1125]

Nice cannon, only thing I would add is a barrel support, just hose clamp a piece or wood or a pair or couplers in between the chamber and barrel.

[metalmeltr]

Whoo hoo no DWV!

[superspud09]

Thanks for all the comments guys I couldn't have done it without all the help from this forum, I plan on putting a barrel support just trying to think of the best way to do so.