5 shot cannon...

[spudkpi]

This is my first cannon i have submitted to the forum. I have previously built 3 other cannons... one ball valve, one solenoid, and one combustion. Overall my cannons are very basic but i tried to take this one to the next level... hopefully its good. I respect the opinions of people on this site more than anyone else. Tell me what you think!

There is a primary chamber that is filled to 140 psi then regulated into the firing chamber at 40 psi..

[spudkpi]

How do I get the dumb pics to show up on the site and not by a URL? i cant figure it out... people are using liek tables and stuff please help im noob. thanks

[Velocity]

ok nevermind... its hard to explain... there is something about image uploading on this site


nice cannon

[djt]

go to where it says add attachment and search for the picture on your computer. then try to add the attachment. if its too big then go to the paint program on your computer and click on sketch/skew under image on the top bar and say you want the pic to be 25 percent or something. then save it and try uploading again.

i like the whole idea of your cannon being five shots. i havnt seen anything like that yet except for using co2.

speaking of which, since you already have a regulator and know how to set it up and such, you should try using a co2 tank instead of the large tank on the top of the gun for even more shots.

[spudkpi]

problem with using co2 is that you have to buy a new regulator and adapters because the psi from a co2 tank is too high for a regular regulator... but thanks for the feedback i really appreciate it... and for the help with the pics...

[Shrimphead]

Looks good. Nice idea and setup.

[M3NT4L]

140 psi wow ur pushing that gun! thats realy nice, you could make it alot faster with a spring fed magazine. Good job!

[Shrimphead]

Is there a bell reducer on that thing? Because if that is you might want to check if it's rated.

[spudkpi]

Nope no bell reducer...

[huse_spud]

cool idea man, i havent been on spudfiles for awhile and im starting to catch up.

this cannon is pretty neat, that's 3/4 cpvc for the barrel right?

[spudkpi]

Yep, and it fits paintballs and marbles like a dream...

[huse_spud]

Yep, and it fits paintballs and marbles like a dream...

try using a layer or two of saran wrap if u need to point the gun down cuz having the pb's roll out can be a pain in the butt.

but this might hurt performance but im not sure.

[spudkpi]

Put saran wrap where? the paintballs seal perfectly... the marbles however do not and do roll out but i dont understand the saran wrap? You dont mean put it inside the barrel?

[Major Collins]

i wanted this design but to be on slightly a larger scale of having a air chamber that fills to 400 psi (i already got a air chamber that fills to 400 psi )and having 3 shots at roughly at 133 psi or 4 shots at 100 psi but the secondary chamber i wanted to be smaller any helpful hints? i was using a piece of 40 mm PVC chamber 30 cm in length and it only held 40 psi when i bleed the air into it :/ so triple that and 120 psi but the chamber would be 90 cm long .. way too large for what i want . any ideas and or suggestions?

[jackssmirkingrevenge]

What calibre were you after? For anything under half an inch a hammer valve is a practical proposition that is not too hard to make and will remove the need for a secondary chamber.