Search found 9 matches

by rescue341
Wed Mar 29, 2017 4:09 pm
Forum: Pneumatic Cannons
Topic: Airsoft Howitzer Air Cannon Help
Replies: 10
Views: 3634

Re: Airsoft Howitzer Air Cannon Help

I accutley chose the infiltrator over something that would deliver instant air like a comperssor with a tank for two reasons the first is safety. I cant be at the cannon all the time for the 3 day event so Im not able to enforce a cool down time to let the PVC come back up to temp before firing the ...
by rescue341
Wed Mar 29, 2017 9:54 am
Forum: Pneumatic Cannons
Topic: Airsoft Howitzer Air Cannon Help
Replies: 10
Views: 3634

Re: Airsoft Howitzer Air Cannon Help

this programs just full of handy surprises. You were just about on par the program spit out a range of 186ft. haha I am compressing the air with a 120v car inflator. I have a compressor on my vacuum former that i could temporally cannibalize but with this being made out of schd 40 PVC i think 110 is...
by rescue341
Tue Mar 28, 2017 2:54 pm
Forum: Pneumatic Cannons
Topic: Airsoft Howitzer Air Cannon Help
Replies: 10
Views: 3634

Re: Airsoft Howitzer Air Cannon Help

I've been playing with that software a bit today and according to it the biggest changes I can make seems to by making the valve and the plumbing lines bigger and putting in the inner barrel as you said. its also giving me a minor boast to double the tank size. But that may be me doing something wro...
by rescue341
Tue Mar 28, 2017 4:25 am
Forum: Pneumatic Cannons
Topic: Airsoft Howitzer Air Cannon Help
Replies: 10
Views: 3634

Re: Airsoft Howitzer Air Cannon Help

I attached a badly done paint diagram. Forgive the awfulness. If I was an artist I wouldn't be going to college for electrical engineering haha. Basicly the shell is a half inch smaller then the barrle and just slides in against a stop ring (to keep the shell from becomeing the porjectile) In my min...
by rescue341
Sun Mar 26, 2017 4:45 pm
Forum: Pneumatic Cannons
Topic: Airsoft Howitzer Air Cannon Help
Replies: 10
Views: 3634

Airsoft Howitzer Air Cannon Help

Hey all Ive been working on a howitzer for a airsoft event but have ran in to a issue or two and im not sure what to try first. The cannon is a basic over under design with a .13 cu ft compression tank covered by a shrapnel shield (in case anything unfortunate happens) the tank is connected to a 1/2...
by rescue341
Fri Oct 07, 2016 4:10 pm
Forum: Combustion Cannons
Topic: Help with a combustion mortar please
Replies: 7
Views: 6120

Re: Help with a combustion mortar please

i tried the touch hole and i think im almost there. the touch hole ignites the entire chamber if the barrel is pluged and the end cap is off but if the camber is completly sealed then fuel at the touch hole ignites but not in the chamber. This would mean my Air /Fuel is off correct?
by rescue341
Fri Oct 07, 2016 12:09 am
Forum: Combustion Cannons
Topic: Help with a combustion mortar please
Replies: 7
Views: 6120

Re: Help with a combustion mortar please

I tried all of the suggestions and wasn't able to get ignition. I saw a desing on google that had a intact long neck bbq lighter with the tip in the combustion chamber and it worked almost like a on demand pilot light. I was thinking of tring this but was concerned over safety concerns. asuming the ...
by rescue341
Thu Oct 06, 2016 3:40 pm
Forum: Combustion Cannons
Topic: Help with a combustion mortar please
Replies: 7
Views: 6120

Re: Help with a combustion mortar please

Thank you for the reply! I was reading about tuber shooters with a fan to vent the chamber is that what i need and by .20 you mean the spark gap correct?
by rescue341
Thu Oct 06, 2016 2:05 pm
Forum: Combustion Cannons
Topic: Help with a combustion mortar please
Replies: 7
Views: 6120

Help with a combustion mortar please

hey all. im in a pickle i have a big airsoft game next sat. and thought hey ill build a potato gun mortar. I believe i underestimated these boom tubes. Because i cant for the life of me get it to fire. Here is the design for a combustion chamber i have 1 foot 6 inchs of 2in pvc run into a ruducer th...