Thanx!

The fittings are priced around 5euro for 2 1/2".

I'm proud off my paintjob. :) Before I painted it, i've done some rework on the trigger. The trigger was mounted on the outlet, since it was leaking at around 4 bar I replaced it on the inlet line. Problem solved. :) I tie wrapped the trigger so it's holded tightly to the fitting/pipe. Here some pic...

All my cannons I make are for recreational tennisball/golfball shooting.
I never use my cannons for destruction.
Thats why I choose for this valve.
Maximum pressure I will be using is 8 bar.

Hi folks! It's winter time here so it's time to build a new cannon. I will use something that I never used before, a sprinkler valve. Offcourse it will be modified for pneumatic piloting. A found a sprinkler valve in the Netherlands (online shop). Some little specs: Chamber: 20cm 2 1/2" steel pipe (...

Thanks for the tips, I appreciate it!

I've got some 2" to 5/4" reducers here laying around.
I understand your thing for larger unions.
I will go for a 5/4" union.

Hello. I decided to start a new hybrid project. I will start from the beginning with a new cannon, i keep the pmhl not in mind. Extually it works great but i wan't something new. :p I had some part laying around here. I will start with this first. http://i44.photobucket.com/albums/f22/airpress/31C38...

Some pics. :) http://i44.photobucket.com/albums/f22/airpress/640ab90274aa0a7a1203286339e39824_zps37daadd3.jpg on the way... http://i44.photobucket.com/albums/f22/airpress/5f474c8f55ca9467147cb1aef6d5f970_zpse6203c3e.jpg loading the tennisball http://i44.photobucket.com/albums/f22/airpress/a74be969ba...

Hmmm, i'm thinking to throw this cannon away and start from the beginning.

The only 2 things I can say:

- the chamber will be 2" steel pipe 25cm long
- high voltage ignition

Thanx!

I found the 2,5" pipe on a online pipe/fittings store.
I'm from belgium and ordered the pipe and fittings from the netherlands.
Thats where I ordered all my fittings/pipes for cannons because its cheaper than in belgium.

Thanx for the reactions! Here some pics with the barrel connected. http://i44.photobucket.com/albums/f22/airpress/B544C4BE-1F57-4A01-83AD-31756FE9E6E3-5610-000001927A987977-3.jpg http://i44.photobucket.com/albums/f22/airpress/33F612A8-60F1-4E13-9C72-0BFCA7C9DD59-5610-000001928322D5E9.jpg http://i44....

Barrel painted in the same red as the valve handle.
I gave it 3 layers.

Some movement is this build. :) Here's the cannon mounted with the piloting area. I know it's a big volume but i works great. http://i44.photobucket.com/albums/f22/airpress/10875659-8A00-4C08-84C6-5C91A04DAB0E-75356-000016BEF4DF1983.jpg some other pics http://i44.photobucket.com/albums/f22/airpress/...

the barrel

Hihi bubblegum.

No it's polyester putty, it comes very hard and is for smootening the edges of the fitting with the pipe.

Hi all. Currently I am building a new pneumatic launcher. The valve i'm gonna use is a 2" selfmade piston valve. Some more specs of the cannon. airchamber : 2 1/2" 50cm galvanized pipe barrel : 75mm pvc PN16 1m long valve : 2" piston valve with 5/4" seat piloting valve : 3/4" ballvalve A week ago I ...