so I made up some ice clyinders with baited hooks and weights and connected them to the fishing line and pumped it up to 80psi and fired it into the sea,prob went 100m. next ond I pumped to 90psi and fired it ,the line snapped and it went about 200m I was impressed.. must have bumped the blowgun bec...

all good .

What an amazing difference the blow gun has made.As soon as I pulled the trigger on the blow gun there was a hole in my plywood target (spud ammo).Took it to 70psi.Amazing power.

Thanks so much for your help.

watch this space

in the last picture the hole at 1 oclock should I have poxied that one?It joins up with a hole that runs to the exaust side of the bottom half of the valve.

ok so I now have modded the sprinkler valve from the side (leaving guide rod ect in place),1/2 inch thread into the side of the valve,got a 10$ blow gun,just waiting for the epoxy to harden.
heres some modd pics

heres another

heres a pic

well well well this thing sure has some grunt!!!! took it up to 50psi first then a few at 80psi. It was pretty crap using the solionoid powered up but when I (by accident) turned by hand the solioniod it was very impressive,so not sure if the solionoid is too slow and me turning it is quicker. It to...

sweet I was thinking I would be there for ages,going to chuck a spud in it in a couple of hours....

foot pump that goes up to 100psi on the dial.Its a double barrel foot pump and it didn't take long to pump up a bike tire to 60 psi.
Got to wait till later on today before I can pressurise the launcher as the glue needs 24hours.

Next mission is working out a sabot for the fishing rigs ect....

Thanks so much, it will make it easier to transport with being able to screw the barrel on site with out shagging aroung with thread tape,
just hope its not going to take too long to pump up the 116 cubic inch chamber

so ive put it all together,found some pressure rated parts 2x45s and a 90 deg so the pressure now does a 180 deg turn.

wait ing for the glue to dry 24 hours.

1.4m long chamber and a 1.7m long barrel.

I wont need to put tape on the thread where the air leaves the valve will I?

Photos coming.

thanks.I am going to build it un modded and see how it goes for a start.

Today I bought 3 meters of pn12 pressure pipe and some pvc glue and a pressure rated end cap and two couplers for 70$.
Also got a bike valve rated to about 90 psi .
How many posts do I need to have before I can put a picture up?

my sprinkler has a guide rod held in place in conjunction with the flow control,so if I remove the flow control winder the rod has no way of centering... Has anyone come across this set up? I was thinking of leaving the flowcontrol and rod in place and allowing max flow with the adjuster and side ve...

sounds good,powerful is what I am after.Im wanting to cast a 5 oz weight at least 200 m (220 yards). the sprinkler isn't straight through , the flow goes up to the diafram then out. So if I make a chamber about 35" out of 1 1/2" and the barrel about 45" out of 1 1/2" I should be in the money. A lot ...

thanks im working on it. I managed to score a 1 1/2" hunter sprinkler valve for 20$ and two 1 1/2" connectors for 2 $ (pn 18) which is so cheap for new Zealand. Ive pulled it apart and its got a rod running down the centre for the flow control ,so need to watch a few more vids and threads to work ou...