LOL! That was probably the best home made launcher vid ever!

Nice clean job. Its amazing how similar this is to the piston that I put together for my hybrid project, except that mine is a chamber sealer that is blown open by the combustion. Its interesting to see how two independent ideas can come out so much alike.

Great work! Now slap a golf ball barrel and a coat of paint on it. If you think spud damage is cool wait till you see what one of those little white pockmarked balls does!

Very clean. I think that was the nudge I needed to get my half done hybrid finished.

According to HGDT my golf ball combustion is generating around 80 psi chamber pressure and 625 ftlbs of muzzle energy a bit past what your laws may tolerate. Thats just a 1x combustion. Is your law regulating chamber pressure or force generated by the projectile?

I have cut and threaded a few torch heads using a chasing die. The die cost 5 bucks and does a very nice job. Also, due to the regulator failures that plague me I no longer use one. I use a gauge on a T fitting just before the meeter. I just open the tank valve until I hit the correct pressure then ...

I just gave the Harbor Freight another look, they are claiming 1.4 lbs.

Dang, a bit on the heavy side.

I would say get one of these little guys http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=4077 and figure out a way to hook up a blow gun to it and it is only $8 couldn't hurt to try and it is less then 2 pounds Has anyone ever used one of these little compressors? I have some inter...

Sorry to kick up an old thread. I am still having problems with the Husky regulators. Am I the only one? The regulator in question was working great for a wile then it craped out. It will vent any propane entering it to the outside no matter what the pressure is supposed to be set at. On the other h...

I love it! I love everything to do with zombie moves and the like. My wife and I even have a pair of Mossberg 590 shotguns setup for an anti zombie mission (just incase, you never know what will happen)

SpudFarm wrote:one more tip if you can find the pipe, on my hybrid i used 50mm (almost exactly 2") hydraulic high grade steel pipe as barrel, it has a ID that is so perfect for golfballs that it is almost scary.

Any good source for that type of pipe aside from McMaster?

I somehow never noticed that on Fear. Sleaved sdr-21 it is then. That makes me happy because I think I have all the fittings kicking around!

I have read that thread and may go that rout, but I am trying to keep costs and weight down. This is not going to be some monster hybrid. I am trying do get similar performance as my 9ft long advanced combustion from a smaller package. At the moment theoretical chamber volume is only about 38 cubic ...

I have been running some numbers on HGDT before I build the chamber for my new project. I would like the gun to fire golf balls at 4x and be hand held. At 4x for my theoretical chamber size HGDT is showing 102.6 psi max barrel pressure wich is inside the rating of the sdr 21 and sch 80 I have on han...