I actually thought it would never work after I measured center of gravity but I have had great success with this round. The sabot system is short dowel wrapped in duct tape as the pusher plate and carved Styrofoam as the guides. I am firing this thing out of my 1.5" sprinkler gun.

Bump After a little bit of penetration testing, I have decided to fire my custom made round for distance. The problem I am having is that I do not know how to calculate the drag coefficient. I thought you guys might be able to help. The rod is 3/8" in diameter by 10" long with 3, 2.5" by .75" fins w...

A while back I ordered some nichrome for this exact same purpose. I do have to warn you though. It must be supported and not knocked around because when it is red hot it is very fragile.

Like Heimo said; it is very important to look at the bed, especially near the chuck because their may be a dip from excessive use. Also check the lead screw for wear.

While they may be asking a little much for it. I don't have to pay shipping and they have amazing customer service.

No, close though. More like a G0602 and some tooling.

Just to clarify I mean the the tool company. Even a 5% coupon could save me nearly 60 bucks so I really appreciate any help.

I know this may be a long shot but, I need your guy's help. I will be making a very large purchase from grizzly soon and was hoping someone here might have a grizzly coupon floating about. I have tried looking online but all their coupons are one time onlys and are all spent. I would really apprecia...

I would still take a look though. They carry a wide a variety of steel and iron pipe as well.

The rotary selector switch is just for "safe" "semi" "full". A circuit for bursts would be good though... A rotary switch with a 565 was how I* set up my repeater to get full/semi/3 shot and safe. I quite like it. *I do not dabble in electronics so I had to have someone else set up all my electroni...

The only problem is that nice steel pipes are mostly distributed by companies that are not interested in selling to individuals I would do some more looking online, Try speedymetals or onlinemetals, I was able to get a 18" segments of aluminum with .25" wall thickness for only $20 and that was 3.75...

ITWOST I got my 3.25" aluminum for my next hybrid and a 6ft barrel.

Yes, Propane is actually recommended for combustion guns.
edit: The best way to use propane in your gun would be to construct a meter to ensure consistent shots. Check out the how to section for tips in building your own

Isn't this a bolt action not a semi auto? In the video you seem to operate a bolt and there is no obvious autoloading mechanism.

@moonbog Yes, they work very well. The mini ones fit 1-1/2" pvc very well and they have pretty good range.