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MrCrowleys GB cannon, Built by me, Update: Fixeded
Posted: Mon Sep 14, 2009 7:25 pm
by Northir
this is the golf ball cannon that MrCrowley shows you how to build in this instructiable
http://www.instructables.com/id/Golfbal ... That-Shoo/ i built it pretty close to the way he shows in his TUT with a few mods, i beleive i have a longer chamber and barrel, i can get it to shoot through 4 layers of carpet and 1" plywood, ill up more pictures and damage pictures in a little bit
Re: MrCrowlys GB cannon, Built by me
Posted: Mon Sep 14, 2009 7:33 pm
by Technician1002
Northir wrote: i can get it to shoot through 4 layers of carpet and 1" plywood,
Carpet is relatively wimpy. I was able to shoot a t shirt through 2 layers of carpet. The 1 inch plywood is impressive. Good job.
Posted: Mon Sep 14, 2009 7:35 pm
by jrrdw
How about a video? Would like to see it in action.
Posted: Mon Sep 14, 2009 7:47 pm
by MrCrowley
Looking good! Very clean also, would love a video if it isn't too much to ask haha
Posted: Mon Sep 14, 2009 8:05 pm
by spudtyrrant
Posted: Mon Sep 14, 2009 8:14 pm
by Northir
Heres some more pictures first is a comparison between all my launchers
Now Damage Pics!
Video of the cat litter canister soon, was filled with water(it was all i could get the wife to film -.-)
Edit: Here maybe. .
ill have to get more that one doesnt really do it justice
Posted: Mon Sep 14, 2009 8:37 pm
by THUNDERLORD
Looks like an awesome PVC cannon there!
Good job, nice damage pics.
BTW, Looks like a nice compliment for MrCrowley,
Also BTW, if you ever refer to his "Garage" It's "The Garage" with cap.s...
8)
Edited: (for schpellink).
Posted: Mon Sep 14, 2009 9:01 pm
by Northir
Posted: Tue Sep 15, 2009 7:21 am
by THUNDERLORD
Impressive shots in the vids,
(no sound on computer last night)
I can really see the advantage of piston valve over sprinkler valve.
Is the new piston much lighter than the wooden one?? 8)
Posted: Tue Sep 15, 2009 1:29 pm
by Northir
i think its a little bit heavier but the wood one was taking a lot of damage and was poorly built so i wanted to replace it, since i know what im doin now ill be playing with many different materials
Posted: Tue Sep 15, 2009 2:23 pm
by PVC Arsenal 17
Posted: Tue Sep 15, 2009 2:53 pm
by Northir
well Epoxy pistons work well, maybe to well, heres the damage shots for the new piston . . .
hmm somethin might be wrong. .
the piston shot back with about as much force as the golf ball ripping the back of the housing off with it, so how do i repair that, i was thinking just grinding the female coupler off and attaching a new one, and yes i had padding
gotta have it back up and running by saturday night so i think i have time, just not any more material
Posted: Tue Sep 15, 2009 3:34 pm
by dewey-1
You need to make that piston lighter!
What is the total weight?
You will also need more "cushion".
I am guessing the epoxy version is a lot heavier than UHMW or HDPE equivalent.
Posted: Tue Sep 15, 2009 3:43 pm
by Northir
yea it weighs about twice as much as the wood one
Posted: Tue Sep 15, 2009 3:51 pm
by spudtyrrant
yeah check out mine
http://www.spudfiles.com/forums/2-inch- ... 17878.html i had the exact same thing happen so i shortened the piston cut off the threaded part of the female coupler and used screws to hold in an o-ringed 1 1/4 inch coupling
p.s.: i used solid pvc rod for the piston so it should handle an epoxy piston no problem
