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PVC_01

Posted: Sat Jul 07, 2007 4:36 pm
by rednecktatertosser
STORY TOME!! This cannon is my 6th. I named it the PVC_01, which stands for Piston Valved Co-axail and the 01 cause its my first co-axail.

Specs:
Chamber- 1.5"x3'
Barrel- .75"x2.75'
Piston- 1.5" solid type II pvc rod bored out in the back for lowering weight
Seal- Shower/bath liner($5 for 5'x1')
Pilot valve- 1/2" ball valve
Fill valve- Schrader valve

BTW i just finished gluing this cannon about 10 min ago, and was feeling impatient(sp?) so i posted it, as a result, no damage pics yet.

That about sums it up. What do you guys like/dislike?

Posted: Sat Jul 07, 2007 5:03 pm
by mopherman
very ince. how are you going to searvice the piston? i would have use a metal ball valve though

Posted: Sat Jul 07, 2007 5:27 pm
by Big-mac
man thats nice. ur taking that to the TX meet arent you i bet that can do some serious damage. i forgot to say in the pm dont forget to take some pics at the meet sos i can see the fun im misssin

Posted: Sat Jul 07, 2007 5:45 pm
by lukemc
major mistake! you cemented the piston inside. and this means that when something goes wrong (which its bound to do) you cant fix it without cutting off the bushing. i would suggest change to a threaded adaper before anything realy bad happens. trust me itll be worth it in the long run

Posted: Sat Jul 07, 2007 5:58 pm
by origin unknown
Nice coaxial. If your launcher ever craps out on you, you can just cut the gun open and take the piston out and build a new gun with a threaded female adaptor, and a threaded male plug.

Posted: Sat Jul 07, 2007 9:04 pm
by rednecktatertosser
@Big-mac: yes i am taking this to the Texas meet. We will be sure to take lots of pics, and possibly some vids for all too see. Dont worry, we'll launch one for you! :wink:

Yeah, if anything goes wrong im gonna cun the end section off of the chamber and just glue a threaded adapter onto that, but like i said this was just a spare parts cannon, save for the ball valve. and I didnt think about piston service while throwing it together.

Posted: Sat Jul 07, 2007 10:06 pm
by Modderxtrordanare
This quote from a while back suits that gun just fine, since I couldn't find the one I was looking for. :(

jackssmirkingrevenge wrote:
Modderxtrordanare wrote:Dammit, you edited in some of your efficiency nazi'ism.
excuse the delay, I was still in shock from the enormous amount of wasted air, the pictures burnt my eyes :shock:

:P :wink:

Cut down on that pilot volume for Pete's sake. :wink:

Posted: Sat Jul 07, 2007 10:26 pm
by rednecktatertosser
LAWL!! yeah i coulda been better about that, well lets compare to your co-axial... OH wait... :wink:

Posted: Sat Jul 07, 2007 10:37 pm
by Modderxtrordanare
Same thing as an over under piston, and my over-under piston gun has less pilot volume than that thing. (When it's in proper working condition)


I originally thought you used PVC_01 because of this. 8)

Posted: Sat Jul 07, 2007 10:44 pm
by rednecktatertosser
Yeah im not gonna lie thats my paint scheme for this gun. then will come a renaming cerimony!

Same thing as an over under piston, and my over-under piston gun has less pilot volume than that thing.
Your piston gun is waiting for me to fix it in my garage. Right now it dont have a back plug so it has the pilot volume of the atmosphere.

Posted: Sun Jul 08, 2007 2:27 pm
by Big-mac
have you tested it today?

Posted: Sun Jul 08, 2007 9:14 pm
by rednecktatertosser
no I was too busy to test it today, now im home and cant find a bike pump so ittl have to wait till tomorrow.

Posted: Tue Jul 10, 2007 4:01 am
by spud yeti
looks like a pretty decent cannon. Well done!
btw, find your bike pump!

Posted: Tue Jul 10, 2007 2:13 pm
by rednecktatertosser
Well, i found my bike pump, but it started tarding out, and wont pump past about 20 psi, plus my parental units are too cheap to buy me an air compressor. so i have to wait till my neighbor is back to borrow his.

Posted: Tue Jul 10, 2007 2:49 pm
by Flying_Salt
Primer stains make me cry. I might go ahead and showcase my qev sniper today, even though I still can't get it to work...

Where'd you ge tthat confederacy flag? We should dress in gray and charge the north! (http://www.tv-links.co.uk/link.do/2/157/415/47653/69755 copy and paste it)

I like it, I've been too lazy/poor/inept to build a coaxial, but my next one will probly be one.