this is my second Air gun let me know what you think, and any improvements i could give my next one
the Barrel is a .40 cal blow gun with a PVC sleeve to screw into the valve and to make it easyer to detach
the chamber is 30 inches of 1'' PVC with 110 PSI according to GGDT it goes 200-750 FPS depending on the ammo if anyone wants it ill toss up the GDT file
Posted: Thu Sep 10, 2009 11:07 pm
by noname
Nice and simple, yet very functional. I like it.
Looks comfortable enough to hold and shoot as well.
Posted: Thu Sep 10, 2009 11:17 pm
by geardog32
looks like a fun little plinker. very clean, good job.
Improvements? a piston valve would be an improvement on your next one. they are ALOT more powerful.
Posted: Fri Sep 11, 2009 12:28 am
by Northir
ive been having trouble finding a piston valve i can understand their probably easyer to make than they look
Posted: Fri Sep 11, 2009 12:44 am
by spudtyrrant
Northir wrote:ive been having trouble finding a piston valve i can understand their probably easyer to make than they look
yea ive seen that one, still a little confused, will probably just go for it and see how it turns out, one thing i really like is my option to take the sprinkler valve apart if i need to, it seems like once you seal up a piston valve its stuck that way
Posted: Fri Sep 11, 2009 1:22 am
by FORE!!!!
Northir wrote:yea ive seen that one, still a little confused, will probably just go for it and see how it turns out, one thing i really like is my option to take the sprinkler valve apart if i need to, it seems like once you seal up a piston valve its stuck that way
go for it dude,its trial and error and when you nail it you will be as happy as larry,then once you get the concept of building one downpat and it successfully working ,it bet you start to wonder around the house to see what you can turn into a piston valve,atleast thats what i did..
quote"it seems like once you seal up a piston valve its stuck that way"
not if you use threaded fittings
Posted: Fri Sep 11, 2009 1:46 am
by Northir
Atempting to come up with a shopping list so i can get all my peices in one trip to the hardware store what do you think i would need, id like to try and stick to the way a sprinkler valve connects a straight through i think a T heres a link that im lookin at http://shop.mccoys.com/Plumbing/Pipe%20 ... 20Fittings
Posted: Fri Sep 11, 2009 1:56 am
by FORE!!!!
not exactly pvc, but does this help...?
Posted: Fri Sep 11, 2009 2:07 am
by Northir
that helps a lot Epoxy will work the same as hot glue?
and metal and PVC can connect to each other?
Posted: Fri Sep 11, 2009 2:42 am
by FORE!!!!
yes epoxy works good and of course pvc and metal can connect together ,just make sure when screwing the fittings together not to cross thread the pvc fittings,use a thin layer of teflon at the bottom of the thread and work your way up making it thicker at the top... 8)
Posted: Fri Sep 11, 2009 9:44 am
by geardog32
FORE!!!! wrote:it bet you start to wonder around the house to see what you can turn into a piston valve,atleast thats what i did..
haha thats exactly what i did. my girlfriend thought i was crazy because i was running around the apartment with a tape measure.
Posted: Fri Sep 11, 2009 10:34 am
by Hubb
geardog32 wrote:
FORE!!!! wrote:it bet you start to wonder around the house to see what you can turn into a piston valve,atleast thats what i did..
haha thats exactly what i did. my girlfriend thought i was crazy because i was running around the apartment with a tape measure.
I bet that would have been fun to be a fly on the wall. The funny thing is, I can relate. My woman has gotten to the point where she doesn't even ask anymore.
As far as improvements, I've put together some e-books that will be able to help with a lot of general questions. The links can be found in my sig.
Posted: Fri Sep 11, 2009 10:16 pm
by Northir
well went to Homedepot today, and they didnt have shit for parts, they had about half of the stuff in that video, and i couldnt figure out how to make a 1" out of PVC, i think i need make a 2" pvc one, my next build is going to be a golf ball cannon and my dead line is Saturday night
DLing Hubbs tut now
Posted: Sat Sep 12, 2009 11:01 am
by jhalek90
Go back to home depot.... and make a 1'' piston valve.
Use a 1'' wood dowel for the piston.. and some rubber from an extra boot for the sealing face... thats what i did... apart from the boot.. lol