Page 1 of 1
Syringe Coax Design?
Posted: Fri Oct 05, 2012 9:46 am
by lklaussen
Hey guys, I haven't been on here for a while! The other day I was designing a mini pneumatic around a syringe for a small size projectile like an airsoft or pellet.
How many PSI can you put in a standard syringe before it explodes?
I've attached a pic of my design drafted up in google docs.
Will it work? What are some ways to improve it?
Posted: Fri Oct 05, 2012 12:54 pm
by jackssmirkingrevenge
Here's one I had made a long time ago, with the seal inverted and made into a toolies valve, not something you want to take beyond 50 psi though.
Posted: Fri Oct 05, 2012 1:16 pm
by lklaussen
That looks awesome! I'll probably make one like that with one of my smaller syringes. What can I use to plug the end other than epoxy?
Posted: Fri Oct 05, 2012 1:27 pm
by jackssmirkingrevenge
You can machine an acetal endcap, cut an o-ring groove then drill and tap some radial holes so you can attach it to the syringe tube with bolts.
... or you can use epoxy
let's face it, if you're using syringe tubes then your resources are limited, therefore epoxy is your best friend
Posted: Fri Oct 05, 2012 1:59 pm
by lklaussen
That's true, but I am currently out of epoxy
Posted: Fri Oct 05, 2012 2:07 pm
by jackssmirkingrevenge
My first pneumatics were made with balsawood endcaps held together with this stuff: