qev and slide valve semi auto?

[Goats spudz]

Hey jsr on your popoff and slide-check are they 1/4" bsp?

the thread is a 1/4"pipe thread.

id say so

BSP or NPT?

[jackssmirkingrevenge]

BSP or NPT?

My fittings are BSP, can't say how it fits with NPT.

QEV arrived today, very smart and chamber/pilot threads are perfectly compatible with the other fittings I've bought, which makes them 1/4" BSP.

The "barrel" end as far as I can tell is 3/8" BSP.

I'm going to make a small chamber and have some fun with these parts, if all goes well I'll do a little Volkshalbautomatische write-up

[wyz2285]

good for you jack
that qev looks really simple

[warhead052]

Jack, if you don't mind my asking, can you measure the dimensions of the qev? Like the width, height, and length?

[jackssmirkingrevenge]

that qev looks really simple

Aren't they all

can you measure the dimensions of the qev? Like the width, height, and length?

It's all in the specs:

Product Name: Quick Exhaust Valve
Model: QE-02
Gold Tone Port Diameter: 16mm/ 5/8"
Inlet/ Outlet Ports Diameter: 12.5mm/ 1/2"
Flow Medium: Air
Operating Pressure: 0-0.8 kgf/cm²
Working Temperature: 0 - 60°C
Total Size: 52 x 36 x 28mm/ 2" x 1.4" x 1.1" (L*W*T)
Main Material: Aluminum Alloy
Color: Black & Gold Tone
Net Weight: 105g

[warhead052]

Awesome, thank you jack!

[POLAND_SPUD]

ohh btw I wasn't joking when I suggested machining a T with an inbuilt air cylinder for it... if you think of it all you need is a brass rod with 4 ports cut in it (barrel + valve + magazine + aircylinder supply port).

[jackssmirkingrevenge]

What would the air cylinder to, cycle a bolt?

[POLAND_SPUD]

What would the air cylinder do, cycle a bolt

exactly

now that you have a lathe you can probably make this fairly compact... if you're not convinced yet... think of it - it would require machining

[jackssmirkingrevenge]

... but the idea here is to show that something can be made without machining I even cast the chamber endcaps out of epoxy!

[POLAND_SPUD]

ohh I see...

well you can still machine one for yourself.. or just build one out of standard fittings

[jackssmirkingrevenge]

Something along those lines is in the works, it's a bit far from coming to fruition though.

[Gun Freak]

Lol he never builds for himself, he's our experimentalist

[jackssmirkingrevenge]

For science!



The chamber is curing in the lab oven as we speak, hope to give the setup a go this evening.

[MrCrowley]

The chamber is curing in the lab oven as we speak, hope to give the setup a go this evening.

Two questions (one of which is in two parts):
1 - How hot, how long?
2 - How much curing time do you save?

I'd love to reduce curing time for epoxies but seeing as you don't do it at home, you either don't own an oven or a conventional oven is not appropriate.