PMHL by Airpress (Pressure Metered Hybrid Launcher)

[Petitlu]

Ignition: flash + ignition coil is very good, I use it for my hybrid Mix40.
I will test several ignition systems and I found a tazer to 2.6kv 15usd for on the net!
Be careful with the tazer, it hurts!

[airpress]

Thanks mr crowley!

I get myself some coaxial cable.
Here's what i made. I epoxied the cables inside a 1/2" fitting. If the moments comed to replace the cables or something I can replace it easy.

Cable:


1/2" fitting:


My manometers arrived yesterday!


More to come!

Edit 16/06/12 18:34

I've fully epoxied the cables that are inside the chamber.
The air was leaking through the wires.
Now the problem is solved.

Edit 17/06/12 10:45

Cables fully epoxied.

[airpress]

I'v mounted the ignition in place.
This week I will make a wooden stand for it.
When I have enough time this week, I will give it a nice paintjob.

Here some random pics.
I've already dry fired it. I works like a beauty.





Airpress

[Labtecpower]

looking good there

I hope you know that the copper barrel isn't very strong, MrCrowley had a failure with his barrel.

Maybe you can sleeve it in something to strengthen it.

[airpress]

Indeed, the barrel is not definitely. It just for showing.
The barrel that's on there is for my pneumatic bait launcher.

Edit: For this cannon I will use a copper barrel. But like you just said, sleeving in something else.

[Petitlu]

copper tubes are solid!
the Thorjack has one and I shoot at Mix40 ...

[airpress]

looking good there

I hope you know that the copper barrel isn't very strong, MrCrowley had a failure with his barrel.

Maybe you can sleeve it in something to strengthen it.

Wasn't there a small dent in the barrel when the accident happenend?

[jackssmirkingrevenge]

the Thorjack has one and I shoot at Mix40 ...

... sleeved in steel pipe

[Petitlu]

yes but I still shot at mix40 ....

[Labtecpower]

That would be the same as calling yourself bulletproof because you're behind a steel plate

900th!

[MrCrowley]

Wasn't there a small dent in the barrel when the accident happenend?

Yup, the small dent was caused by a projectile in a sabot. Make sure to check your barrel regularly and don't fire multiple small projectiles unless they are in a sabot which will survive intact inside the barrel.

[jackssmirkingrevenge]

900th

[airpress]

First of all. I've demounted the propane pressure regulator because I want it detachable.

I made a simple wooden stand. Maybe I will chance it. Not sure yet.
The used wood is Oak.


Cannon in "ground" paint



Cannon in first layer



I will put a second layer on it, maybe three. Then a clearcoat.
color is metallic deep grey or something.

[POLAND_SPUD]

I will put a second layer on it, maybe three. Then a clearcoat.
color is metallic deep grey or something

have you tested it ? you know if you have to tweak or fix something you'll have to paint it again

[airpress]

Yep, everything is tested!

I use a O ring to seal the burstdisk against the union.
I need to do a little bit more tweaking about the propane pressure versus 1 bar of air and 2 bar of air, and so on...

The 2 weeks coming I have not much time so the updating may go downhills. No panic, I will finish this cannon!!!!!!