Page 2 of 3
Posted: Fri Jun 15, 2012 1:07 am
by 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!
Posted: Sat Jun 16, 2012 7:13 am
by 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.

Posted: Sun Jun 17, 2012 1:41 pm
by 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
Posted: Sun Jun 17, 2012 1:54 pm
by 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.
Posted: Sun Jun 17, 2012 1:56 pm
by 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.
Posted: Sun Jun 17, 2012 2:08 pm
by Petitlu
copper tubes are solid!
the Thorjack has one and I shoot at Mix40 ...
Posted: Sun Jun 17, 2012 2:24 pm
by airpress
Labtecpower wrote: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?
Posted: Sun Jun 17, 2012 2:25 pm
by jackssmirkingrevenge
Petitlu wrote:the Thorjack has one and I shoot at Mix40 ...
... sleeved in steel pipe

Posted: Sun Jun 17, 2012 2:28 pm
by Petitlu
yes but I still shot at mix40 ....
Posted: Sun Jun 17, 2012 2:34 pm
by Labtecpower
That would be the same as calling yourself bulletproof because you're behind a steel plate
900th!
Posted: Sun Jun 17, 2012 5:25 pm
by MrCrowley
airpress wrote: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.
Posted: Mon Jun 18, 2012 2:24 am
by jackssmirkingrevenge
Labtecpower wrote:900th

Posted: Fri Jun 22, 2012 12:19 pm
by 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.

Posted: Fri Jun 22, 2012 12:34 pm
by 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
Posted: Fri Jun 22, 2012 12:36 pm
by 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!!!!!!