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Posted: Thu Mar 15, 2012 1:23 am
by jackssmirkingrevenge
POLAND_SPUD wrote:an aircylinder can solve all your problems
... even if your problem is an unsatisfied partner, if copulatingmachines.com is anything to go by

Posted: Thu Mar 15, 2012 1:49 am
by Petitlu
you're terrible!

Posted: Thu Mar 15, 2012 2:17 am
by jackssmirkingrevenge
Merci, je fais de mon mieux

Posted: Thu Mar 15, 2012 6:28 am
by Petitlu
Posted: Thu Mar 15, 2012 7:52 am
by pneumaticcannons
damn man, you really do work fast lol.
Posted: Thu Mar 15, 2012 9:32 am
by Petitlu
thank !
Holy shit!
2 hours in the sun to try to get a shot at MIX10! and NOTHING!
I tested everything, Air BP before, otherwise, ignition cylinder, direct and son by anything ...
I withdraw the chamber, I look if the piezo walk and it works good I ever did three tests and still nothing ....
I imagine it is not a piezo rabbit poop!
I buy from a flash kodac, chocolate and canada dry!
I really balls ...
Notice the order of mixing:
When I purgeais the chamber, the smell of butane was stronger when I put this one first ...
Posted: Thu Mar 15, 2012 9:52 am
by POLAND_SPUD
even if your problem is an unsatisfied partner, if copulatingmachines.com is anything to go by
I knew you'd mention your favourite website.
you're predictable
damn man, you really do work fast lol
yeah
When I purged the chamber, the smell of butane was stronger when I put this one first
Did you include the volume of tubing in your calculations ?
Did you purge the tubing ?
Edited by btb.
Kids read this stuff.
Posted: Thu Mar 15, 2012 11:01 am
by Petitlu
yes and yes!
by cons, the flexible chamber is very narrow (flexible paintball), may be ensure mixing hurts when I put the air first, when pressure equalization ...
Posted: Thu Mar 15, 2012 11:15 am
by jackssmirkingrevenge
Oh noes... troubleshooting time.
- are you sure youre getting good spark even when it is set up (meaning there are no grounding problems)?
- is your spark gap 1mm or less? With a low energy piezo this is essential.
- are you sure the disk material you are using will burst at the pressure which the ignition will generate? I found it's very possible to have the mix ignite and the disks to remain intact if too strong.
- are you sure the chamber is 100% airtight? Even a slight leak (from the burst disk for example) can be enough to throw your mix off.
Posted: Thu Mar 15, 2012 11:26 am
by Petitlu
I removed the chamber and the spark was done but in my opinion not to MIX10 ...
my spacing is 1 mm
I tested the disc under 40bar! all sealed, and the manometer not drop. Whenever I have purged the chamber it was unburned gas.
I tested under 50bar chamber, it is waterproof
I think it comes from the BBQ too weak to MIX10
Posted: Thu Mar 15, 2012 11:37 am
by jackssmirkingrevenge
Petitlu wrote:my spacing is 1 mm
Can you make it smaller? I usually make it less than 0.5mm, and with a cigarette lighter piezo I can ignite up to 16-17x, so if you're getting good spark I don't think this is your problem.
Did you calculate the volumes accurately? Propane and butane have a notoriously narrow ignition range in terms of percentage concetration so the correct mix is crucial.
Posted: Thu Mar 15, 2012 11:44 am
by Petitlu
I can not make it smaller ...
for volumes, many with a precision manometer very accurate.
I followed your advice, 3.5% propane / butane
I still think that the problem is the ignition BBQ
I'm doing a flash ignition ...
Posted: Thu Mar 15, 2012 11:47 am
by jackssmirkingrevenge
can you try a lower mix, like 2x?
Posted: Thu Mar 15, 2012 12:00 pm
by Petitlu
2x:
Air: 1.13 bar
bp: 0.6 bar
manometer reading: 0.6-1

Posted: Thu Mar 15, 2012 12:02 pm
by jackssmirkingrevenge
Right of course.
5x?