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Posted: Sun Nov 04, 2007 10:28 pm
by Ragnarok
I admit I'm looking forwards to building my automatic combustion BBMG plans, but that's because it's going to be pretty awesome (not to mention a world first if I'm not mistaken).

I've never built an automatic of any sort, or even a metered combustion, so it's going to be a new challenge. In fact, I've never even owned an airsoft gun before (although I wouldn't turn down the opportunity - damned VCR bill).

And I'm pretty pleased with how damn sneaky I've been with the plans.

Posted: Sat Nov 10, 2007 11:49 am
by POLAND_SPUD
I have one more question... Has anyone tried using a hydraulic QEV with air ?? Or at least do you think it would work ?? There are some hydraulic QEVs that are pressure rated for up to 630 Bar :shock: (and before you ask - I don't want to build a spudgun using 630 bar pressure - well at least not now)

Posted: Sat Nov 10, 2007 12:18 pm
by jackssmirkingrevenge
POLAND_SPUD wrote:I have one more question... Has anyone tried using a hydraulic QEV with air ??
Technically, all sprinkler valves are "hydraulic" valves and work brilliantly with air, so you should be fine.

Re that fridge compressor, I took one from an old fridge and it was shit, like a baby farting. Maybe that's why they thre the fridge away? :D

Posted: Sat Nov 10, 2007 12:26 pm
by windshrike
Actually, Rag someone did beat you to an automatic combustion.....now I am setting off to find the thread.....

EDIT: There you go :P

Posted: Sat Nov 10, 2007 1:16 pm
by POLAND_SPUD
I will try to write how to remove them and use them as compressors and put that in how-to section (but i am not promissing anything)...

One more thing.. you must remove the part that starts the compressor when temperature rises in refrigator - it is a small box with cables stiking out of it (sorry but expressing technical details in foreign language is more difficult than I thought it can be :roll: )

Here is a link to Polish site where u can see how to remove a compressor from a fridge/refrigator http://www.modelarz.one.pl/index.php?porady=kompresor (yes, it is in polish :D but you can use pics to get the idea how to do it)

WARNING These compressors usually don't have any pressure switches - they will pump as long as they are connected to the power - don't forget to add a pop-of valve or something similar. I've heard that it can pump to 35 bar (490 psi) and possibly even more

JSR - have you tried using your compressor to pump anything? or at least attaching a pressure gauge to it ? - these things have small flow but can give you high pressure - ideal for small sized chamber/high pressure guns - in fact the sound they make can be compared to
baby farting
so it is possible that your compresor is ok

Posted: Sat Nov 10, 2007 1:28 pm
by jackssmirkingrevenge
POLAND_SPUD wrote:JSR your compressor might be dammaged
I think so, is it meant to rattle? Something's clearly loose in mine :roll:

Posted: Sat Nov 10, 2007 1:40 pm
by POLAND_SPUD
When i try shaking mine it rattles too... try to attach air hose to it and see wheather it can pump to some pressure.