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Posted: Sun Oct 28, 2007 1:37 pm
by MrCrowley
Looking good, the only problem I can see is that you may have a problem piloting it, as the back half of the piston doesn't look very tight and you could lose a lot of air that will leak behind it when trying to pilot the pilot volume.
markfh11q wrote:M6 means it's rated to 6 mPa pressure, right? I'm not too buffed up on international standards at the moment.
I wish, 6mPa would mean it's rated to 60BAR which is 870PSI
10BAR = 145PSI = 1000kPa = 1mPa = 1,000,000Pa
Posted: Sun Oct 28, 2007 2:03 pm
by sandman
oh noes your running vista
but nice piston valve, i like to see wood pistons
you know your piston will work better if you get a mac
Posted: Sun Oct 28, 2007 2:04 pm
by spanerman
naa nothing works when u buy a mac...not even your arms
Posted: Sun Oct 28, 2007 2:10 pm
by sandman
then i should be completly paralized as i have 4 macs
soon to be 5
but once was 6
Posted: Sun Oct 28, 2007 2:24 pm
by MaxuS
Vista is crap, i wish i stuck with Xp.
@MrCrowley - It is a good tight fit at the back because the back of the wooden piston's edge is curved and so sits very well in the pilot/fill spigot and the yellow crap (whatever it is) sits nice and snugly and forms a great fit inside the entrance to the spigot, so i wont be venting the chamber volume.
Posted: Sun Oct 28, 2007 4:04 pm
by mark.f
@MrCrowley and Gepard:
I'm talking about the tensile stress the connector can handle. I guess when I said "pressure" it was a misnomer.
MaxuS, what company did you get your computer from and what version of Vista did you get with it?
HP with Vista Premium and I haven't had a problem. It even lets me run OpenSource programs!
Posted: Sun Oct 28, 2007 4:16 pm
by MaxuS
I have Vista Home Premium and its from Compaq, some programs like Excel and Calculator dont work, they never have. And the DWM takes up like 30% processor memory!! Sodding ridiculous.
Posted: Sun Oct 28, 2007 4:20 pm
by jrrdw
veginator wrote:Thats what he is saying that it will swell to the pipe size and get it self stuck in there.And let me tell you having to service it with all the pressure inside wouldn't be fun.
Yea, i know what he ment. Looks like he used 2 pieces of plywood. Different then mine, lighter.
Brfore o-rings --
Posted: Sun Oct 28, 2007 4:42 pm
by MaxuS
Yeah, I made mine into two faces to make it much lighter, it'll slide with the greatest of ease now, while still retaining a perfect fit. It'll seal even if I blow through the chamber port.
Posted: Mon Oct 29, 2007 3:57 am
by mtronic
wow, very nice mate
I was trying to build one out of wood but gave up because I couldn't get the lengths right
Your piston has inspired me
Posted: Mon Oct 29, 2007 11:16 am
by MaxuS
Thanks
If you use two pieces of wood with a bolt in between, you can adjust the distance between them and so make the piston longer or shorter.
Posted: Mon Oct 29, 2007 6:44 pm
by mtronic
Thanks
my problem was the width of the peices I was useing. I'll go back to the drawing board when I finish my new cannon that I'm working on. Thanks for the tip.