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3Faze
Joined: 26 Jun 2004
Posts: 99
Location: Lincolnshire, UK
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OK... I make no secrets about not being a pneumatics expert, but I'll do what I can.
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1. Do we follow the FRA rules to the letter? If not what are the OZ rules regarding pneumatics?
In interests of safety, I'd reccommend it. Sure, you can build a perfectly safe (well as safe as a bot gets) system in other ways, but the high standard of the FRA rules means that there is a fair margin for ****ups and a standard to check to.
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2. I read somewhere on the internet that someone convertered an old car boot gas strut into a cheap air cylinder. Do you think it is possible & has anyone done it here in OZ? What about converting a car shock absorber?
Tried the boot strut, it didn't really work that well. Why not use a bike/foot pump?
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3. Which gas would you recommend? Air would be the cheapest, any air compressor can fill the tank. What are the down sides with using air?
Air is a perfectly good gas to use... but CO2 is so much better on account of it's explosive expansion properties (800x in a fraction of a second is a figure I've heard bandied about). On the flipside, air is so much easier to work with.
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4. What would be a good tank, that is easiy to refill? I thought of brake resivour off a truck? What about manufacturing your own for low pressure (50psi)?
For 50psi - plastic coke bottle! Otherwise, sodastream bottle, fire extinguisher, various gas reservoirs for hobby use (try a company called Robart).
If you guys like, I'll see if I can get Mario DeJongh to look by, he's pretty much the unfreuted expert in these things in Europe (he built Gravity's flipper).[/quote]
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Fri Jul 02, 2004 3:40 am |
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