So just because a ram passes gas it shouldn't be tested - that is quite frankly idiotic. And dont give me that rubbish that these are toys etc because they are not - a macho stance is great until it explodes in your face and wounds the guy standing next to you.

It makes me sad to see that in the seven or so years that we have been away, things haven't changed at all. This is on par with the 10 bar rams that were according to some 'fine on FP'.

Quote Originally Posted by davet123
all the important parts will be tested with paper work
If you are going this far, why not bolt the system together - plug the ram & vents and get a system test done? I.e. do it properly

Quote Originally Posted by xtreme
If you actually go back and read my earlier post on the last page I said if sombody wants to test it they can
If you built it then it is your responsibility to get it tested - no mine or anyone elses.

8mm wall is nothing special, it might be fine, it might not - it all depends on the relationship between the inner diameter, materal strength, wall thickness and design pressure. Do you have 8mm on at least one side of the tapped holes in the bottom of the ram cylinder or 8mm with the tapped hole? I'm assuming you have checked that your end plates won't buckle from the pressure too? Might be teaching you how to suck eggs but flat plates are very weak when compared to cylinders.

The rules are as clear now, just as they were when we started building these things an age ago. Custom or modified components should be tested. In our first incarnation we had a 95% custom system including the gas bottle, the only off the shelf items were the pipes - it was all tested. We had the tech checkers at RW in a right state as they'd never seen anything like it.

But lets scrap the rules all together - balls to it. Obviously the rule writers were out to spoil our fun and didn't give a damn about our safety! Argue the toss if you like because clearly I don't know what I'm talking about! :x

I hope this does bring in a swathe of pressure test cert checks - because from what you're saying we'll be one of the few pneumatic bots out there who has one :blush: