Help with Pneumatics

[maddox]

Help with Pneumatics

The forces on a ram that uses the classic system are more than large.
And every weightincrease to beef up the arm makes it worse.

There is a simple solution, and is to lower the moving weights acting on the ram.

[defyer]

Help with Pneumatics

To all, I guess the news travels fast across the pond, its TRUE i blew my rams justas I was getting ready for my fight. Because we didnt have the correct electrical firing switch I had to mod a servo and a standard fog light switch to fire my intake valve, and the second servo fired the exhaust, anyway my I powered the bot and as I open the air tank mike switched on the transmitter and boom, the ends blew with a huge bang.
What happened was as he switched on the radio the servo activated the switch which in turn opened the valve and as I opened the air tank I discharged 2000 psi into my rams......
The force ripped of the heads and cumpled the cross support inside the bot, the whole thing jumped a couple of feet in the air, any way by the time every one came running I was seen kicking the s**t out of the robot. but we continued with the battle and took LNW the full 3 minutes.

[defyer]

Help with Pneumatics

Forgot to mention the rams were rated for 250 psi, we had been running them higher with no problems, guess they didnt like that high.... LOL

[woody]

Help with Pneumatics

Bimba Rams?
What happened was as he switched on the radio the servo activated the switch which in turn opened the valve and as I opened the air tank I discharged 2000 psi into my rams......

Ummm .......how? .......your build pics and specs show that your running pressure regulators!


(Message edited by woody on July 30, 2006)

[Mouldy]

Help with Pneumatics

Did you have a Low pressure relief valve fitted?

[woody]

Help with Pneumatics

Martin,

I know this is only your second year running bots? ...There are however a number of very worrying points raised ... not only by your robots pneumatic construction ... but also by the fact that it passed tech check and was allowed to compete!
Your rams are rated @ 250 psi NOT 1000 psi or 2000 psi.
Your powering up procedure .....firing mechanism and failsafe ....... need sorting!

Sorry to say this....
Get some expert help from someone before you kill yourself or someone else.

Regards Woody

[maddox]

Help with Pneumatics

Woody, Im understanding now why the RFL is not keen on seeing pneumatics.

Matin, Leo and I have to agree with Woody...