I have a question for the shop sabre guy, well Ben or Logan if you guys are monitorin

[skyguynca]

This is David from ASI.
I was going over the machine making sure all is going well since we got it working so well now. We are putting alot of hours on it.
Well I found one of the pneumatic tubes coming from the balance cylinder on the Z axis in the e-chain not connected. The other side is
connected to the 37 psi regulator.

Is this correct?
If so then it is a up assist and acts like a cushion on the down movements?
I thought you were using it as a weight counterbalance/assist for the Z axis
to help unload the servo so it was only working when going into the material.

David

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[rgh]

Not with SS, but I believe you are right. The cylinder is weight support for the spindle so the z motor doesn't have to carry all the load. I didn't like the line being open on the top of the cylinder (which is basically a breather) so I put a filter on it to keep the dust out.

[islaww]

David...
rgh is correct. The air cylinder (in position with the shaft end down) uses pressure to the lower port to counterbalance the weight of the physical Z components. Somewhere around "neutral buoyancy" is desired. This means that the effort to lift the Z mechanics would be very close to that to lower them.

The upper port on the cylinder should be vented to daylight. Using a filter (muffler) on the port is common, as is running a tube to a less dusty location. Assuming the regulator is set properly for your cylinder/spindle combination, you should be good to go.