Quote:
Originally Posted by kmcclary
stopping a cylinder in a mid-position, by plugging the vent port.
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No need to do that, see
This Post, COTS stuff that does that exactly. But see
Here, too to understand why you might not want to do this.
Quote:
Originally Posted by Nate Laverdure
Will it really work to "lock in" a vacuum seal on the inner tube, or will you have to constantly supply suction to maintain grip?
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You need to supply vacuum almost continuously, there is a certain amount of leakage. Also consider how to let it go... But, maybe you want to use a Clippard tank to store vacuum, this'll seal it in.
Don