This is a custom designed and built steel pier with wheels.
6" diameter, 1/4 wall column
10"x3/4" top plate drilled and tapped with a central hole, and three surrounding holes
Base plate is a triangle with 33" sides by 1/2"
At each corner of the base plate is a heavy duty, 3/4" screw jack to raise the pier off the wheels for a rock solid mount.
The entire unit is very heavy and suitable for a large instrument. The perfect solution of vibration free observing or CCD imaging. The unit could also be installed in a permanent observatory on a concrete foundation.
This unit is too big and heavy to ship. It needs local pickup, or I could meet you halfway some reasonable distance to the SF Bay Area.
I am asking $250 for this. Thanks for looking...Ken