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BillC
07-21-2009, 08:33 PM
I just got one of those ultra flat super precise flat to .0000000000000001 granite surface plates from enco grade A no less 12x18,, well it look real flat anyway,,,is there a right way wrong way to mount on a stand? or to store for that fact? this is my first granite surface plate,,Thanks to all that reply.

PeteM
07-21-2009, 08:41 PM
Most quality surface plates have mounting pads or locations marked on the bottom. Don't know about Enco. If there are no markings, in a plate that small and for home shop use you could get by with something like a carpet pad underneath. You'll also want to build a cover for it.

BillC
07-21-2009, 08:45 PM
this just has 2 recess at each end mabe 1 1/2 x 1 1/2

Glenn Wegman
07-21-2009, 08:53 PM
Go to page 5 here

http://www.tru-stone.com/pdf/FedSpecGGG-P-463c.pdf

Forrest Addy
07-21-2009, 09:53 PM
Surface plates are ideally mounted on three points located underneath in accordance with FecSpec umpty-ump as in Glenn's rewsponse. Smaller surface plates will work just as well sitting on a piece of carpet. It will move a little but not enough to mess up anything sensitive.

Anyone wishing to mount a surface plate properly should follow the spec. If you wish to level it for convenience in set-up of stuff on jacks, build support jacks into the stand.You'd be well advised to locate stops in near contact with he plate corners on the end having a single support point. This keeps the plate from tipping if you happen to load it really - REALLY - assymetrically.