What do you have your benchtop cnc routers sitting on?
I have ordered a desktop cnc router, about 28 x 28 overall dimensions and 70 pounds. It is made mainly of alluminum. I was planning on just putting it on a flat, sturdy workbench. The machinist, were I work during the day, said it should be on a 300lb "tool" granite top for flatness and stability. That seems a bit extreme to me. Supposedly, the machinist had problems with a similar router being inaccurate on a standard commercial workbench.
What do you guys think?
Have your workbenches/tables caused any problems with cnc routers?
Thanks
Tim