Got a 4020HT with extended Z axis that I had to raise the roof to allow it to fit in the shop. Putting it on a 4 in slab, which I already know, might not be the best idea. Was considering a steel plate under the VMC when installed as a little insurance. Initially planning on 1/2 inch, but will probably go 5/8. Slab is not perfectly level, but in good shape. Manual says leveling pads are 52.5" by 28" so was thinking a 3x5 (60" x 36") plate would be appropriate, unless I am missing something. Was thinking about some rustoleum from the can on the underside and some epoxy to stick it to the floor prior to placing the machine. I know steel plate over concrete is not ideal, but was not sure of any other solutions. So, my questions would be 1) is a steel plate under the VMC a good idea? any better ideas? 2) if steel plate 1/2 in or 5/8? 3) any ideas on the treatment of the plate before placing it on the concrete (paint, epoxy bonding etc). Thanks in advance.
Fadal does not require any special foundation. The original leveling pads that fadal use to supply with the machines were just 3x3 1/2 steel plates with a Spot face to keep it under the leveling screws (that was along time ago). Now a days they were supplying these Cast Iron 3 or 4 inch dia,molded pads. So you could just grab some 5/8 or 3/4 inch thick steel 3 x 3 or whatever , .100 deep counterbore to keep the pad under the leveling bolt, and your good to go