laminate surface
Have you tried double sided carpet tape ? It works pretty well for most small parts, but you may want to clamp a piece of 3/4 inch laminated counter top material to your table and then tape to laminated surface.
2x tape on Trupan or MDF does not hold as well, plus you have a laminated work surface you can toss out after a while.
The decimal point seems to be the most important on the z axis... x & y not so much....
ShopBot... Where even the scraps and things you mess up and throw away are cool....