CNC Basic Table Clamps, Fix for Objects

I needed “side clamps” to fix the item on a CNC Table.
So I inserted M6 Nuts into the underlying wood and fix the item with adjustable clamps:

3 parts needed for each clamp:

Arm with rim fixed with M6 Screw
Ramp to adjust the high of the Item
Adapter to connect Arm with ramp.

Additional I used a washer and 2 nuts per clamp.

This works fine for me also for bumpy surfaces.