I got this idea from a woodworking magazine.
It was supposed to be turned but I changed it to CNC.
It is double sided,locating holes are drilled deep enough to go into spoil sheet, then 6.37mm (1/4") dowels can be inserted after work has been removed and then replaced accurately.
Attach 4 small rubber feet to the bottom.
It is done in Aspire4, please contact me if you want a different format.
TrivetJoinedLargeRingsUp.jpgTrivetJoinedSmallRingsUp.jpgTrivet.zip
Have fun