A derivative of the PCB Gator Vise and Hobby Clamps http://www.thingiverse.com/thing:12616

This one has been modified so that it will print on a TOM and will hold circuit boards in such a way that you have better access to the edges of the board.

Clean your platform well then print it. Acetone (nail polish remover) works very well.

I use 1 extra shell and 50% infill.

Assemble.

Obtain a "Helping Hands" from HF or other source and replace one of the alligator clips with the PCB Vise. http://www.harborfreight.com/helping-hands-319.html

Wedge2 is the standard size. Both smaller and larger wedges are included in case your tolerances are different than mine.