if you go with the drilled plexiglass, i suggest you get some/borrow vices to hold the plexiglass down for safety reasons. the 2nd tutorial link sounds a bit dangerous as they had no vice grips or clamps even metal vise grips with a strong shim to spread the clamp force evenly would be useful. their hole pattern s hold true, its just how they go about drilling them.
quote from petsmart link:
"i put both hands right next to the hole he was drilling and put almost all my body weight on the plexi so that it didn't crack.
Last edited by nel3; 01-16-2012 at 09:12 AM.