cheaper than wheels ?
The price looks cheaper than buying a set of wheels. If you need a larger one you could always build a larger heavier frame.It will probably work for making patch panels. I took a class from Ron Covell a few years ago and he said the E wheel frame DOESN't have to be super ridgid- strong, that most of the time you don't want to use a lot of pressuer or you will get tire tracks in it. HF sells cheap lasers, mark a grid on your part then watch the laser to get an even tilt each pass.