I finally finished converting my grizzly G3102 vertical mill this last weekend. It took me about 1 week to design and build the conversion once I had all the parts. This is my first milling machine and I have never touched a mill before, so this is all new to me. I manually milled all of the mounting brackets from aluminum plate that was precut to the approximate dimensions. I am using 2 640oz steppers and 1 1200oz stepper powered with 3 gecko 202's controlled with mach3. All I have to do now is to get some wire covers. So far everything works great and I have engraved my company logo onto some scrap metal to practice with feeds and speeds, but I am hooked now and cant wait to mill more complex parts.