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My grinder in a box (GIB) should be waiting for me when I get home tonight. It’s one of the 2 x 72” kits. I’m hoping to get an idea from some of the experienced knife folks out there as to what motor may be appropriate in terms of hp and RPM. I had initially settled on 2 hp and 3600 rpm with a VFD speed control, but in reading the various forums some comments made me re consider this decision. Some folks pointed out that with the VFD, if you are running at 50% speed your torque is substantially reduced as well. This is something I am currently researching. They also pointed out that running at less than full RPM; the fan won’t be cooling as efficiently, leading to potential motor overheating issues. I’m new to knife making but not too mechanics so I realize there are choices you can make in terms of drive pulley diameter to change belt speeds as well, but I haven’t found any sort of chart that spells out appropriate surface footages etc. for the different grit belts so I can better bracket in my desired speeds. Any comments or suggestions from the more experienced folks would be much appreciated so I can get the appropriated drive parts on the way. I've found little bits and pieces on my research, but nothing approaching any sort of consensus (not that I expect too with this crowd) Thanks Brian