i notice it in torque as with a little bit of pressure, I can stall the motors. But I am only machining wax. With a 48V PSU and the right resistors, I cant imagine what this sucker will do. As it is, I can go to 45,000 kernel speed and top out the motors in motor tuning. which is just under 3450 mm per minute and it will Rapid all day long. The video was run at 2000 MM per minute. My xylotex/maxnc combo will run reliable at 700 mm per min. But that is apples to oranges |