territorialmillworks Posted March 24, 2013 Share Posted March 24, 2013 I recently salvaged a 3.5 hp treadmill motor that I intended to put on my mill. But when I looked around the shop, I had most of the materials for a sander...,bearings,spring, knobs, handles, 80/20 extrusion, aluminum base plate. All I needed was some round bar for the drive and tracking pulleys and a controller. The KBMG-212D driver cost $145 but was worth the money. It allows for load matching of the motor amp rating and a trimpot adjustment to limit top speed/voltage and it adjusts the amperage to match the load when sanding/grinder to maintain speed. Things I learned: Read the directions- fuses go on the DC output not the AC input. Who would have thunkit. Treadmill hp ratings are exagerated 40+% which is what allowed me to use this 2hp controller on a 3.5hp motor. Mount the pulleys on a mandrel inorder to turn the 1deg crown. Yes, it took me a little while to figure that out lol. Quote Link to comment Share on other sites More sharing options...
monstermetal Posted March 24, 2013 Share Posted March 24, 2013 very nicely done.. Quote Link to comment Share on other sites More sharing options...
Solano Posted March 24, 2013 Share Posted March 24, 2013 Nice work. Quote Link to comment Share on other sites More sharing options...
windancer Posted March 24, 2013 Share Posted March 24, 2013 Good job! I have one of the first from Rob, a KMG1 and can easily see the similarities. Tough machine. Dave Quote Link to comment Share on other sites More sharing options...
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