![\"IMG](\"http:\/\/www.corbinstreehouse.com\/blog\/wp-content\/uploads\/2018\/01\/IMG_0220.jpg\" "\\"IMG_0220.JPG\\"")
<\/p>\nThe 110v motor on my SouthBend 13\u201d tool room lathe from the 1950\u2019s is slowly dying. It stalls a lot, and I\u2019m forced to take really light cuts, even in aluminum. It slowly decreases speed after prolonged use and eventually stops. It also usually stalls on start, so I have to give it a starting spin by hand to get it going. I\u2019ve also been a bit unhappy about not having a precise speed control. So, it is time to upgrade! Here\u2019s the original motor installed and after I pulled it out:<\/p>\n
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![\"IMG](\"http:\/\/www.corbinstreehouse.com\/blog\/wp-content\/uploads\/2018\/01\/IMG_0223.jpg\" "\\"IMG_0223.JPG\\"")
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It is 1 phase 110\/220v Marathon Electric 1.5 HP motor with a 184 frame, wired at 110v; just rewiring it for 220v may have helped, but it is nearly dead. Here\u2019s a great site explaining frame sizes:\u00a0https:\/\/www.engineeringtoolbox.com\/nema-electrical-motor-frame-dimensions-d_1504.html<\/a><\/p>\n My goal was to upgrade a bit to a 2 HP motor and get a VFD. I wanted to get something with the same frame size of 184, in 2 HP, ~240 volt 3 phase, and around a similar RPM of 1800. I just couldn\u2019t find anything for a descent price; everything was at least $300 used, and skyrocketed up from there if it was new or surplus. So, I had to opt for a different size.<\/p>\n Eventually I stumbled across Dealers Industrial Equipment and ordered this motor: Marathon Electric\u00a02 HP, 1800 RPM, 230\/460 \u00a0Volts, ODP, 145T<\/a>; Only $120, and\u00a0I figured I can adapt the smaller 145T frame to work in my housing.<\/p>\n I got the cheapest 2 HP VFD, which also had a good price from Dealers Industrial at $173 on sale: TECO Westinghouse\u00a02 HP, 230 Volts, 1 Phase, IP 20, Teco, L510-202-H1-U<\/a><\/p>\n Toss in $79 for shipping and I\u2019m currently at $372.00 \u2014 a bit higher than my original goal of around $300, but it should be an awesome upgrade. \u00a0<\/p>\n I\u2019m also thinking of ordering a MatchTach tachometer<\/a>. This way I can actually see what speed the VFD is putting out; otherwise, I will have to guess…<\/p>\n Stay tuned for part 2.<\/p>\n \u00a0<\/p>\n \u00a0<\/p>\n \u00a0<\/p>\n \u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"