Members LumpenDoodle2 Posted October 24, 2016 Author Members Report Posted October 24, 2016 6 minutes ago, hackish said: Sometimes threads caught on the motor shaft can cause your power reduction. Since they're brushless, the motors don't electrically "wear out" unless you started overheating the heck out of them, but in that case, usually the driver will give up the ghost in a smelly cloud of smoke. Many thanks for replies folks. Hakish, this motor cane from a well used and abused machine, and whenever I try to sew something thicker than a couple of millimetres, the motor makes slipping sounds, stops working, and I get an error message which apparently means low voltage. Quote “Equality? Political correctness gone mad, I tell you, gone mad!!!! Next they'll be wanting the vote!!!!! “. Anger and intolerance are the enemy of correct understanding
Members hackish Posted October 24, 2016 Members Report Posted October 24, 2016 The two I have are the sewquiet 5000 and consew premiere csm 1001. You get what you pay for. If I thought there was any money in it I'd design a proper controller for these things. If you're getting a low voltage error then maybe the wiring to the motor has become worn or the plugs are dirty. You should be able to test the resistance of the motor coils to narrow it down as well. Quote
Members TinkerTailor Posted October 24, 2016 Members Report Posted October 24, 2016 How overloaded is the circuit the machine is on? An overloaded circuit will brown out and drop voltage. Have you tried the motor on a dedicated plug to be sure you don't actually have low voltage coming from the wall? It could also be that the motor is not powerful enough for how it is geared. If it has pulleys designed for fast speeds and you are running it slow into thick stuff, it may be running out of jam. A speed reducer will fix this, as will a more powerful servo motor. How many watts is the current one? Quote "If nobody shares what they know, we will eventually all know nothing." "There is no adventure in letting fear and common sense be your guide"
Members LumpenDoodle2 Posted October 24, 2016 Author Members Report Posted October 24, 2016 It's an Aerostar JM-811, 4,000rm, 750w, max torque 7.8n.m., and It was bahaving like this with the standard 50(+?) pulley. Quote “Equality? Political correctness gone mad, I tell you, gone mad!!!! Next they'll be wanting the vote!!!!! “. Anger and intolerance are the enemy of correct understanding
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