I have the 425 oz in motors from Xylotex pre-configured with Xylotex box and 1/8th micro step preconfigured.
I have a 10tpi machine. In mach3 steps per = 15,000 , vel = 8in/min, accel = 3 in/sec/sec.
The motors seem a bit hot. Are these settings reasonable to you all?
Do the motors have to be exposed to air to cool (I have plastic covers over them except 2 inches past the end jsut to keep chips and fluid out)?
Your Mach3 settings have nothing to do with motor heating. Steppers are designed to run hot, usually up to 150°F+. You can try lowering the VREF and see if they run cooler, but you'll lose a little torque.
Mach3 2010 Screenset
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)
I have 4 495 steppers driving 3/4 acme screws on a 60x60 inch table running
approx 60 ipm and from the time I turn on the table, it's quite a while before
the steppers get warm and then not hot. Warm but you can keep your hand on them no problem I keep my shop about 64 degrees. I hope I wont have a problem when its 95 degrees in summer. If they get hot, I'll put fans on them
I guess. I'm using Xylotex 4 axis driver and their power supply.
Aluminum heat sinks do wonders.
If they're not burning your hands, I wouldn't worry about though.
My steppers were running quite hot, up until I upgraded my linear motion from drill rod with brass sleeve to linear bearings. The misalignement and friction although not very bad were enough restrictions to cause overheating.