Re: Decent Chinese stepper motor packages?
Originally Posted by
BBMNet
Hello.
May I suggest you to consider using independent drives? Of couse there will be a difference in price but in my opinion it is worth the effort.
My clients have machines using independent drives and some are in the 10 year range of trouble free operation.
To tell the thuth I have never considered using combo cards or whatever name they have.
While I might be proven wrong I think independent drives give you a broader choice for fine tuning and the power dissipation is better.
By the way, your motors overheating might be due to excess current other than overloading. Have you tried to lower the current limit? I was taught to adjust the drives for the minimum possible current that allow the motor to work without loosing steps. This far that has worked for me.
Best regards.
Better use AC servo motors and AC servo drivers, with absolute encoders, there will be no losing step problems any more.
http://cncmakers.com/cnc/controllers/CNC_Controller_System/CNC_Retrofit_Package.html