Hi everybody, got one main problem with motors NEMA 34 1600 oz/in. Drivers are Longs DM860A, it was one set.

For gcode I am using MACH3.

Now my trouble. Did you ever meet with this? When I run by jogging everything sounds OK, no stop or strange sound. Then I run program (this case 200mm circle) with same speed but motors make strange sounds and start to block.

Where can be problem?

Here is link for video first I manually jog then I run the program.


Thank you very much for your help.

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