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I bought a couple of them to start learning the tuning performance of running stepper motors, at the beginning I was quite disappointed with the speed and response (missing steps), but as I try different switching timings I realized that this driver can really perform decently so if at the beginning your are getting the performance you expected don't be hasty to blame the driver board because I know this board can do better. my recommendation is to start with the Kelling 4030 default configuration and tweak it from there. timing will vary with motor, power supply, and logic either positive or inverted. I am very happy because with $20.00 you can have a three axis machine driver board control. I cannot beat that.
Verified purchase: Yes | Condition: New
3 years ago I made 2 sets of 3D controllers with 3 TB6560 for each set. They are still working perfectly with no problem all that time. I strongly recomment it for CNC step motor machines.
Verified purchase: Yes | Condition: Pre-owned
fast and eas setup, compact design, 5 start seller
Verified purchase: Yes | Condition: New
very smooth, accurate operation, motors sound great.
Verified purchase: Yes | Condition: New