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Chinese motors crap or do i fail?

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I have uploaded a youtube video of what the motors are doing.




I have been lingering in this forum for a couple months now, but I am new to this...I have spent the better part of the last week doing nothing but getting a good understanding for how the entire DB25->BB->Driver->Motor system works and how to get it to communicate with the software. I bought 2 'relatively' cheap sets off ebay. One with 3 nema's and a BB/Drivers(combined). And i also bought a set with a C10 Board and KL - 4030 Drivers. I got these merely to teach myself and they have done exactly that thus far.

The situation I am in at this point is, One motor seems to function properly. One motor only works one direction properly. and one just makes noise.

I have switched the motors to different drivers and the drivers to different Dir/Steps on the BB... The weird part is that no matter what. Some of the motors wont perform correctly. Even the one that I showed in the video that appeared to be working properly, when i switched the driver/motor to another step/dir, it started not to function properly.

Now This would lead anything with a brain to believe that the BB is the problem, but I just *****ed up a storm to the person who sent me the board until he sent me another one. I just got the brand new board, and I still have the same problems. So is my configuration wrong? Are these motors just not going to work with a different BB/Driver setup than the one that was provided in the kit?

Thanks for the help!

Ryan



C10 BB
KL- 4030 Drivers
Nema 23 stepper motor 270 oz.in,3A, bioplar
Power Supply 350Watts( 24VDC/14.6A)

BB/Driver From:
3 Axis Stepper Motor Driver 40V 3 0A | eBay
Nema's/Power Supply From:
?US Ship Free Ship?Nema 23 Stepper Motor 270oz IN 3A 3 Axis Board Power CNC KIT | eBay

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