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Cheap Chinese TB6600 with RAMPS

Posted by Lorcan 
Cheap Chinese TB6600 with RAMPS
June 20, 2018 08:22PM
Hey all,

so I've bought 4 cheap Chinese TB6600 stepper drivers.

I have included 2 pictures. will add 1 picture more, from the chip on the downside of the PCB, soon.

I thought they would be useful for the two ACME threaded stepper motors used on the Z-axis.
However, they appeared quite a challenge.
No datasheet to be found on this type.
However, the online floating datasheet of the TB6600 did give me some ideas.

While ENA- and PUL- are grounded. the Dir - and Dir+ (+5v) needs to be controlled.
When using the standard configuration; Dir- to ground and Dir+ to signal, it turn clockwise. (Signal being LOW)
But to turn counterclockwise, the configuration needs to be; Dir- to signal and Dir+ to ground.

The operating frequency is 20Khz, so per pulse it needs to be 50 microseconds.

I have some issues with Marlin, to add this to the firmware.
So, please help me with this.
I was thinking on either using the sleep or reset connection of the stepper driver connections for either Dir- or Dir+

kind regards,

Edited 1 time(s). Last edit at 06/20/2018 08:24PM by Lorcan.
open | download - RIMG0066.JPG (711.4 KB)
open | download - RIMG0067.JPG (581.1 KB)
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