Hi I’m resurrecting my unused K40 and going for a full bed rebuild. I have bought an MKS DLC32 and a couple of TMC2208 drivers. Before I blow something up can anyone tell me if it is ok to plug them in (in the right orientation of course) and also since I have 2 motors on the y axis do I have to tweak the voltage on that one?
thank you.
You make it sound like you have one Yaxis output. I am pretty sure you need a board with double Yaxis outputs and driver modules. You cannot parallel, or at least I never would, stepper motors. Of course, anything is possible coming out of China.
And yes, just plug them in. You may need to make adjustments.
Hi
The DLC32 board has one Y axis driver chip and two output sockets. The motors run in opposite directions as required so I assume the board was planned for this type of installation. I cannot find any info for the correct settings in this scenario.
They did infact “divide” the dual Y axis output into two:
You can find the wiring manual here.
If you are running the stock firmware on the controller, the configuration needs to be done by editing the config file on the SD card: Firmware · makerbase-mks/MKS-DLC32 Wiki · GitHub
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Hi
Yes I checked with a meter and the 2 y outputs are just paralleled, with one output reverse direction. I assume now that I have to up the Vref voltage to accomodate both.
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I have a DLC32 also, that I had wired to full size stepper motors in my OMTech 5030 machine.
I did look at drivers, and one was the TMC2208 and I have a video I bookmarked which seems to cover most of the setup.
Might try watching it, about 20 minutes, might help you out.
The NEMA17 motors have a 2A rating at maximum. It’s a pdf, you remove the .txt extension.
Data-Sheet-Stepper-Motor-Support.pdf.txt (839.0 KB)
Probably more than you wanted to know 
Have fun
Indeed! I stand corrected, 50%. I did say China, right?
Not only that, but you (well, they) can put them in series to ensure equal winding current. Happened on my old MPCNC with a 12 VDC supply:
Which did not work well at all, because back EMF:
Eventually I ran them from 24 VDC with much improved performance.
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Thanks for the link… heavily oriented to Marlin software though. I don’t really need the minutae of setup, but just a couple of pointers relating to Vref. I’ve read some stuff about putting the motors in series. I could build an adapter to do that. Is it worth it?
Not according to what @ednisley just posted. Looks like China stole our technology, but not the Good Design rules that went with it. Oh well, it is what it is…
Completely confused now. Is that a no to serial connection and if I use the on-board parallel do I halve or double the Vref. ?
It would be better if guys that use these would be better to answer, but as an Electronics Technician I say NO to a serial. I also say NO to parallels, but the board gives us no choice.
Serial: Same current thru both, voltage would have to be increase to get full rated power.
Parallel: Same voltage across both, the current limit would have to be raised because you have 2 paths.
I don’t mess with my controller, so I am not familiar with setting the pots on the driver module. You will have to experiment using a DVM.
Ok thanks a lot. I will persist with the on-board parallel arrangement.
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