Yes yet another person who is asking for a wiring diagram. Not sure why this is explicitly not available with the exception that V1 does sell a wiring kit (wont work for me though).
Anyways here the deal. I built a mpcnc primo plasma cutter a few years back and foolishly let it go for my much larger lr3 not anticipating on needing the plasma cutting option any longer. Well, I changed my mind and now here I am rebuilding one. Problem is as title states, I need correct stepper wiring info. My wires need to be a certain length and I have to use a special shielded wire so i am forced to make it. If i recall when i did the last one, it was wired in series i think. I am using ramps 1.4 on 2560, 8825 drivers, and Nema 17 2.1a motors. not sure what the v1 marlin config is setup for. I did try wiring it in series as per diagrams i found but the motors run opposite directions no matter how i swap the wires. However if i wire it totally opposite of each other as if i was flipping the plug back to back it works perfect. The question I have with that is now how do I calculate vref?
if you are using ramps 1.4 with arduino 2560 and marlin V1, this will help you I think.
It is our picture off building 3D printers and unfortunately this is in Dutch but google translate will help. For micro stepping, do not forget to put jumpers on the pins beneath the stepperdrivers.
Thanks this does explain very well however, the part that is missing is when you have 2 motors inline. Or, does that not matter if your testing with both hooked up as the are already pulling the draw? For example 2 being used in series, or two in parrallel.
Another thing I might add is no matter how i flip the wires(and I have tried 30 different ways) they always run opposite in series. I am thinking i have a faulty board because with my 12v power supply hooked up the screen is washed out, but using usb in the 2560 its perfect.
On V1 builds, use of series wiring has been phased out. These days, all builds are made using five drivers, so each stepper motor gets its own driver. The series wiring configuration was primarily supported for the Mini Rambo board, which only had four drivers. V1 no longer sells the Mini Rambo board. Unless you have a specific reason to wire in series, I suggest you give each motor its own driver.
The V1 Ramps Marlin firmware is set up for the DRV8825 drivers. The V1CNC_Ramps version is for series wiring. The V1CNC_Ramps_Dual is set up so that each motor gets its own driver. As Frits indicates, you want all the jumpers under each driver to be in place.
