wiring JRK 12v12

I have been building a 2dof platform with JRK units in mind. I was wondering if anyone could help me out or point me in the right direction when it comes to wiring. I found this picture on the forums how to hook everything up, but I still had a few questions. I was wondering what sort of gauge of wiring I would need to use to connect the hall sensors, the motors, and the PSUs. I'm looking online for tutorials on how to solder so this should be fun. Is there anything I should know before hand stuff that I should avoid so that I don't fry anything?

The first thing would be to read the JRK 12v12 manual. There is a lot of good information in there. Not sure where you got that diagram, but if you get 3.5v at the top of that potentiometer, you are using a very wrong value. You should go for 10k pots in which case you should see 5v at the top of the pot.

@noorbeast - reversing power and ground on a potentiometer resistive element will just change if the wiper voltage is increasing or decreasing on turning the input shaft a certain direction. However, with Hall sensors, power and ground do matter and reversing them can damage the sensor if it isn't reverse polarity protected. Many here use potentiometer and Hall sensor interchangeably but it's probably a good idea to be specific and use the proper terminology for whichever sensor type is being discussed. For whatever it's worth.

Also, the JRK manual says it is reverse power protected but I sure wouldn't risk it.

Just copying this from a PM related to this for the sake of the broader community. @James Farrar was asking a very similar question about wiring everything, especially the PSU's. Many of us have used surplus HP server PSU's and they are an amazing value, but can be tricky to work with.

See my post here: https://www.xsimulator.net/community/threads/2dof-joyrider-flight-race-sim-build.7498/#post-89394

The HP server power supplies do nothing if you just plug them in. You have to connect the tiny pins together as out outlined in that post to make them think they are installed in a server.

I mentioned in that post that I was going to run the two PSU's in parallel. I ended up not doing that, and kept them completely independent and used one power supply per JRK/motor. Between each PSU and JRK, I just ran a ground and +12V wire. Make sure you use big wire, especially if you plan on running the wire any significant distance. I think I used 8 or 10 gauge to keep the wires from heating up too much. I'm only going a couple feet and rarely run above 15 amps per motor, so I've had no issue. But you can literally melt the wire if you use something too thin.

Hi, Thank you so much for the reply. I have been working on this project, but haven't had much time to spend on it. In Godwin's post it was not very clear how exactly I needed to connect the pins on the PSU. However, I used this thread that someone did and the pictures of their project helped clear it up for me.

https://www.xsimulator.net/community/threads/how-to-modify-a-server-power-supply-for-12v.5774/

Now, that I have everything soldered and in place all that is left is to connect everything to the two JRK units. One last question though. I noticed on the diagrams that the motor outputs were labeled A and B. I have two wires that are leading out from the motors, but I'm not sure which one goes to which.

P.S. Zed I do have the 10k pots that you have recommended. I have all the same parts as cgodwin's build that he did.