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NEW BUILD CNC Need Help Wiring

3453 Views 7 Replies 5 Participants Last post by  labradorian70
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Hello All

New to CNC routing and in the process of building my own CNC, its a challenge but with a good computer and electrical background i will figure it out. Of course with some help from you guys.

In the pics attached you can see that i have the table and gantry built and in the process of wiring up the components. Im using a MACH3 CNC main control board by bitsensor, see pic. red board. and the motor driver board is the MD430, see pic board with green backing. The part that is not straight to me is the motor control connections. Let's take for example the X axis. on the red board, you have XP and XD(in addition to 5V and gnd). On the green MD430 board (in which the motor connects to) there is STEP, DIR, EN and +5V

I have the md430 board 24Vdc all connected, and the motor connections for the motor inself are straight forward. but how to i connect the main Mach 3 red board to the green stepper motor controller board(gren MD430). There are two wiring diagrams i have attached that are not clear to me.

Right now I have the XP connected to Step and XD connected to DIR, but do i tie the 5V to each other?

If anyone can please give me some direction on this that would be great. I have the Mach 3 software installed and im communicating with the USB mach control board.

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I have no experience but according to that diagram it looks like all the +5Vs are connected together. If the weight of the diagram lines are any indication, there should be a 'bus' connected to the USB board and then individual wires going to the controller boards. I'm interested in seeing your progress on this project, Glen.
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