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C-Beam Machine with xPRO V3 Questions

Discussion in 'CNC Mills/Routers' started by phil from seattle, Jun 19, 2017.

  1. phil from seattle

    phil from seattle Journeyman

    Mar 17, 2017
    Likes Received:
    So I took the leap and ordered the C-Beam machine with the optional NEMA 23 steppers and xPRO V3 controller. I plan on using a 24V power supply.

    I'm a bit surprised that there is not more info on xPRO V3. I couldn't find a schematic for V3, V1 and V2 yes but not V3. Any pointers would be appreciated.

    The xPRO stepper drivers are limited to 2.5A peak but recommended much lower - 1.8A. The steppers have 2.8A max. Seems like a mismatch but the video shows what I believe is that exact configuration so clearly the xPRO doesn't burn up! Joking aside, I assume that it should work ok. I am worried about heat production so I'll use forced air cooling. Are there recommended heat sinks?

    Grounding the C-Beam machine. I am a bit surprised I haven't seen this topic discussed (though could have missed it). I'm planning on grounding the C-Beam Machine frame to earth (3rd wire on the mains). (note: this is not the same as ground on the xPRO board, that is actually 0V though often called minus on the power supplies.) This is usually a good practice for machines. I'll be running off of a GFCI outlet. Am I missing something here? Not sure if I'll get false pops on the GFCI.

    Anyway, thanks for looking and maybe replying!

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