High bed currents with Duet 0.8.5



  • I'm building a new printer which will use a Duet Wifi. Since Wifi is not currently in stock, I will prototype the new printer using my old 0.8.5 for a while. My bed heater draws 12.5 amps, so it won't work with Duet 0.8.5, but I read about the trick where you can connect a wire between VIN and Bed + to allow for higher current.

    I have some questions:
    1. What about Bed GND? Does it already have adequate PCB traces?
    2. I have a nice Wago connector for my 24V power that will connect my power supply output to Duet's VIN and some LED lighting. I'm guessing I could just connect one a wire from it directly to my bed heater +, which would be equivalent to bridging VIN to Bed +?

    Thanks!


  • administrators

    Yes and yes.



  • Great, thanks!


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