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How to fix the dreaded extruder fail

Discussion in 'Mods and Upgrades' started by Lance Weston, Apr 14, 2020.

  1. Lance Weston

    Lance Weston Active Member

    Jun 2, 2018
    Likes Received:
    The extruder failure is the most common stepper failure that I have read, but this will show you how to use E1, the spare, to replace the failed stepper. The tools you will need: Dremel tool and diamond bit, DuPont connector kit, wire, and a crimp tool.

    First you have to grind off the E0 stepper chip with a diamond grinding bit careful to not go deep into the board. I tried cutting the traces but that did not work well. This will completely remove the chips connections. Then you have to make a one to one 4 pin DuPont connector. Plug the connector from E0 to E1. For any other stepper you do not have to grind off the chip. Just use the E1 connector.

    Copy the hex file from:

    to a USB drive. Insert the USB drive and go to files in the USB drive. Load the Marlin hex file.

    You are now good to go.

    #define E0_STEP_PIN 36 //26
    #define E0_DIR_PIN 34 //28
    #define E0_ENABLE_PIN 30 //24
    #define E1_STEP_PIN 26 //36
    #define E1_DIR_PIN 28 //34
    #define E1_ENABLE_PIN 24 //30


    Attached Files:

    mark tomlinson likes this.

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