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    • It can be tempting to rush ahead - you're almost done, after all, and you want to see your printer print. Don't rush these steps.

    • Read each step carefully, and follow the instructions closely, you'll save yourself a lot of time and headache.

    • If at any point you feel over your head here, stop and ask questions in the RailCore Discord (Best option) or RailCore Facebook group.

    • Be very careful near your electronics with the cover off. You can install the cover first, but it can be difficult to adjust things, so I install it after the smoke test.


    • Your Duet comes with an SD Card pre-loaded with configuration files. We need to change those to the RailCore default files.

    • Remove the SD card and put it in your PC. On it you'll find a series of folders.

    • Make a copy of the "sys" folder, and call it "sys_original".

    • Copy all of the files from here into your sys folder, overwriting the original files:

    • Copy the files here into the /macros folder:

    • Eject the SD card from your PC, and put it back in the Duet.

  1. Before powering-on the first time, You need to connect to your duet with a microUSB cable.
    • Before powering-on the first time, You need to connect to your duet with a microUSB cable.

    • Follow the instructions here for getting connected to your Duet: You can use YAT as suggested, or any other serial console program.

    • Don't worry about upgrading your firmware yet, but take note of the version installed.

    • Send an M115 command to your Duet, be sure you see "Duet 2 WiFi + Duex 5" in the output.

    • If you do not see Duex 5, STOP. Your Duet to Duex5 ribbon connector is not working. Disconnect the USB to shut off the Duet and fix it before proceeding.

    • Continue following the instructions to get the Duet connected to your network.

    • Ensure that you can reach your Duet via Duet Web Control before disconnecting the USB. When you unplug the USB the duet will lose power.

    • Double check all your connections.

    • Double check them again.

    • Once the printer is powered, do not work on the electronics until you power it off. Keep your fingers entirely away from the electronics area while the printer is on.

    • Connect the power cord to the IEC inlet plug.

    • Power on the printer.

    • You should be able to connect to the web interface you set up earlier.

    • Connect to your Duet via the web interface.

    • Navigate to the Settings, Machine Specific and look under Electronics to see your Firmware version. Under Settings, General you can see the Duet Web Control (DWC) version. If you're not at Reprap Firmware 2.05.1, DuetWebControl 2.0.7, and DuetWiFiServer-1.23 (for WiFi versions), follow the steps below to upgrade.

    • Download and aip4e.bin from

    • In the Duet Web Control GUI, navigate to the "System" section and select UPLOAD SYSTEM FILES.

    • Upload iap4e.bin into System files. (It might be there already.)

    • Upload and reboot when prompted. Note that the .zip file should be sent as-is, and not extracted on your PC.

    • Check your firmware versions in the GUI to make sure they match the expected versions.

    • Now is a good time to install your top and left panels. Each gets (4) M3 x 16mm button head bolts, (4) m3 washers, and (4) m3 nuts.

    • Install your Ebox Cover using (4) M3 x 8mm button head bolts.

Finish Line

8 other people completed this guide.

Tony Akens

Member since: 10/26/2019

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20 Guides authored


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