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  1. Ensure the printer is turned off and not plugged in!!!
    • Ensure the printer is turned off and not plugged in!!!

    • Prepare tools included in the MK3 kit or get similar from the nearest hardware shop. You will need:

    • Needle-nose pliers

    • Allen keys

    • Raise the X-axis (Extruder) up, so you have enough space around the Einsy case.

  2. To access the pins for Pi Zero W we need to completely remove the EINSy board from the RAMBo cover. DO NOT try to break the cover from the rear side! Any damage caused to the printer is not covered by the warranty!!! Using Allen key release the  M3x40 screw.
    • To access the pins for Pi Zero W we need to completely remove the EINSy board from the RAMBo cover.

    • DO NOT try to break the cover from the rear side! Any damage caused to the printer is not covered by the warranty!!!

    • Using Allen key release the M3x40 screw.

    • Using pliers cut the zip tie on the cable bundle from the Heatbed.

    • Using pliers cut the zip tie on the cable bundle from the Extruder.

  3. Carefully push all the cables from the side opening, leave them connected to the board. Carefully push all the cables from the top opening, leave them connected to the board.
    • Carefully push all the cables from the side opening, leave them connected to the board.

    • Carefully push all the cables from the top opening, leave them connected to the board.

  4. Release upper two M3x10 screws holding the EINSY board together with the RAMBo cover. Release lower two M3x10 screws holding the EINSY board together with the RAMBo cover.
    • Release upper two M3x10 screws holding the EINSY board together with the RAMBo cover.

    • Release lower two M3x10 screws holding the EINSY board together with the RAMBo cover.

  5. Slightly release two M3x10 screws holding the RAMBo cover on the frame. DO NOT unscrew them completely!!! Carefully slide the RAMBo cover from the frame. Plugged cables won't allow you more than few centimetres. Separate the cover from the EINSY board.
    • Slightly release two M3x10 screws holding the RAMBo cover on the frame. DO NOT unscrew them completely!!!

    • Carefully slide the RAMBo cover from the frame. Plugged cables won't allow you more than few centimetres.

    • Separate the cover from the EINSY board.

  6. Locate the opening for the GPIO header on the back of the EINSY board (see the first picture). Carefully slide the RPi Zero W in. Check the header pins are all the way through.
    • Locate the opening for the GPIO header on the back of the EINSY board (see the first picture).

    • Carefully slide the RPi Zero W in.

    • Check the header pins are all the way through.

    • Do not solder the pins to the EINSY board! You must be able to remove RPi Zero W from EINSY board.

  7. WARNING: in this step we need to plug the printer and turn it on. Since all the electronics are out, don't leave the printer unattended!!! Now, plug the printer and turn it on. Go to the Settings menu and turn ON the RPi port. Return to the printer's home screen. Now, wait for a few minutes. The RPi isn't a superfast computer and it needs time to boot. Then open the browser and try opening a website: octopi.local
    • WARNING: in this step we need to plug the printer and turn it on. Since all the electronics are out, don't leave the printer unattended!!! Now, plug the printer and turn it on.

    • Go to the Settings menu and turn ON the RPi port. Return to the printer's home screen.

    • Now, wait for a few minutes. The RPi isn't a superfast computer and it needs time to boot. Then open the browser and try opening a website: octopi.local

    • If octopi.local doesn't work, please use the following steps:

    • Check your router for new IP address or wait until the address is displayed on the printer's screen.

    • As soon as you have the IP, open browser on your PC and insert it. If the Octoprint webpage loads, you can continue.

    • Troubleshooting is on the next page. IP address is shown using plugin, big thanks to jneilliii

    • In case OctoPrint works, turn off the printer and continue to the next chapter: 2. Printer assembly

  8. OctoPrint provided by Prusa Research is tested and is confirmed to be booting correctly. If you can't access the web interface, check the following: Is the RPi port enabled on your printer?
    • OctoPrint provided by Prusa Research is tested and is confirmed to be booting correctly. If you can't access the web interface, check the following:

    • Is the RPi port enabled on your printer?

    • Did you enter correct Wi-Fi name (SSID) and password?

    • Is the RPi Zero W correctly plugged in the EINSY RAMBo board?

    • Are you connected to the same Wi-Fi network?

    • In case all hints above didn't help, please visit our forums.

    • Did you manage to solve the issue? Turn off the printer, unplug it and continue to the next chapter: 2. Printer assembly

Finish Line

43 other people completed this guide.

Jakub Dolezal

Member since: 02/20/2017

225 Guides authored

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Prusa Research Member of Prusa Research

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367 Guides authored

13 Comments

Great. Bought a prebuilt printer to avoid having to mess with the RAMBo cover and the 100000 cables so everything fits together without pinching wires or bending pins when closing it, and now I have to disassemble it completely to install a Raspberry Pi :/

I’m just going to connect a normal Raspberry Pi with an USB cable for now I guess :)

Joris Mans - Reply

Hi Joris,

it is a matter of 15-20 minutes to reassemble the cover with RPi inside. We are working on a RAMBo cover with easier RPi installation, but it will take some time.

Jakub Dolezal -

Is the raspberry pi 3 the same software as for the zero. With the 3 you can use a better cam . And it is independ.

I like to keep the i3 original as possible.

Frank - Reply

Hi Frank, not 100% sure as the RPi Zero W uses slightly different hardware configuration.

Jakub Dolezal -

can we use any rpi, don’t care about the looks, just want it to work.. - also does this mean rpi takes over the control of mk3 and no pc has to be on when it’s working (new at this)

Kresimir Jelusic - Reply

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