Elegoo Mars 3 Limit Switch Replacement

Written By: Konrad Skeri Ekblad
  • Comments: 2
Elegoo Mars 3 Limit Switch Replacement

Difficulty

Easy

Steps

4

Time Required

15 minutes

Introduction

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    • Remove 6 screws.

    • 12.5mm self tapping screws with 2.0mm hex socket head

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    • Use a small flat-headed screwdriver, spudger, or similar to pry open the lid enough to be able to get a grip of it and pull straight back and then fold down.

    • The back of the lid has a PCB with cables connecting it to the motherboard inside the unit. While not particularly fragile, do take care so you do not damage the connectors.

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    • In my case the replacement limit switch was delivered already connected to a cable. If you are only replacing the actual switch you can skip this step and instead unplug the opposing end on the switch itself later..

    • Remove the limit switch cable connector in the bottom right corner by pulling it straight out.

    • Be sure to pull the connector, and not the cables!

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    • Remove the two screws securing the limit switch.

    • M4x7.5mm socket screw with 2.5mm hex socket head

    • Hold the limit switch in the lower end and pull it downwards.

Conclusion

To reassemble your device, follow these instructions in reverse order.

Author

Konrad Skeri Ekblad

Member since: 10/12/17

490 Reputation

2 comments

I've looked everywhere and can't seem to find a place to buy a replacement limit switch. Any suggestions?

johnathan cuda -

I got my replacement directly from Elegoo support. Send them an email, they are very helpful.

Konrad Skeri Ekblad -