What is this part!?

[steveuk (Steve)]

It came with my printed parts and I cannot see it in the instructions, shop or on printables.

Cheers

[azab2c]

Maybe this Search results for 'pen holder' - V1 Engineering Forum ?

[barry99705 (Barry)]

Yea, it’s the pen mount.
https://www.printables.com/model/237997-basic-lr3-pen-mount

[steveuk (Steve)]

Thanks! It’s always worrying when you think you have finished and there are spares!