Identifying parts of 3D printer

[artemiy03]

Hi everyone,

I’m working on a custom large-format FDM build, but I think Voron also has this parts I need to recognize. While looking at the BigFDM design I noticed two black box-like parts (see image, marked with green circles).

Does anyone know what these black boxes are and what their function is in the motion system?

Any insights would be super helpful—thanks in advance!

 

[Sanity Agathion]

This looks like some kind of Bowden and wiring holder for the two hotend toolhead. But this is a Cartesian printer, VORON has always had only CoreXY printers (well Switchwire is CoreXZ).