• Cable chain Inner dimension: 10x10mm R18, Outer dimensions: 13x17mm
• https://www.aluminium-online-shop.de/de/shop-aluminium-kleinstmengen/Z-Profile-_-33/index.html

• Bosch Taper Countersink Bit M3, HSS, Ø 6,3mm, Art.Nr. 2608597501

The main concern with using a cable chain for the Y-axis is how to make a connection which is both capable of sustaining high currents, can be crimped, and is small to fit into a 3d-printed enclosure. For this, a suitable option would be to use unisolated cable-shoes. These are easy to source and easy to use with a 3d printed mounting base, which functions as a junction box. On the picture below a realization of this idea can be seen:

Junction box - detail

With the cover, mounted on the junction box and on the junction box mounted onto the aluminium profile, it looks like the following:

Junction box - closed

The whole combination consists of the following parts:

Overview of parts

At the picture the following are shown:

1. Aluminium Z-profile, 20x20x20, 2mm thickness, 45mm length
2. Cable chain, 10x10xR18
3. JST-XH connector & socket and 2-pin header to connect to sockets with eachother
4. Cover, to be printed
5. Junction box, to be printed, with 2x M3 tapered screw, 4x M3 nut, 2x washer, 2x spring washer
6. Final result of (1), including 2x M3 tapered screw (black) and 2x M3 regular screw (to mount Z-profile onto Y-base)