This is the second version of the V1 Engineering ZenXY sand table, the ZenXY v2.

These parts should fit 25mm OD and 18mm OD Tubing

This improves on the first version by fully capturing all rails, simplifies the bill of materials, allows for faster moves, and much less physical noise. Paired with TMC silent stepper drivers and a quiet medium like baking soda the table is nearly silent. To top this off is you are replacing a ZenXY v1, it fits in the exact same footprint.

The instructions can be found here (and are a work in progress). Build kits and parts can be found here.