Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:2936787.
This is a remix of a Z-axis upper brace with bearing by nilocwng but for the Zonestar P802QR2. You will see need a pair of bearings. I got mine from the following site:https://simplybearings.co.uk/shop/advanced_search_result.php?search_in_description=1&keywords=8x16x5+mm
The brace is fastened to the frame with 2 x M3 x10mm Bolts\nuts. This component makes the whole assembly far more rigid than relying on the naff self tapper mounted component supplied with the kit. Would recommend using with the remixed lower Z axis brace at the following link: https://www.thingiverse.com/thing:2936798
Collection of all my upgrades for the Zonestar at the following link: https://www.thingiverse.com/thing:2936870