Based on the "Anycubic Wash and Cure Riser" by bhuynh2012 https://www.thingiverse.com/thing:4214430
which did not fit either to the base unit nor to the rotating platform of my Anycubic Wash & Cure Station.
Modified in TinkerCAD.
Fit to base unit is still a bit loose but was fine for my application (curing small SLA prints) - just be careful when placing heavy objects on the platform.
Riser_corrected.stl | 167.1KB |