Two pieces that fit on top and bottom of the MK3 PSU (make sure you have the same unit as pictured (picture coming soon)).
Those pieces can be screwed in place on a IKEA Lack table leg to hold the PSU with around 5mm space between the inside of the leg and the mounts. This is a good solution if your Lack enclosure has sides that overlap the table legs.
This one is also designed for the PSU to be held in place. Other designs I have tried recently allow the PSU to entirely slide out when pushed in the same direction as you push the power button. This irritated me somewhat so I decided to come up with my own design to address this.
Three perimeters, 0.4mm nozzle, 0.2 layer speed setting. Brim if printing on a smooth bed (4-6mm). Grid / cubic infill.
Definitely requires supports to print cleanly.
The author hasn't provided the model origin yet.