A PSU-box with the power outlet on the side.
On my AnyCubic Kossel i moved the PSU to the back and the On/Off switch to the front of the machine. To minimize the footprint of the printer I moved the outlet to the side of the PSU-cover.
The used outlet is not the original outlet from the Kossel, but a C14 chassis connector with fuseholder and without a switch. Builtin-measurements 28x31 mm (WxH) and the screws 36 mm apart. The original outlet will not fit. Don't forget to swap the Fuse.
The box is reinforced at the right places and is pretty strong. I put "PSU" at the back, in case you forgot where it is :) and to make it less boring.
Included are two versions, one with the outlet on the left (seen from middle Kossel) and one with it at the right ("Flip" in STL-name). The size is the same as the original cover.
I am not your mother, but Please be careful when you are working with electricity.
Wiring-diagram can be found in the manual.
Happy PSU-boxing :)
PSU-typenr : AC DC 8-300-12
Mounting-plate switch for kossel: https://www.thingiverse.com/thing:3626632