This useful bracket is designed to allow you to mount a 120mm cooling fan on the end of the Motor in a Sinclair C5.
When designing it, it was built up in 3 separate parts to make it easier when testing. The parts are then merged together into one piece. Except for the 4 prongs that slide around the motor power inputs.
Due to the need for strength in the 4 prongs, these are printed out as seperate parts (on their sides) and then slotted into the main body and bolted into place. Printing them in the flat position gives them much more strength than if they were printed vertically.