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For appliances that don't have a rotating hook to hold the power cord to keep it tidy when not in use. Typically garden or workshop tools. The hook rotates to make it easier to unwind the cord for use.

The model is drawn for a 26mm shaft but all parts can be scaled down. By sinking the shaft recess below the printing bed a flat surface can be made.

Two fixing methods are available, a 6mm screw (it'll need tapping) or a few cable ties. Scaling down the screw fixing will lose the 6mm dimension.

Basic but it works.