I needed a tray for my bicycle repair stand. Since most of the time the stand is tugged away in the corner the tray should be removable.
So I created a cone adapter that is small and stays on the stand. The tray can be hooked in when needed. Also it can be swapped for different trays.
To mount the adapter you need:
The measurement of the adapter are:
Link to OnShape CAD model. Model can be measured, exported as step or modified:
https://cad.onshape.com/documents/897c3c907c2f5a4ecb042279/w/5eaf3e1394265418d9569740/e/3aa4ec25e1472e96ae701f46
The author marked this model as their own original creation.