This is a piece to leave in the boot of your car.
You slot your Onewheel on its side onto it and it will stop it from rocking around in the boot of your car.
I have tested it with the Onewheel+ XR and the Trotter Onewheel, it works with both.
Should print without any supports.
Hollow sections have been added to reduce the amount of material needed also will reduce the print time.