Printed with 100% infill, to be more stable and resistant. But you can try to print it with less infill, didn´t tried yet.
Also I am not sure about supports. I used them, but maybe they are not nessesary.
Designed in Autodesk Inventor. I also added screen with dimensions, if you are struggeling with hole diametres and your toothbrush :D
Happy printing!
The author marked this model as their own original creation.