If you have nothing to do and you are bored you can use this toy to spin your thumbs, this is very relaxing.
I use a Anet A8.
I used PLA, layer height of 0,15 and an infill of 10%.
It´s print in place and you dont need support, because there is already support for the balls.
After its printed remove the support. Make sure the balls doesnt stick to the walls, if they do breack them off from the walls so it can roll freely in the ball-bearing.
Hello , I am Janis Bruchwalski.
My 3D printer is an Anet A8.
I use Blender for modelling.
I mainly create toys that are small and fun.