I am fortunate enough to have access to a 3D PRINTER (how awesome is that!?)!

And I am making—
A fidget spinner!

BUT WAIT!

A- What programs do you recommend (I use tinker cad… but it is kind of hard for this purpose! Do I use blender or… what! Preferably open source or free!)
B- If you know how to do this feel free to post a link to your design!

Please help me… I have a sketch and everything… I… Just… Need… The right…. tools….

i use blender

Looks like you don't have to model it yourself if you don't want to.

I love fidget spinners. My friend managed to balance one on her nose while it was moving