BCAR (Sử dụng vòng bi cỡ lớn)

I created this after seeing some pretty cool looking parts that were milled from aluminum. I decided to go with oversized bearing to let me make everything a little bit more stout but still balanced.

The whole thing ends up weighing ~80 grams fully assembled.  Not sure what the twist rate is because I am quite new at CAD and this is my first project using patterns and assemblies.