Why is it called the Orbit Spin? If you happen to position your drill off center with your cores, or tend to move your drill around slightly while making your coils, this design will move with you. The base has slots for easy tension adjustment, if you choose to hard mount to your table. This type of slide mounting allows the core to stay tight in this type setup.
Strong 3D Printing Base, Cup, and Cover:
Rotating Clevis Pin: up to 20degrees in every angle