PPG Propeller Balancer

I designed this to balance the propeller on my paramotor (PPG). My motor is a Vittorazi Moster 185, and I use the Helix 125cm propeller. This design may work for other variants but likely needs to be modified. I used FreeCAD to design this.

This can work to balance in 2D. I use a pencil tip to balance on, and the pencil only needs to be "reasonably vertical" for the balance to work precisely.

I used these 20 mm bubble levels from Amazon that press fit into the top:
https://www.amazon.com/gp/product/B08BXKRR7M

Possible modifications for other motor/propeller combinations:
- pin distance
- pin diameter
- pin height
- hub diameter
- hub height
- underside conical recess height (affects stability and precision of the balance)

Edit: I created a new V2 version that works well for balancing the Helix as well as the new Vittorazi "Fast Acceleration" propeller for the Moster 185.