Folding propeller stoppers for aluminum blade holders by Mayatech. These will prevent the propeller blades from striking the wings or each other when folded.
Caution: Print with either 100% infill or none at all to prevent imbalance. I used PETG, but PLA might work too. Check assembled propeller's balance before use! It might shatter and injure bystanders! It will also damage your model if excessive vibrations are present, especially at high rotation speeds with foam models.
The author marked this model as their own original creation.