Due to incorrect estimation of tolerance, the propeller holder had to be reprinted as the coreless motors did not fit. The holder had to be printed in 2 parts as it is too long to fit inside the 3D printer. It was also re-designed for more levity since the first holder was relatively heavy and most of its mass was redundant. In order for the propeller to not slide out of its holder, a hot glue gun was used to secure it by dropping small bits of glue on motor and surrounding the opening of the holder. It was imperative to ensure that the glue was only touching the motor’s casing and did not the protruding revolving tip from the casing that connects to the propeller. If the glue gets caught inside the motor, it will probably spoil the entire motor.

Propeller holder 2