Brushless motor bell holder/wrench for prop removal

thingiverse

This is a simple tool for securing the bell of a brushless motor to prevent it from rotating during installation or removal of propellers. It's designed with two parts: a main body that can be printed using PLA, although printing with nylon would likely make it more durable. There's also a lining that's printed flat and then folded inside the main body for added stability. This lining must be printed with flexible material like TPU to prevent the motor bell from slipping. The tool can still function without the flexible lining, but a significantly higher force will be required to keep the motor bell in place, which may result in damage to the part. Two versions are available: one designed for large motors (23XX) and another for smaller motors (16XX). I've successfully tested the larger version with 2306 and 2205 motors, as well as the smaller version with a 1607 motor. While tolerance should be relatively high, users can still request custom sizes or use the parametric model in Onshape, found at https://bit.ly/2GGmjYH. A recent update has been made to the design after over a year of use and multiple broken instances. I strongly recommend printing using PETG instead of PLA for added durability. Additionally, an updated version with a thicker 2.8mm diameter is available, along with a new 23mm version. For custom motor diameters, users can still access the Onshape document at the provided link.