The author remixed this model.
Enjoyed the 2.5" Three Jaw Chuck by mdkendall, however, the chuck kept falling apart after the slightest torque.
Modified C-Clip:
The retaining C-Clip would pop out easily. I thickened the clip, increased the amount the circumference engagement, and added a stiffener to keep the clip from deforming as easy.
New Threaded Hex Bit:
I needed a method to mount to my drill, and I didn't want to glue. The original model has threads, so I decided to use them. This allows a nice mount that can be easily removed.
0.2mm layer height maximum for the threads.