Summary

I really liked the idea of the original thing, but the chuck I have is 1/4" hex drive. So I modified the original to accept what I have.

The hex hole was a bit too tight for my liking, and the print was almost3 hours, so I did what I call Candling. I took a long shaft 1/4" hex extension, and held the end over a candle and then worked it into the hole. Heat, shove, wiggle, remove, and repeat. This gave me a fit that was tight, but just loose enough to remove when required. Removing the chuck is important for me because this is the drill chuck I use with my cordless screw driver.