Remixed adapter with screw thread for painting extension handles

I have several extension handles for paint rollers that I wanted to use with the excellent fruit picker design. I remixed the adapter and added a screw thread. It is a tight fit on a handle, but that is what I wanted to keep it from twisting when I'm juggling the picker to get at fruit. I applied a little silicone spray to the thread to make attaching smoother and easier.  I gave the screw threads a lower chamfer so this part does not require supports, although I did use an organic support for the top of the void. Depending upon your printer you may not need this. I recommend using a brim on this model to stabilize it during printing.

I revised this model to remove the need for internal supports.