A simple gutter cleaner.
This push fits on to my sweeping pole. The internal hole diameter is 25.5mm
I was not sure on how to create the correct size treads for the brush so a tight push fit works for me.
I have been interested 3D, since seeing Lightwave3D on the Amiga computer some years ago.
Its only until recently I actually made a 3D model....Thanks to 3D printing; software has improved for creating objects.
I use Fusion360 at the moment.