Jon As a comparatively new member of this site I like the idea
I have spent countless years dreaming up and designing many tools from the very simple to some being quite complex sans electronics However many of my homemade tools or machines will never be listed here or anywhere else since I either do not still possess the tool or the pictures of same even though I do in many cases still have all of my 3d cad (Solidworks) drawings and assembly files in archive that I can easily retrieve, revive and convert to PDF for uploading.
Glad you and the others are thinking about doing something like this.