I decided that I wanted to build a Thickness Sander so that I can sand boards that have been glued together for segmented wood turnings. When you have multiple species of wood at different angles, you can't run them through a planner anymore.
I found a set of plans at http://www.shigshop.com/thickness-sander.html for a thickness sander, bought them, and embarked on the task of building this project.
It is a lot of fun -- and a reasonable amount of work. Since I am making this at Tech Shop, I have all of the space and tools necessary to make the job easy.
So far, I have the sanding drum and four conveyor supports done. It has taken me about 20 hours to get this far.