OK not sure why I would do this, still neat

The author took a build for a sliding circular saw cut sled, and basically added in a threaded guide to it so a drill could move the saw along. I do like the standoffs the author makes in this. I guess if you wanted to make something that was a bit safer this would be the way to go. I also like the emergency stop added in.

https://www.homemadetools.net/forum/how-make-automatic-circular-saw-sliding-guide-86230?homelistings#post184790