Four Motor Maslow.. sort of

[jwolter]

Another approach was proposed by @slomobbile. I had wanted to test this idea out, but have not gotten to it. It would still suffer from some of the issues at the top center and bottom corners.

Parallelogram chain

I just discovered that Maslow exists today, so please forgive if this idea has been covered before. It seems that both the links on the sled and the ring are designed to allow the sled to rotate, but hopefully stay concentric with the router bit. Great if it works. Does it? For potentially better accuracy, I thought “why not just stop the sled from rotating in the first place.” If the sled always stays plumb, then you can add additional tools to the sled (like a sharpie) at points other th…