I made my son in law a christmas present:
I didn't make the brass adjustment wheel. A friend did that for me. The blade was second hand from Ebay. The locking mechanism works a treat, and keeps things rather neater than traditional screw-type arrangements. The pin in the back will be replaced by something smarter, probably in brass, in due course. Sorry there's no WIP, but I'm keeping the mechanism as a secret for now.