I had used the self made twin screw for a while and I found it incredibly aggravating to work with, so I scrapped it and traded up to a Lee Valley cast iron vise most by Yost. I took everything out that was associated with the old twin screw. It was incredibly hard to screw in while holding the workpiece with the two screws, then it would rack like no ones business. It was a waste of resources. Oh well! So I mortised the new vise into place, attached with 1/2” lag bolts, made the vise chop, and voila! A quick release vise that doesn’t require much fidgeting to get it to grab. So much happier! The only thing I need is some leather for the jaws and we’ll be good to go!
PS The shop is a mess! I’m going to tear it all apart coming soon to convert the garage into a real wood shop, so I’m going to start getting rid of things and cleaning it all out!
-- Greg, Owner, Quality Carpet One, www.qualitycarpetonecrofton.com