Maximizing work holding efficiency for 4th axis production machining

Here I am using my new vises as they are intended to be used. I have been trying to get away from custom fixtures for my 4th axis workholding and this is my solution. They are quick and easy to use both when designing the work holding, machining it to the point it is ready to use, and while making parts. They are solid and clamp the parts extremely well, I have not had a part shift while machining it. This project has turned out far better than I ever imagined. If you have a single table mill with one 4th then you can swap these vises with about 20-30 seconds of spindle downtime with a pneumatic tailstock, or 15-20 seconds with the 2" vises. If you damage a workholding station it is easy to swap the jaws, run your program to cut them you already have, and you are good to go. If your part design changes or is discontinued no problem, all you lose are the jaws, unlike if you had a custom fixture.

[@RSPFactory]

Nice. Can you show more detail on that tombstone? Curious on how you did the dual vise.
Also, do you have some kind of zero point to swap the tombstone out with others?

[@cgpmachining]

I will do a video on the vises and all of the options for holding them in a few weeks, until then you can get a better look at the vise body in the last video. I have been doing small parts 4th axis work like this for over 25 years and have a system down that hasn't changed in that length of time, it is what I tried after finding out dowel pins suck if you are swapping the fixtures between cycles. I will be offering them for sale soon and what is in this video will be around $450 with a set of jaws, with the end plates being extra. I will have some end plate fixturing but what you want really depends on your rotary and how you want to use them.