Wow Bob, I've never seen one made with pipe clamps before. How ingenious! Looks like I might have to make one of these… I'm watching the video now, boy, you are right, that sucker is fast!!!
Arlin,
The intent of this vise is raise the working piece to a higher (more comfortable) position.
While it cannot be mounted flush with the bench top the slides allow it to move to a position where the work piece can drop below the top of the bench.
Let me know if this does not clearly answer your question.
Bob
Arlin,
Those pipe clamps are limited only by practicality and the length of the threaded pipe used.
The green mounting base is MDO plywood, It is used for outdoor service and the piece I used had tire marks so I painted it my favorite color.
The tool box holder wood came from a stash of mahogany that I have from a woodworker friend who passed on, I used some of it to remind me of him when I'm in the shop.
Thank you for your interest,
Bob