Re: dogs
Michael Recchione
>It sure would be nice to be able to try it both ways for a while. I know that I used my end-vise arrangement less and less as time went on, relying more on stops and battens. But part of the reason for that is that the cheap face vise mounted as an end vise on my bench has real sag problems, so I had to use shims on top of the vise face to keep boards level on the benchtop. And the thickness of the shims depended on the length of the board since having the vise more open meant more sag, etc - the "sag function" was basically a sawtooth wave with a period of 6", the distance between dog-holes on the bench. It just got to be easier to clamp down a batten running parallel to the front of the bench with holdfasts, and using a wooden dog as a stop. This was especially true when I had to bear down on the board. The vise and dogs arrangement had a tendency to work loose under those circumstances because it was virtually impossible to compensate for the sag perfectly. A real pain. Of course, the wagon vise completely eliminates those problems.
In all the Roubo discussions of a while ago, one thing that I resonated to was leaving the right end of the bench free for sawing. This would basically eliminate the need for a separate saw bench for me, and given that the shop is moving to a one-car garage, space is at a premium. Then again, not having a saw-bench would take getting used to - I've really gotten accustomed to holding larger boards with my knee for both ripping and rough x-cutting, and sawing at that angle. It'll take relearning to do it at bench height.
I'm wondering if it would be practical to build the bench without an end vise to begin with, and then, if I really regretted it as you suggest, to add a wagon-vise after the fact. It looks entirely do-able based on the original post in this thread.
I guess I'll just wait for Chris's book. As I said, there's a lot to do before the new bench gets built...