re: Onshape practice

I added the sash clamps in part because it clamps everything nice and tight and makes it more stable.  I found that with the sides being so tall with only the axle holding them together, it tended to sway a little in use and locking it down at the corners definitely helps to prevent that.  Also,  I have the sliding piece on all four corners so I do not need them to prevent it from pivoting while in use but some sort of locking mechanism may be required if you do not have the other 2 corners supported as I do, especially if you put something like a planer on it.  When the board gets out far enough on the unsupported side, it could cause it to try to flip over.