It does seem like you are "locking down" in the ways Ryan and I are thinking.
Just need to keep it from shifting/sliding around on the table.

The up/down thing bothered me too, raised mine about 2". I can still adjust the laser down to the table so I'm just making more use of its travel ability.
Haven't done anything that required raising the frame higher, if I ever do then I'll add some temporary blocks.
Probably better to just cut a hole in my table and raise the project up from below.

Dust shouldn't be too much of an issue, justĀ  alarge trash bag when not in use. They create their own dust in operation so no matter what you will need to break out the air hose on occasion to blow off the lase parts.


Gonna be fun to see what you create!