Thought I'd try router planing multiple juniper slabs all at once. Total of 7 slabs had been cut by chainsaw, needed to be planed down to equal widths. That's where the router planer comes in. I set it up so the slabs would be as stable as possible by placing them flat on a non-skid carpet underlayment, shimming them, and then adjusting the depth of cut of the router bit:
The results were satisfactory:
If this "construction" process works as well as it has so far, I plan to make a whole bunch more.