To add an additional insult, it is not even square. No two edges within 1/8 inch, no 90 degree corner. Without a big sliding table saw, kind of a hard thing to rectify. Strait edge, lots of measurements and a circ' saw. I got one 90 degree across a 2 x 2 sheet. Then I can square it up on the TS.
Of course, in laying out my sled design, I realized I don't need it to be square. All the critical dimensions will be referenced after the guides are on and a partial slot is run through it. The slot is what matters. What I need is about an 18 inch triangle that is really really dead on. I wonder if a large vinyl floor tile is good enough? I did beat on my framing square to get it closer. Close enough for carpentry, but not jig layout. More quality? Nice set of aluminum guides with top accessible "split washer" snug adjustment. Great? The screws holding the washers in were too long and hit the bottom of the TS slots. Easy fix, but still just more crap.
I do worry about supply as most US lumber is sent to the Far East and made into plywood and other finished supplies, then shipped back. Logistics economics, not talking politics here, makes some strange product routes. We pump oil in the Gulf, but ship it across the Atlantic, then buy oil from across the Pacific. Drought in Panama is making things worse as the canal is limiting traffic. So we are a net oil exporter, but still import half our oil. Bulk carriers are amazingly cheap transport. I think the old line has new meaning " Hold on tight it is going to be a bumpy ride."
