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Originally Posted by HemiEd
Very interesting. It is similar technology to what we had in the electronic manufacturing industry and a lot of our customers had in the metal industry.
We had pick and place machines that would place up to 70,000 components per hour on a smd circuit board. Millions of dollars on the production line.
What do they do with those good sections of wood, glue them back together?
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We ran all kinds of things... Dimension stiles and rails for the cabinet industry, S4S boards for big box, dimension components for furniture industry, flooring etc.
At the gang rip, you have an arbor, say 31", with multiple blades set to cut a variety of widths at the same time. You try to rip such that more defects go into narrower pieces to increase yield. You might be ripping a 1x6 for box store and a 1-5/8 rail blank for a cabinet at the same time. They just get processed at different automated crosscuts down the chain line and kick out to conveyors going to different molders.
Combined ripping, of course, depended on species though. We ran alot of hard maple for cabinets, which we didn't run for S4S. We ran alot of birch for furniture that was 6/4 and 8/4 instead of 4/4, so not much overlap there either. When it came to running red oak and cherry we had alot of overlap there. We'd usually split the hard maple out to flooring and dimension cabinet. Soft maple would be box store boards, cutting boards, and trim.
Wide panels get glued (16" and 20" mainly). We could glue some for the wider S4S boards too (1x8+).
Eventually you end up with an overabundance of shorts and those get finger jointed to make longer sticks for paint grade trims.
Quote:
Originally Posted by HemiEd
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You're welcome. Just build it to fit your dimensions. I did a quick google and a saw a couple that were pretty good. I think there was one from Kreg where he builds a 20" sled.