You are relieving the stress that is built up within the log. It is very normal for (some) boards to react such as yours. let me know if you need more info to help me out. Even still, I was having 4/4 poplar cut from an 8' long straight well-behaved log slightly "peel up". Today I made a concerted effort to set up the sawmill with the 4 main bed outriggers taking all the weight (tires off the ground), and the front/rear outriggers just barely touching the ground, so as to confirm the main bed is well supported. I check my blade guide angle regularly and it is generally flat +/- 1/16" over 12" length. I've checked my blade to bunk heights many times over this time period, and they've always been consistent. Sighting down the cant, it doesn't look like it's cutting flat. What I definitely notice as I'm cutting is the first couple feet of the board getting cut off will "peel up", then start to settle down as I reach the middle of the log. I've called WM a couple times when through this period, and the two pieces of advice I've received are: it's normal, try flipping 180 deg every few cuts to balance the stress in the log and also it could be a setup issue/improperly set up outriggers. Hey all, I've got about 500 hrs on my LT-50, and for the past few months (can't remember when exactly) I've been struggling with bowed boards.
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