I bought a 36" Hudson bandsaw mill. I can't get it to cut straight boards, especially from smaller logs. Does anyone else have this problem with sawing, and know what to do?
(Sawing and Drying Forum)
From contributor P:
I have the Hudson Oscar 30".
Wavy boards can be caused by:
1. Blade not sharp (try a new blade).
2. You are sawing too fast (slow down, especially if you see a knot coming up).
3. Improper blade tension (read the manual and do the Flutter Test with the guides moved out of the way. You can get wavy boards if the tension is too high, or too low).
4. The guides are adjusted wrong. You need about 3/8" between the back of the blade and the roller guide, so when you are pushing hard, the blade just hits the roller. If you have the ceramic guides, take a putty knife and make sure there is no pitch build-up (do this every day). Also keep the guides as close to the log as possible.
5. You can also call Woodmizer (who make the blades for Hudson), and get them to send you a blade with a different pitch or hook angle (ask for a blade consultant). There are other blade options out there for frozen wood, of different species. Also, sometimes the first cut into the log (on small logs), or you are taking a thin slab, does sometimes come out wavy, even with the precautions above. I will sometimes rotate the log an extra time (at the end) and skim off 1/4" to take out the wave from the first slab.