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Started by roghair, April 07, 2013, 05:12:53 PM

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roghair

#50
June 17, 2013, 06:22:05 PM
Happycamper, The blades are sharp and set, but you have a point; I might push too fast with with too little engine speed through the knots. I will change that next time. Also I want to try 1½" blades, I have 3 of them from WM (Germany).
built a sawmill

Happycamper

#51
June 17, 2013, 09:13:08 PM
 Roghair,
It will be interesting to learn what you find especially running the 1 1/2" blade. I have found that if I go very slow through the large knots that the band doesn't raise. I'm also curious about your mill wheels if they tend to pick up the sawdust.
                                   Jim
Wether you think you can or you can't you're right

Okrafarmer

#52
June 17, 2013, 11:18:32 PM
Pines and other conifers are the ones that usually give me the wavy cuts. I have found the waviest cuts are closest to the surface. That is, they occur most when I am cutting the outer slabs off the outside.

Several things that need to be done, or that can help sometimes in cases like that:

1. Sharp blade
2. Proper set in the teeth
3. Proper tension on the blade
4. Proper alignment and deflection of the blade
5. Proper speed (go slower on the outer cuts of the log, than when you have it down to a square cant)
6. put the log on the sawmill such that you cut into the small end of the log first
7. Debarking the log can really help
8. Slow down for big knots
9. Keep your adjustable blade guide(s) as close to the log as possible
10. If you get your outer slab off and see humps sticking up on the cut surface of the log (cant), go back over it a second time after checking to see that your tension is correct.  Go slowly where the humps are to allow the blade time to cut properly through the hump.

These are things I have found that help.
He that dwelleth in the secret place of the most High shall abide under the shadow of the Almighty. Psalm 91:1

Operating a 2020 Woodmizer LT35 hydraulic for Upcountry Sawmill, Dacusville, SC

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roghair

#53
June 18, 2013, 03:59:13 AM
That's a good (check-)list, thx!

If I try to recall, you might be right indeed the problems are more in the outer slabs.
Also I sawed the big end first.
Next time I will put more attention to points 5, 6 and 8.

Jim, the wheels pick up some sawdust but not very much. At the end of the day I scrape them with the back of a knife. At least I can not have the problem with dust buildup under the (wheel-)belds  ;D
built a sawmill
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