chatter

[nanook]

I use a Wood Miser LT40. What is the most common cause of chatter marks when sawing?

[northwoods1]

Dull Blade, sawing to fast?

[pineywoods]

Loose main drive belt...assuming the blade is OK.

[bandmiller2]

Depending what you call chatter marks possibly some teeth set too much usally collaterial damage from hitting an unoticed nail.Frank C.

[isawlogs]

Chatter marques are more then likely advancing to fast into the log . You probably have a very sharp blade and are temted to go just that much faster .  ;)

[Tom]

when I was toying with tooth configuration some years ago, I found my first real chatter occured when the rake (Hook) began to exceed 13°.   I figured that the point dug into the wood, beginning at that angle, and the engine didn't have enough horsepower to drive it on through, or, there wasn't enough band stability, so the tooth bounced off. -chatter-

[Chuck White]

My guess would be a few teeth that had too much set in them.

[nanook]

The chatter marks seem to come and go. Don't believe its a dull blade or sawing too fast in this case. Sometimes occurs with both squared and round timber. I appreciate all the suggestions!

[ladylake]

How about a pic.     Steve

[Piston]

I also noticed this last time I sawed for the first time.  I figured I was going too fast with a dull blade.  For me it was in EWP and seemed to be every 2 or 3 feet, it would chatter for about a foot or so, maybe had to do with the whorls of knots?  I'm glad you asked this, I wanted to ask the same thing but didn't know what to call it  :D

[Magicman]

Chattering every couple of feet is generally just a (dull?) blade problem.  I've seen this a couple of times when I was trying to finish a job (generally oak) and didn't want to change a band for just one more log.

What I've learned is to change the band when it needs changing or before.  Now, if I have a full day's sawing, I just go ahead and change the band at mid-day.  That way unless I hit something I know that I'm good for the rest of the day.

[nanook]

Last time I noticed this was with a new blade that I had just put on the saw. If the set was bad it came that way from the dealer. I usually can tell a dull blade by tear-out or a wave when squaring stock. The main drive belt was recently replaced and if anything is too tight. Might the main body of the saw be loose and causing some vibration? Will send photo if I can get one. I do my sawing at the old farmstead which is some distance from my home.

[bandmiller2]

As a general rule chatter with machinery means something is loose.Even new bands can have faulty set  from rough handling bundled togather. Frank C.