Heard that ZINGGGG and was sure it was a nail...

[kelLOGg]

but there was no other evidence for it.
I was cutting out the middle 3 boards from an 18" clear WO and was 6" from the end on the last cut when I heard it and saw the blade dive 0.5" and exit the cant. "Had to be a nail". I confidently pulled out the 3 boards, dusted them off ready to see a bright shiny oblique nail. There was NOTHING! A metal detector couldn't find it either. I removed the blade expecting to see a curly metal shaving but there was none.  I had skimmed the bark off the log prior to sawing so there was no nail hiding in the bark. The cut pattern does show a tooth/(teeth) got reset. (It was my first time using a WM double hard). The abruptness of the effect suggests there was something right at 6" from the end. The squaring arms were down during the cut so I didn't cut part of the mill. Any ideas or similar experiences?
Bob

Here are 2 pics where the 2 cut surfaces facing up.



 



 

[Kbeitz]

Check to see if you still have all the fins on your engines flywheel.

[kelLOGg]

I wish I could say I cut an engine fin but it is more embarrassing than that. I DID nick a squaring arm. I coulda sworn it was down - must have been the previous log. Tune in to watch me eat crow.  :-[
Bob

[GAB]

I wish I could say I cut an engine fin but it is more embarrassing than that. I DID nick a squaring arm. I coulda sworn it was down - must have been the previous log. Tune in to watch me eat crow.  :-[
Bob

I can't speak for others, but I'll give you one free pass.
The blade however, is still on you.
Gerald

[WV Sawmiller]

Bob,

   You are now a full fledged member of a wide spread group of sawyers who know exactly how you feel.

[bandmiller2]

Kell, crow ain't bad if its fixed properly. Be wary of the sawyer that tells you he has never hit part of his mill. Frank C.

[Magicman]

OK, you found it this time but remember that it does not always have to be metal.  A small rock wedged in the bark will do the same thing, and a debarker will not always kick it out.

[Beavertooth]

Anytime you hit part of your mill deny it to the end.

[Kbeitz]

I wonder why the sawmill company's doesn't make a guard to protect
the blade from the stops? It's never in my way. Would it damage the
mill if the carriage would come to a stop?



 

[petefrom bearswamp]

Does the guard swing up out of the way?

[Jeff]

Anytime you hit part of your mill deny it to the end.

That won't work. 9 out of 10 times when you do something like that, it's when someone is standing there watching.

[kelLOGg]

Keibtz, I have a removable thing like that but it rarely got used because I became more attentive (until yesterday) so I took it off >:(. I will reinstall it now.

[WDH]

I found out last week that a woodmizer LT40 two plane clamp does not debark easily  .

Those debarker blades are expensive  :-\.

[dgdrls]

Me too, sometime in my past when I had my LT-10.   

Question did the ZINGG create the bow cut, as well as the tooth pattern, or is it an optical illusion?

D

[Kbeitz]

Does the guard swing up out of the way?

It does not move...
What would you want it to swing out of the way of ?

[YellowHammer]

Hitting metal happens, and it's a gift when no one is watching.  ;D
My debarker blade has a few teeth missing when I tried to debark the claw turner.  It didn't work although it did leave a really cool racing stripe in the claw.

[Skip]

My LM200 has a guard on it ,its not as stout as the one Kbeitz shows just a piece of  rod that you have to move it to change blades pretty simple

[Kbeitz]

I do know that my guard as saved a few blades for me.

[Ox]

I wonder if it's this type of mentality:  I'm in business selling mills and blades both, I'll design a mill without a stop guard on it so the new sawyers can mess up more blades and hopefully buy them from me.  I'd like to think not, but won't be surprised if it is.  :-\

[kelLOGg]

Me too, sometime in my past when I had my LT-10.   

Question did the ZINGG create the bow cut, as well as the tooth pattern, or is it an optical illusion?

D

It's no optical illusion - it is a big time bow cut.

[Dave Shepard]

I wonder if it's this type of mentality:  I'm in business selling mills and blades both, I'll design a mill without a stop guard on it so the new sawyers can mess up more blades and hopefully buy them from me.  I'd like to think not, but won't be surprised if it is.  :-\

I don't think any manufacturer would think that way. Do you think that an engineer would compromise their design to sell a few boxes of bands over the life of their company?

I don't know skit the urged, but my LT40 will cut four inches wider than the backstops. I wouldn't want to loose that capacity. There will always be things to hit, that's why you have to pay attention .

[Ox]

Tried taking a stab in the dark as to why manufacturers don't have a guard to keep you from sawing into the backstops.  It's the only thing I could think of!  ;D
Do you have an idea as to why they still let us saw the backstops?  And don't say cause you have to pay attention cause there's guards all around the mill cause, well, we don't pay attention all the time!
Come on everybody, don't be shy!  Chip in!
Oh, and vehicle manufacturers purposely make things extremely difficult to work on so you have to bring it (hopefully) back to their dealers to get it fixed.  They realized they can make huge money by designing it this way.  ;)

[Dave Shepard]

I did answer that question. To put a guard on would  limit the width of cut. Width of cut is more important than a guard. There are many opportunities to saw into things on a mill. To put a "foolproof" device on every one of them would render the mill close to useless, and then you would complain that manufacturers were making mills for the lawyers and not for people with common sense. Like 4x4 says, sawmilling ain't for sissies.

[Deese]

Does the guard swing up out of the way?

It does not move...
What would you want it to swing out of the way of ?

Kbeitz, my sawmill has a guard similar to yours, except that it can be retracted upwards if needed. I have had to move mine out of the way on countless occasions, mainly when cutting live edge material from irregularly shaped logs, or logs that have protruding "stobs" where the limb wasn't cut flush with the base. For me down here, that would mainly be eastern red cedar, Osage orange, or pecan.

[Ox]

Dave - But see, you lumped all mills into the very same category as your LT40.  What you say must be true for your LT40 and all others grouped into the same series as yours.  This cannot be the same for ALL mills, right?  See what I mean?   For instance, with my mill I wouldn't lose a thing width wise if I had a bump guard mounted like Kbeitz has.  Apparently his mill has the same thing where he doesn't lose anything.  I agree that we have to be on point when milling, no doubt. 
I'm still asking others' inputs as to if this type of bump guard is a good idea, why the manufacturers don't mount it on their mills (not including LT40s like Dave's) and why they think it hasn't happened as a good solid design idea.