Wow this is all new to me.....I know cars better than wood. 

Is exploding wood just one of those "fact of life" things like cam slop in the B
series BMC engine? Or is it more like orange peel in paint and it's hard to
avoid bit if you know how....

I LOVE the phrase tailed apprentice. 

I am seriously looking at adding a couple. I've developed carpal tunnel and am
at a PoDR where if I stick hard to the no electrons principle I may not be able
to do as much as I'd like.

Doctor is saying I change something, or end up having the CT release surgery. I
don't usually trust doctors so if anyone has advice for avoiding carpal tunnel
I'm open to alternative medicine.

Bourbon, Scotch, vodka all off the alt medication list for me.....lifestyle
choice. :)



On Aug 3, 2015, at 6:19 AM, Michael Blair  wrote:

>> Before my ill-fated rip cut, the board looked straight and true, with no
>> indication of internal stress.
> 
> We used to call that phenomenon "case hasdening."  The exterior of the wood
> is straight and true, but a little deeper into the piece the stress is
> tight.
> 
>> Serves me right for using a tailed apprentice!  Still, it is a poor workman
>> who blames his tools . . .
> 
> If it's any consolation, the same thing would have happened if you hand ripped
> it.  It wasn't you.  It wasn't the tailed apprentice. It was the tension
inside
> the wood.  I've had it happen numerous times.  Alder, pine, redwood have all
> done this for me.  The most exciting time happened when one of my partners was
> running a four inch thick by 26 inch wide piece of cottonwood through a tailed
> apprentice planer.  From deep inside the machine, we heard a loud boom when
> the inside of the timber was released from its bondage.
> 
> Mike in Sacto
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