Frozen spruce

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Frozen spruce

Postby leo.diamond » Mon Nov 29, 2010 8:54 am

Climate change!!
Up until last year our mild weather in Ireland meant no worries regarding frozen logs.
However last year we had a month of arctic weather and it seems as if it is starting again this year.
We break down the logs with 5'3" twin bandsaws with stellite tips (1 3/4 pitch)
Can anyone advise a solution to our snaking problems?
I know that slowing saw speed is necessary but changing pulleys for such a short time is hardly worth it.
I have heard that grinding every other tooth can help.
Any advice would be much appreciated.
leo.diamond
 
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Re: Frozen spruce

Postby jowens » Fri Jan 27, 2012 6:53 am

I WOULD ENCOURAGE GOING TO A FROST TOOTH USE TWO WHEELS.WE USE A .750 AND .125 WHEEL WITH TWO BLOTTERS GLUED BETWEEN THEM
jowens
 
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Re: Frozen spruce

Postby davidcleminson » Thu Feb 23, 2012 2:40 am

Over here in Scotland, we suffer alot of part frozen logs, as the frost rarely seems to penetrate the logs completely, only the ends and outer logs in the log piles. For years now, I have ground a notch into the front of the stellite tips and this will allow you to cut at normal speeds. It ruins your tip life, but allows you to get going in the winter. I use an old CBN wheel and square off the corner and set my height on the sharpener to allow it to grind a 3-4mm depth notch by 1-2mm into the tip. This will change as you sharpen the top and front of the tooth, with the notch gradually disappearing. Keep notching if need be, but your saws will have to be retipped more regularly. I took this idea from a sawmill up in the north of Sweden.
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