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Unread 05/12/2010, 09:24 PM   #25
IronMan72
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Join Date: Apr 2010
Location: Cheektowaga, NY
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Quote:
Originally Posted by BeanAnimal View Post
I suggested the rough cut first for a few reasons:

1) so that he does not have to deal with supporting the waste piece. This will prevent cracking and/or binding when the piece sags as material is removed.

2) less depth of cut means less (or no) grabbing

3) less depth of cut meanns less need to regulate feed rate which lessens (removes) the possibility of burning up the bit

If he DOES decide to plunge cut the piece, then it should be done resting on a sacraficial surface and he should use a 1/4" UP SPIRAL bit, not a straight sided cutter.
Sorry, I wasn't suggesting that your method was wrong. I was simply suggesting another method that I think would require fewer steps. There is certainly more than one way to cut a rectangular hole in a sheet of plywood and any of them will get the job done.


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