Stile and Rail

Some of you might remember my neighbor - wealthy, lots of very good tools, never really builds anything. Anyway, last evening he dragged me over to his shop as he was having problems with his new Stile and Rail set (Whiteside). The Stile cutter is working fine but the rail cutter is leaving quite a bit of burn.
I did note some very high frequency vibration when the rail cutter is installed - not when the Stile cutter is installed.
The cutters are brand new - days old.
Frankly, I failed to correct his problem but told him I would post in here and see if you guys had any suggestions. I'm a stair builder and rarely use these types of cutters.
Thanks
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Burning is typically caused by too slow a feed rate. If you think that maximum feed rate was being used and the burning was still being caused, then I'd suggest using multiple passes while taking off less stock at a time. That will let one increase the feed rate eliminating the burn.
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wrote:

Thanks Upscale. You are correct. tonight I watched what he is doing and the feed is much too slow. In addition, I found damage on the lower cutter (slotting cutter). If you can believe this --- he made a jig and to get the correct height he used sandpaper sheets. The sandpaper resulted in some very fine chipping to the lower cutter. he's too much - really nice guy but seems to have no common sense at all.
Thanks again, J
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When you say vibration do you mean with the router idling or only during cutting? If it's any time the router is running I'd suspect a defective/damaged bit. Inspect it very carefully under a good light with a magnifier and see if you can see anything obvious, also with the router unplugged turn the bit by hand while looking at it from the side against a background with some vertical lines and see if you can see any indication that it's bent.
Even Whiteside occasionally lets something slip through quality control and _anything_ can be damaged in shipping.
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On Fri, 10 Nov 2006 08:09:24 -0500, "J. Clarke"

All the time See my response to Upscale just above. I think the vibration might be caused by the chip-out leaving the cutter unbalanced. I also found he was not setting the bit deep into the collet. When I re-set it much of the vibration decreased.
Thanks, J
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Joe Bemier wrote:

Sounds like a bad bit. If cleaning the bit and collet and adjusting the router speed don't make the vibration go away get a new set of bits.

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You are correct, Ray
Thanks, J

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What size router is he using?(Horsepower rating) Is it a variable speed router? If it is what speed was he cutting at? Is he cutting the Stile in one pass? Is he trying to cut the rail in one pass? What type lumber are you cutting? Was the bit mounted correctly in the Router? Let us know.

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Good Gosh!
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I am sorry but it is not a yes or no type answer and there is more involved than what this person that is asking how to help is telling us so far.

in
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On Fri, 10 Nov 2006 08:58:08 -0500, "Jerry Dickens"

Thanks Jerry but it looks as if it was caused by feed rate and some bit damage - see above.
Thanks, J
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