View Full Version : Round over bit making "furry" edge
foamman
03-30-2008, 12:22 PM
Hello,
I am cuttenly working on a project where I use a plunge point round over bit to profile cut and round the edge of a crossbow stock all in the same cut. I keep getting what I can only describe as Hair or Fur on portions of the cut. Even if the cut is with the grain of the wood. The wood is spruce and I am running at 2FPS.
Any thoughts?
\image wood fur\popjpeg{29306,Wood Fur}
steve4460
03-30-2008, 01:37 PM
try 2.00 " IPS
Bot on
foamman
03-30-2008, 06:13 PM
Thanks for the feedback. My post has a missprint, the speed is only 2IPS. Not 2FPS. My machine can't go that fast.
Thanks
Gary Campbell
03-30-2008, 07:52 PM
Ben...
Have you tried running the spuce thru any other tools? Some pieces of wood just fuzz up by nature. Spruce, Poplar and Alder are some of the most likely to do this. Maybe try a different piece.
You might want to try a climb mill clearance pass of .010-.015
Gary
myxpykalix
03-30-2008, 09:05 PM
You might check the moisture content of your wood also. I had some fresh cut maple that i turned some spirals on and when i finished it was like it grew a coat of fur. That probably raises the grain?
jseiler
04-01-2008, 08:13 PM
If you are planning on finishing this somehow, you might consider spraying finish on the edge, and giving it another pass. If I'm not using stain, sometimes I go with bullseye lacquer. It dries pretty fast and stiffens up the fuzzies enough sometimes to get to cut clean.
Sanding mops can clean this up sometimes in post processing. I like this one (4" double height)
http://www.rjrstudios.com/Merchant2/merchant.mvc?Screen=CTGY&Store_Code=RJR&Category_C ode=MP
John
oscarg1971
04-02-2008, 12:49 PM
Make sure bit is sharp too. -Oscar
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