Replies

1. 
   Major_H._Patterson | Nov 25, 2001 02:55pm | #1

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   J.D: With a set of matching cutters,try making the cope cuts on the rail ends first. Use a backup block to prevent splintering. There should be no problem with the sticking on the long grain.¬¬¬¬¬¬¬¬PAT¬¬¬¬¬¬¬¬

1. 
   Rob_Millard | Nov 25, 2001 03:54pm | #2

   *I guess there is 2 ways to interpret your question. One way, is that you are having tearout on the edge profile. If this is your problem, I would say taking light cuts would solve it, and paying attention to the grain direction, would also help. If your problem is tearout on the endgrain while doing the cope cuts, then the best way to deal with this is to make one or more wide pieces, and cope the ends. For instance, if you need 4 2inch wide rails, make one 8 wide board. Then rip to width, and run the edge profile. You will find that this approach is safer, and much easier. I hope this helped.

1. 
   Jeff_Telecky | Nov 25, 2001 06:29pm | #3

   *Actually the problem I am running into is with the sticking on the long grain, every once in awhile I get a little bit of tearout. Sounds like making more passes removing less stock maybe the answer correct?JD

1. 
   Major_H._Patterson | Nov 26, 2001 12:14am | #4

   *Mebby so.¬¬¬¬¬¬¬¬¬PAT¬¬¬¬¬¬¬¬¬¬

1. 
   Rob_Millard | Nov 26, 2001 04:01am | #5

   *I have attached a scan taken from my shaper book showing the way to feed stock, for the best finish. Of course the router lacks the ability to reverse direction like the shaper, so you'll have to go by the drawing at the top of the scan. Working this way, and taking lighter cuts, you will get perfect results. Another way to avoid tearout, is to take a climb cut, which is done by feeding the stock with the rotation of the bit. This is not easy to do with large cutters, but it does prevent tearout. Don't try this with narrow stock, or if it makes you uncomfortable. I will do this with a hand held router, but I never do it with the shaper, and I rarely do it with table mounted routers.

2. 
   Jeff_Telecky | Nov 26, 2001 05:47am | #6

   *Thanks much for the info.JD

3. 
   Jeff_Telecky | Jan 12, 2002 01:09am | #7

   *As a follow up question I was recently at a woodworking show and the Sommerfeld/CMT tool demonstrator suggested goose cuts to mitigate this problem. He said that the tearout was caused by the surface tension in the red oak and to relieve that tension they take the rail and cut in to it to the depth of the bit at about 2 inch centers along the entire length. Then profile it as normal along the same edge and the problem is eliminated.Anyone have any experience out there using these goose cuts?ThanksJD