End of edge problem - Router Forums
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post #1 of 12 (permalink) Old 03-06-2016, 05:34 PM Thread Starter
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Default End of edge problem

I'm routing an ogee edge completely around a board. When I get to the end of the intake side of the fence the board wants to jump into the bit leaving a dent/mark.

How do I stop this?

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post #2 of 12 (permalink) Old 03-06-2016, 05:39 PM
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bearing guided bit???

This would have been the week that I'd have finished chewing thru the restraints...
If only new layers hadn't been added....

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Forget the primal scream, just ROAR!!!
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post #3 of 12 (permalink) Old 03-06-2016, 07:54 PM Thread Starter
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bearing guided bit???
Yes it was a bearing guided bit.

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post #4 of 12 (permalink) Old 03-06-2016, 08:02 PM
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close the opening on the fence to the bit as tight as you can w/o tearing anything up...
set the fence flush to the bearing - both the infeed and outfeed sides...
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This would have been the week that I'd have finished chewing thru the restraints...
If only new layers hadn't been added....

Stick....
Forget the primal scream, just ROAR!!!
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post #5 of 12 (permalink) Old 03-06-2016, 08:16 PM Thread Starter
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close the opening on the fence to the bit as tight as you can w/o tearing anything up...
set the fence flush to the bearing - both the in-feed and out-feed sides...
I called myself doing that even pushed the sacrificial fence halves in to the bit. Once the board passed the in-feed side the bit sucked it in. I lined the bearing not flush with the fence but 3 hairs inside.

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post #6 of 12 (permalink) Old 03-06-2016, 08:39 PM
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Are you using a backer board? If you aren't you should be - that will prevent the bearing from losing contact until the work piece has cleared the bit.
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post #7 of 12 (permalink) Old 03-06-2016, 09:37 PM Thread Starter
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Are you using a backer board? If you aren't you should be - that will prevent the bearing from losing contact until the work piece has cleared the bit.
Use a scrap piece of wood to push the work piece past the bit?

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post #8 of 12 (permalink) Old 03-06-2016, 09:52 PM
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Use a scrap piece of wood to push the work piece past the bit?
preferably one that is the same thickness as the work piece.

Not like a push stick that you would use on a table saw.
something like this picture.
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post #9 of 12 (permalink) Old 03-06-2016, 10:17 PM Thread Starter
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preferably one that is the same thickness as the work piece.

Not like a push stick that you would use on a table saw.
something like this picture.
Thank you sir and you to Stick
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post #10 of 12 (permalink) Old 03-07-2016, 12:34 AM
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If you can take a straight edge and push it past the bearing without making contact and turning it then there is almost no way that your board should dive in. There are only a few logical possibilities.
1. the in feed fence sticks out farther than the out feed does. Check with a good straight edge.
2. you aren't routing the entire profile in the first pass until the bit gets to then end of the cut. As you feed in, the router bits natural tendency is to push the wood away from the fence. (For every action there is an equal and opposite reaction.) Try running the boards through a second time and see if that solves the problem.
3. you are cutting a profile that removes the entire edge leaving nothing registered against the fence that you started out with. Use double sided tape or brads/pins to attach a second board on top of your work piece and let it stay registered against the fence.
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