Replies

1. 
   sschefer | Jul 06, 2002 06:12am | #1

   Yes, I have an idea how to fix the problem but it sounds like you've already done your cutting so just sand it. In the future, you might want to buy a book and learn how to climb cut. Its not difficult but it can be dangerous so I wont explain the process here. When you read about it you'll understand my lack of willingness to explain in detail.

   Steve - in Northern California

1. 
   EricAnderson | Jul 06, 2002 09:54am | #2

   Oh, I climb cut and possibly it would have helped here.  In fact, on one area where I was cutting almost parallel to the grain and I was afraid of splintering it, I did climb cut.  What I was wondering was if a smaller diameter bit might have presented a blade edge such that it might not have torn the fibers?  In other words, what would the difference in diameter of a straight bit make in this case in the edge quality?  I know that the peripheral speed would be higher, but other than that, what would the effect on the surface quality of the wood be?

1. 
   dhpascoe | Jul 06, 2002 11:43pm | #3

   My experience is that dull bits cause a lot more tear out than sharp bits, and sm. diameter more than larger dia. When routing a large circle, I try to judge grain direction, and not just take the router around the circle, but divide it in quarters and try to go the direction of the grain. Not easy to judge, but always gives better results. If I were doing a solid table top, I wouldn't use anything but a new bit. Hope this helps,

   Dave

2. 
   Oregonshank | Jul 07, 2002 10:12pm | #5

   I think you are on the right track Eric, bit size does matter quite a bit in my experience. I use a 1 1/8 dia. pattern cutting bit to cut most of my work that requires a nice edge (like table tops). Be sure that it is sharp too! The other problem I think you are having is the poplar, which is fairly soft and prone to tearout, even on the end grain. Good luck.

   Steve

2. 
   maddylou | Jul 07, 2002 05:53am | #4

   Experience tells me to make sure the bit is sharp and if it is a straight bit, make sure the cutting edge tapers to provide you with a "slicing" angle of cut and not a 90 degree chipping cut.  I hope you understand that.  Also, feedrate and speed of the router have a lot to do with getting a smooth cut on end-grain.