bkooshian Posted May 7, 2011 Report Share Posted May 7, 2011 Okay, newbie question: I have a 2.5 hp router with a 1/2" collet that runs at a listed speed of 23,000 rpm. I have a 1-1/4" round-nose bit that I am using on black walnut. Should I be using a speed control with this bit, and if so, how do I determine where I should set the speed? Thanks in advance. Brian Quote Link to comment Share on other sites More sharing options...
rmac Posted May 8, 2011 Report Share Posted May 8, 2011 I don't remember where I got it, but I have the following chart taped above my router table. It gives suggested maximum router speeds for bits of different diameters. It's a starting point, anyway. -- Russ Quote Link to comment Share on other sites More sharing options...
Darnell Hagen Posted May 8, 2011 Report Share Posted May 8, 2011 I spin them as fast as I can without excess vibration. The tool will let you know when it's happy. Quote Link to comment Share on other sites More sharing options...
Dave's Not Here Posted May 8, 2011 Report Share Posted May 8, 2011 I don't remember where I got it, but I have the following chart taped above my router table. It gives suggested maximum router speeds for bits of different diameters. It's a starting point, anyway. -- Russ Russ, that's good info, thanks for posting that. Quote Link to comment Share on other sites More sharing options...
joestyles Posted May 8, 2011 Report Share Posted May 8, 2011 Good advice from Russ and Darnell. New bit first time use; I creep up on the right setting using a bit of scrap of the material I am going to use. Set lower than the speeds on the table Russ posted in the case of the bit you mentioned I would go to 16,000 rpm or lower then try a few cuts and up it to see how it goes. Speed controls and min max tables are nice but as Darnell says if it starts to vibrate it is going to fast and it may destroy the bit or the work if this happens. Quote Link to comment Share on other sites More sharing options...
bkooshian Posted May 13, 2011 Author Report Share Posted May 13, 2011 Thanks everyone for the good advice! I purchased an aftermarket speed control, but since (for obvious reasons) it didn't have the speeds listed on the dial, I calibrated it, then started slow and moved up to where I felt comfortable. The result? Next weekend, my niece will be receiving a walnut mancala board for graduation! Thanks again! Brian Quote Link to comment Share on other sites More sharing options...
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