Scorch marks

[Roxie]

I am routing grooves in American white oak using a 45 degree cutter, they are about 5mm deep. I am getting scorch marks at the end of the groove. Can anyone give me advice how to overcome this problem.

Thanks

John

 

[Chems]

Slow the router speed and increase your feed rate. Are you using extraction, waste can get stuck in there and cause a bit of burning. Is the cutter sharp?

 

[motownmartin]

I guess its because you are at the end of the cut and your cutter is left in one spot for too long, its like Bear Grylls making fire with a stick spinning in a hole.