NO matter what you do, you'll probably be experiencing some burning. It may mjust take longer to notice it. One thing that will help a LOT is to not plunge straight down into the wood. Try to always ramp in at an angle. On our machine at work, we cut 3/4" plywood at 300+ ipm at 15-16K rpm. When we first got the machine, we used to always plunge straight down. Bits would get burned very quickly. Since we started ramping, we get much better tool life.
Even at the speeds we cut at, tools still get incredibly hot. Heat dulls bits, dull bits run hotter... vicious cycle.
__________________
Gerry
Mach3 2010 Screenset
http://home.comcast.net/~cncwoodworker/2010.html
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management) |