On Thu, Apr 16, 2009 at 12:34:03PM -0700, Kirk Wallace wrote: > Hopefully the wood guru's here will chime in.
You've covered almost everything, Kirk. It's a few years now since I did much routing [1], in kiln dried Australian hardwoods and a little in waxy tropical hardwoods. I'd only emphasise the "swarf" clearance issue already raised. When routing a deep slot with a narrow (e.g. 1/2") cutter, a six inch length of open slot can become packed with compressed shavings in a fraction of a second, as the cutter hoes into the end of the slot at 27,000 RPM in an 1800W router. If the workpiece design includes a shallower surrounding recess, cutting to width first, to facilitate egress of shavings, can obviate digging them out later with a screwdriver. The only other thing which comes to mind is that kiln dried hardwoods can be brittle (at 27,000 RPM, anyway ;), and climb cutting in several shallow passes cured the almost explosive splintering which occurred when down cutting with a 2" diameter cutter, even along the grain. Climb cutting is easier to program than inspection of the grain, to find where to cut with, rather than against it. Oh, keep the router moving. Australian Blackwood (which looks a lot like walnut, though can have coppery tones) will char too deeply to sand out, if the cutter is allowed to rub in situ for a half second. Redgum doesn't like it a heck of a lot either, so some of your woods might be sensitive too. Erik [1] One job was 800 meters of hefty routing: Two passes on two arrisses of 200 m of hardwood decorative beams. At least the wheelbarrow loads of shavings could be used to fill hollows in the garden. -- Each year, humanity's ecological overdraft gets larger, ... and nature doesn't do bailouts. - Andrew Simms ------------------------------------------------------------------------------ Stay on top of everything new and different, both inside and around Java (TM) technology - register by April 22, and save $200 on the JavaOne (SM) conference, June 2-5, 2009, San Francisco. 300 plus technical and hands-on sessions. Register today. Use priority code J9JMT32. http://p.sf.net/sfu/p _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
