Re: Wood Router clearing chips

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Ron Ginger" <ronginger@a...>
wrote:

> Ive just finsihed a new wood router to make model parts. It is

16"x32" and I

> want to do most of my cutting with the smallest possible bit- Id

like a

> laser, but thats another project. Im going to cut mostly thin stuff-

3mm

> plywood, 1/16 basswood and some plastic sheet.
>
> I have ground a single lip 1/16" dia tools and it cuts very well at

about 15

> in/min and .100" deep But it leaves the cut path tightly packed

with chips.

> It cant be cutting clean with all those old chips stuck there.
>
> What will help clear the chips? I treid slower feeds, but then the

chips

> burn and smoke, obviously worse. I tried faster and the tool seems

to 'swin'

> around a bit, causing errors in the cut line.
>
> Pic of the machine are at http://plsntcov.8m.com/CNCrouter.htm
>
> ron ginger

Ron, you need a bit with an agressive "up" twist to pull the chips
out of the cut. We have had good luck using the cheap resharpened PC
board drill bits and small router bits. If you want a flat bottom on
the cut you will need to grind the ends of the bits flat. You can
get assortments for 5 to 7 bucks. 1/16 is a common size and there are
others of smaller diameter. With the cheap bits it doesn't hurt so
much when you snap one. Just take several passes for deeper cuts.