Trim routers and rotozips

William Scalione wrote:

> To those contemplating using a trim router or one of those rotozip tools
> in a CNC router, you may wish to spend the extra cash and get
> a better router. I bought a Sears Craftsman (Ryobi) "professional"
> trim router to use for a machine I built. They were not designed for
> continious duty use and as such, the bearings wear out quickly. Mine
> was made of plastic and the bearing support distorted with use causing
> about .125" play in the spindle after just a short time.

I use a Sears "Die Grinder" model 315.27440 26,500 rpm 2.5 amps.
I like it alot. It has a long nose, good for reaching into tight valleys,
and can be mounted nicely because theres a machined circular band
halfway up just above four housing screws. Making an aluminum
mount (3/8 or 1/2" thick) with a 2.57" dia hole, and securing it with
countersunk allen-head capscrews makes a nice sturdy arrangement.

Also, the cooling air from the motor blows out just below this
mount, blasting away the swarf. There is also another machined
ring 1.375" dia just above the bit (pull off the rubber to see it),
which could be used for mounting, but I don't.

Doug Fortune