Re: Beginning User

Eric, using your woodworking dust collection system for metal chips
is a bad idea. The main reason being that fine dust particles can be
explosive. The metal chips hitting the ducting or fan at high
velocity may cause a spark that can ignite it. Also, you need higher
velocity to collect metal chips than for wood, and the metal chips
are more abrasive and will wear your system out. Some comercial
cyclones for metal chip collection have a rubber liner to retard wear.

~petev

--- In CAD_CAM_EDM_DRO@y..., "exeric1" <exeric1@y...> wrote:
> Recently I purchased a CNC jr. I'm very happy with it for the most
> part but there doesn't seem to be very much native G code for it.
> There's no G code for tool diameter (radius) offset for example. It
> looks like I'll have to get a cam program sooner rather than later.
I
> will be using AutoCad Lt for the design portion. I'm interested in
> suggestions for a cam program that will work well with such a
> restricted native G code. I don't need any design features in the
cam
> program since I've already got CAD. Any info would be greatly
> appreciated. I really would rather not pay more than 600 or 700
> dollars.
>
> Another question I have is about using cutting fluids with CNC. The
> system I have that came as an option with the CNC jr seems like it
> puts out too much - It makes a mess of everything. Are there any
good
> ways out there to manually control the flow. Also I would like to
use
> a vacuum system for the metal chips that I already have set up for
> woodworking. What's a good method to get the chips without sucking
up
> the cutting fluid? I've got a recirculating system for the cutting
> fluid and its too expensive to just get sucked away. Thanks in
advance
>
> Eric