Re: Is This True or Bad Information

This e-mail seems to infer information not addressed.

there is no reason you cannot use your CNC machine for making
brackets, hangers, propellers, finger rings, other jewelery and
pretty much any metal part.

Your mill will be, I assume, 3 axis with the very simple possiblility
to add a 4th axis.

For stainless steel parts and carbide cutters, you would not want to
go nearly that fast. I think I was milling some hard steel a few
weeks about at around 500 RPM. Drilling tiny holes (1/16) in
aluminum I use 3,600 (top speed) on one machine, 10,000 RPM on
another and 25,000 on yet another.

What type of work do you want to do ? that would help us a lot
better to know what is needed as far as machining goes. And, chances
are, there are people on here doing the exact same thing you want to
do.

Dave









--- In CAD_CAM_EDM_DRO@yahoogroups.com, "mikenln2000"
<msheeley43@m...> wrote:

> This is a letter forwarded to me by a friend, he knows I am in the
> process of converting a homier mini mill to cnc, using stepper
> motors and The Motion Group 4 amp three axes controller and a
> laptop... I am making my drawings with autocad and coverting them

on

> bobcad and turning them into g-code, the contoller runs maxnc and
> seems to operated fine with motors hooked up and running with the
> code on the kitchen counter, still have to get the pullys and

belts,

> make the brackets and mount the motors, limit swithes, optical
> homing switches. What are your comments about this letter forwarded
> to me. Should I give up on my project or proceed full steam ahead.
> Mikenln
>
> Dear William,
>
> The deceiving part about the CAD CAM world is that in order to
> make
> most parts yourself (without sending them out) you need to know
> two
> programs. The first program like Artcam, Rhine Matrix,
> Cimigraphy and
> Type3 does the design work producing all the dimension and
> surface
> relief of the item. The second program runs the CNC mill or

solid

> modeling machine and turns the design program file into an

actual

> item. This is not the case with every system, but is most of the
> time. With any CNC mill the most important part no mater what
> anyone
> says is the speed of the spindle. If the speed is not up around
> 15,000 rpm don't but it.
>
> Best Regards,
> Todd Hawkinson
>
>
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