Re: CNC Process

Hi Cadman,
Looking at your design from the front, the table needs
to move back to the right. The tool needs to move up! The bottom
left corner is X0 Y0. The direction of the tool not the table is
what you are shooting for. Your design is simular to my second
machine. I am building my fourth machine right now. I also use
CNCPRO. Check out my website:


http://www.geocities.com/crankorgan/

John

--- In CAD_CAM_EDM_DRO@y..., cadman@p... wrote:
>
>
> I am new to using a CNC machine. I built a small (made of wood) 3
> axis mill so I could play and learn with. Later I will purchase a
> Drill/Mill and convert it. As of today I am using CNC-Pro
>
> I don't have any problems with the CAD/CAM software side of
things.
> It is running the machine that has me stumped. The areas that I
have
> questions are:
>
> 1. Home position.... When I press the Home button it moves my
> axis all the way to one side and sets the coordanants to 0,0,0
should
> this be left at 0,0,0 or should I touch my tool on top of the
material
> and call that 0 in the z-axis?
>
> 2. When I need to change a tool I will loose the z-axis tool
> location. do I again touch the tool on the top of the part for z=0
or
> should I re-home?
>
> 3. If I rough the part and loose the top of the material (by
cutting
> away all the material on top) How can I set the tool again?
>
> I am so confused about setting the machine up for a job. I have
the
> limit (home switches) set at the far positive position in all
axis. Z
> moves up. X table moves to the left. Y table moves to me. So
this
> means that the tool in relation to the table will move Z-up, X-
right,
> Y-Away.
>
> When I use the homing feature it sets 0,0,0 at the home position.
> This means that I always cut in the negative space. Is this
correct?
> What is the best method?
>
> Thanks
>
> CADMAN