Re: BobCad/Cam

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "wdp67" <wdp67@...> wrote:

>
> Hi all new member here needing a little help with Bobcad.
>
> I purchased version 20 and am having trouble setting it up for use for
> use with Mach3. For example I do a profile, then I call for a tool
> change and do another part of my machining. I can see the g code for
> the tool change but when I run it in mach 3 it just zips right on by
> not stopping for a tool change.
>
> Any help would be great, I am a newbie so be gentle please.
>
> Walt
>

1. Make sure it's a valid toolchange call with an M06 and Toolnumber
2. In MACH3 Config/Logic there is a Tool Change section (upper left
in the window) You have choices as to what MACH does when presented
with a toolchange. Set it to stop and wait for a Cycle Start.


I prefer to control the toolchange closer so in SheetCAM (my choice of
CAM package) there is an option as to what the Post will output given
a logical toolchange. You can write any g-code script you want and it
automatically inserts it into the code. I leave the toolchange option
turned off in MACH and have SheetCAM:

Turn off the spindle
Raise the head to toolchange height
Rapid over to a toolchange postion
Pause until I hit cycle start (Run)

There may be some way to modify the BobCad post to put distinct g-code
commands at a toolchange and have it control things instead of having
MACH3 stop on a toolchange.

Tom Caudle
North Texas

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