Re: [CAD_CAM_EDM_DRO] Re: programming by hand

Joe:
some years ago when the machine were I work got the controller replaced they
put on the latest (at the time) fanuc om10 with conversational controller
can you believe that I have not used it to make more than 2 parts on all this
years? the problem is that on my opinion if you learn gcode before conversational
programming it is very hard to adapt to a system that is a bastard to follow and edit
Just my opinion but I like to take control of what the machine is doing
regards mariano



Joe Vicars wrote:

> Sorry Doug I wasn't clear enough.
> The person I was responding to was talking about entering G-Code as text, line by line. You're talking about conversational at the
> machine control.
> I agree, conversational can be a real time saver.
> Only problem being that most of the inexpensive controllers don't have conversational. This was a really long thread about 2 months
> back about nobody offering an affordable conversational package.
>
> dougrasmussen@... wrote:
>
> > Joe,
> >
> > No so sure I totally agree with you. Probably 98% of our programming
> > for my 4 cnc's is done on the shop floor. I like to think we're
> > pretty efficient. Most of our work is close tolerance prototype
> > stuff.
> >
> > Given the modern graphical controllers with a good assortment of
> > canned cycles, the need for CAM is diminished. Don't forget it's the
> > exception to run into a part which is not made up of a few
> > rudimentary shapes which can easily be handled by canned cycles.
> >
> > There's some great advantages of using the control's canned cycles
> > also. It's very easy to modify the program (usually just one line of
> > code to completely program a rectangular pocket including step
> > milling, corner radius spec, plus a finishing pass, for example...
> > that could easily equal 50+ lines of code from a CAM system), but one
> > of the biggest advantages is the canned cycles use cutter radius
> > compensation. So, if for whatever reason a feature does not come out
> > on size it's easy to change it slightly by changing the cutter
> > diameter in the tool offset table. Try that with a CAM generated
> > program.
> >
> > And, yes, everyone will need a CAM system at some point. Irregular
> > pockets are difficult using canned cycles. But, I think their need
> > is overrated. On the other hand a CAD system is a must.
> >
> > Oh, yeah, here's another reason in favor of hand programming....you
> > get to cut the parts the way you want not the way the CAM system
> > wants.
> >
> > Comments?
> >
> > thanks,
> >
> > Doug
> >
> > --- In CAD_CAM_EDM_DRO@egroups.com, Joe Vicars <jvicars@c...> wrote:
> > > It would only take about 40 hours of writing G-code "by hand" to
> > offset
> > > the cost of a decent CAM package. That's about 2000 bucks at
> > average
> > > billing rates.
> > > Anything but the most rudimentary code writing would quickly run
> > into
> > > labor cost that would far outweigh the cost of CAM.
> > > If your controller won't take a floppy or RS232 or whatever then
> > that is
> > > another matter, but then you probably need to upgrade the control.
> > The
> > > same amortization would apply to the control upgrade.
> > > It just depends on how you cost out your time. Most hobbyists don't
> > > bill their time as money, so a few hours of code writing is cheaper
> > than
> > > 500 bucks cash money.
> > > Still, it is awfully inefficient with all the stuff available.
> > > My $.02
> >
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