Re: [CAD_CAM_EDM_DRO] Commercial vs. hobby controls was Re: Bridgeport CNC retrofit rec...

On Wed, 2003-12-17 at 03:01, ballendo@... wrote:

> Kim,
>
> Many great points. BUT...
>
> How many of them stand up without YOU in the equation???

I agree. However, even a stock TCNC package is pretty close to what
most stand alone controllers offer, even the old ones.

> In other words, how many people do you think could do the pascal
> programming you have done to make your version of TCNC? And of those
> who CAN program pascal, how many would have the time and inclination
> to help someone who knows machining, but NOT programming? (After all,
> you've just told us about two people who CAN'T get to where you are,
> or they wouldn't be asking you to set up their CNC...

Agreed.

> What this all leads to is that for most people, Doug is correct. An
> older commercial control (as he says, not necessarily 15 years old,
> when you have 15K bux to spend) will run circles-(and you know why
> I'm making that pun if you're familiar with TCNC-it currently has
> problems with feedrates in circles, even in the V4 beta)- around a
> STANDARD TCNC install...

V3 doesn't have these problems. I made my changed to V3, not V4 code.
I started with V3.24c to be exact.

> Once your mods make it into the TCNC pkg (if they ever do), THEN the
> argument(s) you've just laid out make sense for the "typical" guy...

> Having said all this, I do agree with some of your points. Ray Henry,
> I understand, taught himself programming so that he could do the same
> kinds of things with EMC that you have done with TCNC. And Art
> Fenerty is learning a LOT about what needs to be in a commercial
> level CNC control as he writes Mach2- he came from the programming
> side. So if the right person meets the right challenge...
>
> And I also agree that the timeframe for Doug's truth is diminishing.
> Hobby controls are getting a lot better, very quickly. Especially
> Mach2, IMO. TCNC, without your mods, IMO still has a long way to go.
>
> Right now, a guy who wants to machine, with 15k bux in hand, is
> better off with an older control he can use immediately. Unless YOU
> are going to update TCNC for his machine and HIS needs...

BTW: it isn't my doing that TCNC isn't updated with my mods. Powers
higher than me control whether or not this stuff makes it into the
public domain.

> Ballendo
>
> P.S. I also agree with your statements about the value of
> having "done it" yourself, so you can fix it...
>
>
> --- In CAD_CAM_EDM_DRO@yahoogroups.com, Kim Lux <lux@d...> wrote:
> > On Tue, 2003-12-16 at 09:40, doug.rasmussen@c... wrote:
> >
> > >
> > > Hi Kim,
> > >
> > > First off, I didn't mean to suggest buying a machine that old, I
> was
> > > only making the statement that I feel the commercial controls of
> > > that age generally have more features than the current hobby PC
> > > based
> > > types.<snip>
>
>
>
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--
Kim Lux <lux@...>