Re: [CAD_CAM_EDM_DRO] Indexer LPT

Oh,

I wanted to add that until Ability finally came out with the new windows G-code interface, it was an "open" market for anyone to make an interface. Some have made different things but they have been DOS. If you are into
programming, I don't see how it could have been that hard to do in that you simply need to translate G-Code to the correct language.

One item not applied into the program is backlash comp. I had a very interesting discussion (actually a listening session) With Art as to why it is not implimented. He made very clear to me he will be adding it, but, that it
is not just a matter of "if you have X amount of Slop in a machine, just add or subtract steps". His programs capability of multi axis moves would take some time to really make backlash work correctly and he does not want to
just install a lesser technique. So, In the meantime, Why not build a machine without backlash !

I think it is still possible to purchase the two parts of the program separate. Because of the way this TSR control works, I'm sure many will point out that it is not "realtime" in the common sense. About the only thing I can
think of that some would miss Is the constant update of location though it runs by so fast who can really figure it out? Then again, I run a Router and it moves a bit faster than a mill. The program will only update when you
pause or stop motion. When a control works good, I guess this would not bother me.

I'd be curious to hear from the "open" control guys if this is or is not open. I know some actually ran this thing out of an excel spreadsheet to create code. Sounds kinda "open" to me.........

One really important thing to remember if you hang it on a driver, is that it uses a negative trigger to change "step". If your set wrong, you will lose steps in a most calculable way.

Chris L

Art Fenerty wrote:

> Hi All:
>
> I was just reading the Indexer LPT site. Does anyone here have experience with it. Is it a software only solution which runs at 90,000 pulses per second? How do you find it runs? How is it's constant velocity contouring?
> Is it a driver that loads prior to windows? Sounds like a great solution, I'd like to hear about its performance if anyone has driven it.
>
> Art
> Master5 Software
> http://users.andara.com/~fenerty/master.htm
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