Am 15.07.2013 um 00:59 schrieb Stuart Stevenson <[email protected]>:
> Gentlemen, > I remember the good old days when I learned to run the cnc controls Fanuc > 5T and GE 1050 mill control. > I could be running in AUTO mode. Hit single block to stop the program > processing at the end of the currently processing block. Switch to MDI to > input a control command OR MAN/STEP to do some thing with the machine. As > long as I did not hit the reset button I could switch back to AUTO, hit > cycle start and the machine would take off as if I had done nothing in MDI > or MAN. Could you summarize which kinds of changes are possible when switching from AUTO to MAN (or MDI a bit) AND which remain in force when you cycle start? (because that's a hard case) example: machine position - does it revert to where it left off? what for offset changes? tool diameter? > It was not unheard of for the operator to change a modal command or > position the machine incorrectly and when the cycle start button was pushed > the machine would do something unexpected but that was the operator's fault > not the machine. > This was very convenient for a competent operator. > I believe many machines function in this manner today. > > Another 'feature' I have found hardly useful is to be able to hit feed > hold, switch to MAN, move the machine to change a broken tool, reset the > TLO, switch back to AUTO, hit cycle start to restart where the machine was > put in feed hold. When they first put this in the controls I thought this > would be very cool. I found I used it so seldom I did not learn to use it > at all. If you are watching the machine process properly you will be able > to change tools prior to tool breakage in almost all cases. which operations are important to have during feedhold? (that's another hard case) > > I did run a machine once, I don't remember the control, that I could change > the TLO or Work Piece Coordinates and the machine would complete the > currently processing block as prior but the next block would incorporate > the changes I had made. I DID LIKE THIS. that's a good case for delaying binding offsets and TLO to motion time, this is done way too early now which is why this doesnt work for this to reliably work we need a reliable motion ID first (which must be a guaranteed-to-be-unique wrt line source context); the current one isnt, I'm rather sure it is possible by appropriate choice of linenumbers of subroutine definition and call statement to generate motions from two blocks which have the same motion id it is back to square one: we must fix the known-to-be-broken fundamentals first or we'll never get beyond patching around -m > > thanks > Stuart > > > -- > Addressee is the intended audience. > If you are not the addressee then my consent is not given for you to read > this email furthermore it is my wish you would close this without saving or > reading, and cease and desist from saving or opening my private > correspondence. > Thank you for honoring my wish. > ------------------------------------------------------------------------------ > See everything from the browser to the database with AppDynamics > Get end-to-end visibility with application monitoring from AppDynamics > Isolate bottlenecks and diagnose root cause in seconds. > Start your free trial of AppDynamics Pro today! > http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk > _______________________________________________ > Emc-developers mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-developers ------------------------------------------------------------------------------ See everything from the browser to the database with AppDynamics Get end-to-end visibility with application monitoring from AppDynamics Isolate bottlenecks and diagnose root cause in seconds. Start your free trial of AppDynamics Pro today! http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
