Re: Life is just a dream

["joe bury" <joebury-at-hotmail.com>]

List,
    Good news, we wired up the relay circuit to the parallel port and we now 
have the Z axis air solenoid working.
          Thank you, Thank you, Thank you.
                                     Joe & Jason


>From: Ray Henry <rehenry-at-up.net>
>Reply-To: emc-at-nist.gov
>To: Multiple recipients of list <emc-at-nist.gov>
>Subject: Re: Life is just a dream
>Date: Mon, 13 May 2002 16:32:35 -0400 (EDT)
>
>
>
>Joe
>
>Glad you got it working.
>
>The mist button only works in manual mode but m7 and m9 will work from a 
>part
>program and the display will show the correct on or off status for it.  I
>used this little program to test it.
>
>n10    g0 x0 y0 z0
>n20    m7
>n30    g1 f2 x1
>n40    y1
>n50    x0
>n70    m9
>n80    y0
>n90    m2
>
>You will want to wire in the relay to the parport but you will need to use 
>a
>transistor to get enough power to pull the coil.  If I remember right there
>is a sample wiring plan on Tim's site ktmarketing.com and follow the link 
>to
>cnc and parallel port.  The following link should get you there.
>
>http://206.19.206.56/parallel.htm
>
>Now the specific pin that you pick to run the 2n2222 depends upon what you 
>do
>with the I/O portion of the ini file again.  The default is pin 8 I believe
>but you can check this once you have two parports by using IO_Show from the
>scripts menu.
>
>You will need to run bridgeporttask and bridgeportio and set the correct
>location of your parports.
>
>HTH
>
>Ray
>
>
>On Monday 13 May 2002 12:41, Joe wrote:
> > Ray,
> >    We knew that we needed to change the ini. However we spent a lot of 
>time
> > trying to correct that error.
> >    Today when the error came up we clicked on the ok box and we where 
>able
> > to get out of e-stop just as you said we would.
> >    The problem now is that the mist on and off button dose not respond 
>as
> > well as any of the other control buttons. We even tried to run a small
> > program with no luck. What steps are necessary to fix this?
> >    Also when this problem is resolved where do we wire in our relay? 
>Will
> > it be to the stg board or the parallel port and witch terminals?
> >                                                Thank you,
> >                                                        Joe Bury
> >
> >
> > From: Ray Henry <rehenry-at-up.net>
> >
> > >Reply-To: emc-at-nist.gov
> > >To: Multiple recipients of list <emc-at-nist.gov>
> > >Subject: Re: Life is just a dream
> > >Date: Fri, 10 May 2002 09:46:31 -0400 (EDT)
> > >
> > >
> > >
> > >Joe
> > >
> > >Once again you are being bitten by the polarity of a couple of the
> > >variables
> > >in your ini.  bridgeportio uses two pins on the aux parport to sense 
>and
> > >set
> > >estop.  The sense one must be correct for your port.  The set one 
>doesn't
> > >really matter.  You will encounter an error message when you try to 
>come
> > >out
> > >of estop because bridgeportio expects the sense pin to change when the 
>set
> > >pin says that the EMC has come out of estop.  Just okay the message and
> > > you should be able to run.  I've snipped out the relevant lines below.
> > >
> > >---snipped ini---
> > >; digital in bits
> > >
> > >ESTOP_SENSE_INDEX         =     1
> > ><s>
> > >; digital in polarity, 0 is inverted, 1 is normal
> > >; controller compares with polarity, equal means on, not equal means 
>off
> > >
> > >ESTOP_SENSE_POLARITY      =     0
> > ><s>
> > >; digital out bits
> > ><s>
> > >ESTOP_WRITE_INDEX         =     10
> > ><s>
> > >; digital out polarity, 0 is inverted, 1 is normal
> > >; controller writes the polarity to turn on, opposite of polarity to 
>turn
> > >  off
> > ><s>
> > >ESTOP_WRITE_POLARITY      =     1
> > >---end---
> > >
> > >You learned a few posts back that the index refers to the pin and that 
>pin
> > >nuumber is assignable through the ini.  What isn't assignable this way 
>is
> > >the
> > >logic that relates to the aux signals.  This logic is hard coded in the
> > > I/O software.
> > >
> > >I don't know what you are doing with the z but in most situations you 
>will
> > >want a little bit of dwell between the z down command and the start of
> > >motion.  This can be accomodated by putting a dwell (g4 pnn) on the 
>line
> > >after the coolant on command.  The problem is that you have to remember 
>to
> > >put it in your code each time
> > >
> > >The same thing can also be accomplished without any need to change the
> > >g-code
> > >by using the spindle forward and stop because there is already a 
>settable
> > >dwell there on both ends for spindle brake off and on.  These times are
> > >settable in the ini using the two variables below.
> > >
> > >; wait times in seconds for spindle brake, release
> > >SPINDLE_OFF_WAIT          =     1.0
> > >SPINDLE_ON_WAIT           =     1.5
> > >
> > >Hope this helps
> > >
> > >Ray
> > >
> > >On Friday 10 May 2002 02:24, you wrote:
> > > > Dean,
> > > >    My son Jason may be close to solving the problem. We are trying 
>to
> > >
> > >use
> > >
> > > > mist on and mist off to control the up and down air cylinder of the 
>Z
> > >
> > >axis.
> > >
> > > > We had to switch from minimill to bridgeport. Now we are 
>experiencing
> > > > problems with coming out of e-stop. None of the conventional cures 
>seem
> > >
> > >to
> > >
> > > > work. We are using a BDI install with a stg8 board. I believe that 
>most
> > >
> > >of
> > >
> > > > my problems in the past have been related to the linkage of the emc
> > >
> > >program
> > >
> > > > and the stg board.
> > > >    I'm actually looking forward to the G-code. At least there should 
>be
> > >
> > >a
> > >
> > > > certain amount of predictability.
> > > >                                                   Joe
> > > >
> > > > From: "Dean L. Hedin" <dlh2001-at-comcast.net>
> > > >
> > > > >Reply-To: emc-at-nist.gov
> > > > >To: Multiple recipients of list <emc-at-nist.gov>
> > > > >Subject: Re: Life is just a dream
> > > > >Date: Thu, 9 May 2002 01:44:02 -0400 (EDT)
> > > > >
> > > > >
> > > > >I agree with you to some degree.  But I have to admit, I am 
>impressed
> > > > >with how far I've come since October of last year.
> > > > >
> > > > >I am a programmer by trade.  But you know what?  Setting 
>up/configuing
> > > > >EMC was not the hard part.  The hard parts were aspects of the 
>machine
> > > > >itself,
> > > > >and learning the subtleties of g-code and optimal tool paths.
> > > > >
> > > > >With the machine (3 axis router) it was the harnessing & hook up of
> > > > > the controller, proper stepper motor sizing,  limit switches 
>etc...
> > > > >
> > > > >With the g-code it was more of an experience thing.  Learning not 
>to
> > >
> > >waste
> > >
> > > > >motion.   Using a larger bit whenever possible, etc..
> > > > >
> > > > >Where are you at right now Joe?  Maybe we can help you along.
> > > > >
> > > > >On Tuesday 07 May 2002 05:08 pm, joe bury wrote:
> > > > > > List,
> > > > > >    Some days I wish I never heard of the emc program. It has 
>been
> > >
> > >one
> > >
> > > > > > of the most frustrating events of my life. I know there's a
> > > > > > learning curve
> > > > >
> > > > >to
> > > > >
> > > > > > most things. But it doesn't apply here. Even when you do the
> > >
> > >research
> > >
> > > > >and
> > > > >
> > > > > > put in the time there so many quirks that you can't tell if your
> > >
> > >coming
> > >
> > > > >or
> > > > >
> > > > > > going. It keeps you holding on with success  always just around 
>the
> > > > >
> > > > >corner.
> > > > >
> > > > > > When nist said they want to expand the use of cnc and to open up
> > > > > > the
> > > > >
> > > > >market
> > > > >
> > > > > > this is a laugh. Because the program is not user friendly. You 
>need
> > >
> > >to
> > >
> > > > >be a
> > > > >
> > > > > > computer programmer to wade thru the code. It tickles me when a
> > >
> > >newbie
> > >
> > > > > > comes on board, if only they knew what lies ahead. This said and
> > >
> > >done I
> > >
> > > > > > guess I'll start pounding my head against the wall again 
>tomorrow,
> > > > >
> > > > >because
> > > > >
> > > > > > I'm not a quitter.
> > > > > >                                                    Joe Bury
> > > > > >
> > > > > > 
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