anyone happen to know anything about sony magnescale DROs? would it be
possible to interface the scales on my lathe to emc to work as a dro? one
of the axis on the sony are dead.
On Dec 15, 2007 8:49 PM, Dave Engvall <[EMAIL PROTECTED]> wrote:
> This may get you started:
>
> http://www.acu-rite.com/index.cfm?PageID=56ABA3A7-F620-11D4-
> BC6400A0CC271CB6
>
> From there you can get the details on which scale you have.
> Good luck.
>
> Dave
> On Dec 15, 2007, at 5:16 PM, Chris Morley wrote:
>
> >
> > Some acu-rite scales have index pulses,some have the wire and no
> > pulse, some use an 'absolute' distance coded marks so when u move
> > maybe and inch or so it will know exactly where it is (after the
> > dro/controller evaluates with an algorithm) . Heidenhain more
> > commonly has two indexes or the distances coded marks . Anilam
> > sometimes have index pulses. What model and plug style do u have?
> > ( round or D9). if u include the serial# of reader and scale I
> > might be able to look it up.
> >
> >
> > Chris Morley
> >
> >
> >
> > ----------------------------------------
> >> From: [EMAIL PROTECTED]
> >> To: emc-users@lists.sourceforge.net
> >> Date: Sat, 15 Dec 2007 11:02:18 -0800
> >> Subject: Re: [Emc-users] DRO with VFD
> >>
> >> On Sat, 2007-12-15 at 10:32 -0800, Kirk Wallace wrote:
> >>> On Fri, 2007-12-14 at 23:29 -0500, Stephen Wille Padnos wrote:
> >>>> Hi Kirk
> >>>>
> >>>> Your fast period is way too fast to do a PPMC read/write.
> >>>>
> >>>> The PPMC update is meant to run in the servo thread, which might
> >>>> be 1-2
> >>>> KHz. The read function has to write several control bytes to the
> >>>> parport, then read 12 bytes for the 4 encoder registers, plus other
> >>>> data. That will take you well beyond the 20 us base period in
> >>>> the HAL file.
> >>>>
> >>>> - Steve
> >>>
> >>> Steve - I put a gold star by your name. The Bridgeport VCP is usable
> >>> now. I posted the latest files:
> >>>
> >>> http://www.wallacecompany.com/machine_shop/bridgeport/pyvcp-dro2-
> >>> bp2.hal
> >>> http://www.wallacecompany.com/machine_shop/bridgeport/pyvcp-dro2-
> >>> bp2.hal
> >>>
> >>> I still have the problem but spinbox is working. I found
> >>> that if I click the data entry box, from that point on, the up down
> >>> arrows ramp the numbers. It's pretty handy.
> >>>
> >>> The X axis encoder polarity happened to be wrong, so I changed the
> >>> ppmc.0.encoder.00.scale to a negative value, but that didn't fix
> >>> it. I
> >>> could switch the A and B wires, but I thought the encoder scale
> >>> should
> >>> have. I need to look into this a little more.
> >>
> >> Opps. I entered the encoder scale settings twice.
> >>
> >>> For anyone wanting to play with pyVCP, I found these pages helpful:
> >>>
> >>> http://www.linuxcnc.org/docs/html/hal_vcp.html
> >>> http://www.pythonware.com/library/tkinter/introduction/tkinter-
> >>> reference.htm
> >>> http://developer.mozilla.org/en/docs/XUL:hbox
> >>> http://developer.mozilla.org/en/docs/XUL_Tutorial:The_Box_Model
> >>>
> >>> I haven't been able to get a few things like the flex option to work
> >>> yet, so I am wondering if pyVCP has a full implementation of XUL or
> >>> Tkinter.
> >>
> >> From:
> >> http://www.linuxcnc.org/docs/html/hal_vcp.html#r1_5_3
> >>
> >> It says:
> >> "
> >> Inside a Hbox, you can use the , anchor=""/>, and tags to choose
> >> how items in the
> >> box behave when the window is resized. For details of how fill,
> >> anchor,
> >> and expand behave, refer to the Tk pack manual page, pack(3tk). By
> >> default, fill='y', anchor='center', expand='yes'.
> >> "
> >>
> >> It's amazing what ends up in the documentation.
> >>
> >>> It sure is fun to be able to customize the display, but I guess I
> >>> need
> >>> to get some real work done.
> >>>
> >>> (I have an "extra" wire on my Accurite linear scales, does anyone
> >>> know
> >>> if linear scales normally have an index?)
> >>
> >> --
> >> Kirk Wallace (California, USA
> >> http://www.wallacecompany.com/machine_shop/
> >> Hardinge HNC lathe,
> >> Bridgeport mill conversion, doing XY now,
> >> Zubal lathe conversion pending)
> >>
> >>
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