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: [email protected] >> 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) >> >> >> --------------------------------------------------------------------- >> ---- >> SF.Net email is sponsored by: >> Check out the new SourceForge.net Marketplace. >> It's the best place to buy or sell services >> for just about anything Open Source. >> http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/ >> marketplace >> _______________________________________________ >> Emc-users mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/emc-users > > _________________________________________________________________ > Read what Santa`s been up to! For all the latest, visit > asksantaclaus.spaces.live.com! > http://asksantaclaus.spaces.live.com/ > ---------------------------------------------------------------------- > --- > SF.Net email is sponsored by: > Check out the new SourceForge.net Marketplace. > It's the best place to buy or sell services > for just about anything Open Source. > http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/ > marketplace > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------- SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. 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