When I needed to install a DRO on my mill, I found that toolmann had good quality stuff, not too expensive and he will sell pieces. The scales appear to be quadrature. try sa...@toolmann.net.
----- Original Message ----- From: emc-users-requ...@lists.sourceforge.net To: emc-users@lists.sourceforge.net Sent: Thursday, February 18, 2016 2:13:11 PM Subject: Emc-users Digest, Vol 118, Issue 68 Send Emc-users mailing list submissions to emc-users@lists.sourceforge.net To subscribe or unsubscribe via the World Wide Web, visit https://lists.sourceforge.net/lists/listinfo/emc-users or, via email, send a message with subject or body 'help' to emc-users-requ...@lists.sourceforge.net You can reach the person managing the list at emc-users-ow...@lists.sourceforge.net When replying, please edit your Subject line so it is more specific than "Re: Contents of Emc-users digest..." Today's Topics: 1. Linear / glass Scales (Mark Johnsen) 2. Re: Linear / glass Scales (Jon Elson) 3. Re: Linear / glass Scales (TJoseph Powderly) 4. Re: Linear / glass Scales (Dave Cole) 5. Re: Linear / glass Scales (Nicklas Karlsson) 6. Mesa 5i25 firmware - is there a mistake? (Viesturs L?cis) 7. Re: Mesa 5i25 firmware - is there a mistake? (Peter C. Wallace) ---------------------------------------------------------------------- Message: 1 Date: Thu, 18 Feb 2016 09:17:29 -0800 From: Mark Johnsen <m...@ijohnsen.com> Subject: [Emc-users] Linear / glass Scales To: emc-users@lists.sourceforge.net Message-ID: <CAAAE+A1gDpWJR+XreK6txX31_eJS3wjsZ++QN16W0udh=ao...@mail.gmail.com> Content-Type: text/plain; charset=UTF-8 Dave, I had toyed w/ replacing my glass scales and found the following on Ebay: Here's a renishaw copy (new) of a linear magnetic read head: http://www.ebay.com/itm/231172803441 The same guy was selling these: http://www.ebay.com/itm/231135218237 But, looks like he's all out of them. magnetic tape (from same vendor): http://www.ebay.com/itm/331023801182 The magnetic encoders will be way more durable than glass scales and probably cheaper (although don't hold me to that). Good luck, Mark > Date: Wed, 17 Feb 2016 16:52:55 -0500 > From: Dave Cole <linuxcncro...@gmail.com> > Subject: [Emc-users] Linear / glass Scales > To: emc-users@lists.sourceforge.net > Message-ID: <56c4ebb7.2040...@gmail.com> > Content-Type: text/plain; charset=windows-1252; format=flowed > > > I'm shopping for some linear/glass scales for a custom industrial machine. > > I only need to read 8" of travel. > > Does anyone know of an economical solution. I'd like full quad > outputs - ttl would be ideal. > I don't need super resolution or accuracy. .001" would be sufficient. > > Thanks, > > Dave > > ------------------------------ Message: 2 Date: Thu, 18 Feb 2016 11:29:49 -0600 From: Jon Elson <el...@pico-systems.com> Subject: Re: [Emc-users] Linear / glass Scales To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> Message-ID: <56c5ff8d.8070...@pico-systems.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed On 02/18/2016 06:32 AM, Dave Cole wrote: > > > Are the Chinese glass scales on Ebay ok from what you have heard? > There is at least one 8" device for $200 or less listed. I like > saving $$ but if the device is unreliable it will cause a lot of issues. Well, I don't know. Most likely, for a manually-moved axis, they will do fine, if you can keep them clean. If moved through a lot of travel or dirt gets inside, then I'd guess the name brand units might be more robust. > Never thought about the Enco catalog, good idea. > > The digital calipers; I think they have their own serial protocol? I > could live with a 250 ms update time on the position so something like > that could work if I could extract the position data > without too much effort. > There are some documents on the net that tell how some people have deciphered the serial protocol and built their own readout boxes. Not all these units use the same protocol, so beware! Jon ------------------------------ Message: 3 Date: Fri, 19 Feb 2016 01:51:05 +0800 From: TJoseph Powderly <tjt...@gmail.com> Subject: Re: [Emc-users] Linear / glass Scales To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> Message-ID: <56c60489.8020...@gmail.com> Content-Type: text/plain; charset=windows-1252; format=flowed somebody with more time than me (tm) could try the linear resolvers like skunkworks had it looked as if they could be made as pcb's http://www.google.com/patents/US4705971 http://www.analog.com/media/en/technical-documentation/application-notes/394309286AN263.pdf google for inductosyn iirc Jon Elson has resolver to quadrature items iirc ICHaus has some chips tomp On 02/17/2016 03:52 PM, Dave Cole wrote: >>>> I'm shopping for some linear/glass scales for a custom industrial machine. >>>> >>>> I only need to read 8" of travel. >>>> >>>> Does anyone know of an economical solution. I'd like full quad >>>> outputs - ttl would be ideal. >>>> I don't need super resolution or accuracy. .001" would be sufficient. > ------------------------------ Message: 4 Date: Thu, 18 Feb 2016 13:28:02 -0500 From: Dave Cole <linuxcncro...@gmail.com> Subject: Re: [Emc-users] Linear / glass Scales To: emc-users@lists.sourceforge.net Message-ID: <56c60d32.1090...@gmail.com> Content-Type: text/plain; charset=windows-1252; format=flowed All good info guys. Those magnetic sensors are really appealing. I want to try those. Siko Global gave me a quote for some magnetic heads and 10" of tape and that setup is just under $700 for one sensor, tape and cable which is actually more than the Balluff sensors we were looking at. That Ebay link for the Renishaw like sensors is really tempting. Almost too good to be true. I found out that the Balluff price we got for the magnetostrictive sensors were for two sensors for just under $1200 including cables and sliding magnets so we are going to go with those. I was originally told that they were $1200 for one sensor setup, which I had a problem with. The job is tight on time as they want the machine running by 3/15 and Balluff assembles their sensors in Kentucky which is close so we are heading in that direction. I've use Balluff sensors P profile sensors before and they hold up really well. Unless they are mangled, they typically never die. Thanks, Dave On 2/18/2016 12:51 PM, TJoseph Powderly wrote: > somebody with more time than me (tm) > could try the linear resolvers like skunkworks had > it looked as if they could be made as pcb's > http://www.google.com/patents/US4705971 > http://www.analog.com/media/en/technical-documentation/application-notes/394309286AN263.pdf > > google for inductosyn > > iirc Jon Elson has resolver to quadrature items > iirc ICHaus has some chips > > tomp > > On 02/17/2016 03:52 PM, Dave Cole wrote: >>>>> I'm shopping for some linear/glass scales for a custom industrial >>>>> machine. >>>>> >>>>> I only need to read 8" of travel. >>>>> >>>>> Does anyone know of an economical solution. I'd like full quad >>>>> outputs - ttl would be ideal. >>>>> I don't need super resolution or accuracy. .001" would be sufficient. > > ------------------------------------------------------------------------------ > > Site24x7 APM Insight: Get Deep Visibility into Application Performance > APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month > Monitor end-to-end web transactions and take corrective actions now > Troubleshoot faster and improve end-user experience. Signup Now! > http://pubads.g.doubleclick.net/gampad/clk?id=272487151&iu=/4140 > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------ Message: 5 Date: Thu, 18 Feb 2016 20:23:50 +0100 From: Nicklas Karlsson <nicklas.karlsso...@gmail.com> Subject: Re: [Emc-users] Linear / glass Scales To: "Enhanced Machine Controller \(EMC\)" <emc-users@lists.sourceforge.net> Message-ID: <20160218202350.f77a381e6b1c5fa00c79b...@gmail.com> Content-Type: text/plain; charset=US-ASCII Do you know accuracy of the linear resolvers? I guess it would be possible to position an ordinary disc read head quite accurate. Either one for DVD/CD or magnetic. How many bits are stored per turn? On Fri, 19 Feb 2016 01:51:05 +0800 TJoseph Powderly <tjt...@gmail.com> wrote: > somebody with more time than me (tm) > could try the linear resolvers like skunkworks had > it looked as if they could be made as pcb's > http://www.google.com/patents/US4705971 > http://www.analog.com/media/en/technical-documentation/application-notes/394309286AN263.pdf > > google for inductosyn > > iirc Jon Elson has resolver to quadrature items > iirc ICHaus has some chips > > tomp > > On 02/17/2016 03:52 PM, Dave Cole wrote: > >>>> I'm shopping for some linear/glass scales for a custom industrial > >>>> machine. > >>>> > >>>> I only need to read 8" of travel. > >>>> > >>>> Does anyone know of an economical solution. I'd like full quad > >>>> outputs - ttl would be ideal. > >>>> I don't need super resolution or accuracy. .001" would be sufficient. > > > > > ------------------------------------------------------------------------------ > > Site24x7 APM Insight: Get Deep Visibility into Application Performance > APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month > Monitor end-to-end web transactions and take corrective actions now > Troubleshoot faster and improve end-user experience. Signup Now! > http://pubads.g.doubleclick.net/gampad/clk?id=272487151&iu=/4140 > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------ Message: 6 Date: Thu, 18 Feb 2016 23:01:37 +0200 From: Viesturs L?cis <viesturs.la...@gmail.com> Subject: [Emc-users] Mesa 5i25 firmware - is there a mistake? To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> Message-ID: <CAKNeY+cog=mmswyvd9qekrkthdfbyg+fx3wkwecq2r0ddk_...@mail.gmail.com> Content-Type: text/plain; charset=UTF-8 Hello! I am trying to set up a cnc machine with 5 steppers that is supposed to run with 5i25 card and simple breakout board. I downloaded 5i25.zip file from mesanet.com webpage and found that 5i25_g540x2.bit might be the most appropriate firmware to use. The problem is that in .pin file I see that there is step pin for stepgen4, but I do not see dir pin for stepgen4... Outputs of stepgens 0-3 are working great, now I need to get 5th motor to work, but I have no idea, which pin is dir pin. Is there a mistake in .pin file and the dir pin is not specified or does the dir pin not exist at all? Thanks in advance! Viesturs ------------------------------ Message: 7 Date: Thu, 18 Feb 2016 14:13:00 -0800 (PST) From: "Peter C. Wallace" <p...@mesanet.com> Subject: Re: [Emc-users] Mesa 5i25 firmware - is there a mistake? To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> Message-ID: <pine.neb.4.64.1602181408280.12...@freeby.mesanet.com> Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed On Thu, 18 Feb 2016, Viesturs L?cis wrote: > Date: Thu, 18 Feb 2016 23:01:37 +0200 > From: "[UTF-8] Viesturs L?cis" <viesturs.la...@gmail.com> > Reply-To: "Enhanced Machine Controller (EMC)" > <emc-users@lists.sourceforge.net> > To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> > Subject: [Emc-users] Mesa 5i25 firmware - is there a mistake? > > Hello! > > I am trying to set up a cnc machine with 5 steppers that is supposed > to run with 5i25 card and simple breakout board. > I downloaded 5i25.zip file from mesanet.com webpage and found that > 5i25_g540x2.bit might be the most appropriate firmware to use. > The problem is that in .pin file I see that there is step pin for > stepgen4, but I do not see dir pin for stepgen4... Outputs of stepgens > 0-3 are working great, now I need to get 5th motor to work, but I have > no idea, which pin is dir pin. > Is there a mistake in .pin file and the dir pin is not specified or > does the dir pin not exist at all? > > Thanks in advance! > > Viesturs > > ------------------------------------------------------------------------------ > The G540 is a 4 axis breakout/drive combination, the fifth stepgen is used for the chargepump, so doesn't have a dir pin... I dont think there are any common 5 axis pinouts that match parallel port breakouts, but if you are not aiming at a parallel port compatible pinout, you might be able to use a 7I76 pinout. It has 5 stepgens and if the other options (like sserial and encoder) are explicitedly disabled in the config line, all the free pins shoud be usable for GPIO > Site24x7 APM Insight: Get Deep Visibility into Application Performance > APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month > Monitor end-to-end web transactions and take corrective actions now > Troubleshoot faster and improve end-user experience. Signup Now! > http://pubads.g.doubleclick.net/gampad/clk?id=272487151&iu=/4140 > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > Peter Wallace Mesa Electronics (\__/) (='.'=) This is Bunny. Copy and paste bunny into your (")_(") signature to help him gain world domination. ------------------------------ ------------------------------------------------------------------------------ Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month Monitor end-to-end web transactions and take corrective actions now Troubleshoot faster and improve end-user experience. Signup Now! http://pubads.g.doubleclick.net/gampad/clk?id=272487151&iu=/4140 ------------------------------ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users End of Emc-users Digest, Vol 118, Issue 68 ****************************************** ------------------------------------------------------------------------------ Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month Monitor end-to-end web transactions and take corrective actions now Troubleshoot faster and improve end-user experience. Signup Now! http://pubads.g.doubleclick.net/gampad/clk?id=272487151&iu=/4140 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
