MTW is really difficult to route. I've been using 18 gauge UL1007 300 volt stranded hook up wire for that. Its a dream to use compared to MTW.
Once you use it, you will never use MTW for that again. I order it online. Dave On 11/20/2014 12:47 PM, Rick Lair wrote: > The 7I80, and 7I49 are symmetrical, they are both 4" x 4", but the 7I70 > and 7I71 are not, and those are the more critical ones to have > orientated this way. 48 number 16 MTW wires routed to each of these > boards would look like crap with the board 90 degrees off. > > > Thanks > > > Rick > > > > ------ Original Message ------ > From: emc-users-requ...@lists.sourceforge.net > To: emc-users@lists.sourceforge.net > Sent: 11/20/2014 12:25:30 PM > Subject: Emc-users Digest, Vol 103, Issue 56 > >> 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. Re: Screw Mapping (Mark Wendt) >> 2. Re: Motor Resolvers (Marius Liebenberg) >> 3. Re: Screw Mapping (Gene Heskett) >> 4. Re: i guess i need a new motherboard for new linuxcnc >> (Peter C. Wallace) >> 5. Re: i guess i need a new motherboard for new linuxcnc (andy pugh) >> 6. Re: Latest Linux Build (Marius Liebenberg) >> 7. Re: i guess i need a new motherboard for new linuxcnc >> (Peter C. Wallace) >> 8. Re: Motor Resolvers (andy pugh) >> >> >> ---------------------------------------------------------------------- >> >> Message: 1 >> Date: Thu, 20 Nov 2014 08:41:59 -0500 >> From: Mark Wendt <wendt.m...@gmail.com> >> Subject: Re: [Emc-users] Screw Mapping >> To: "Enhanced Machine Controller (EMC)" >> <emc-users@lists.sourceforge.net> >> Message-ID: >> <cabwwdmpghdsg3jmsyfsgkwaega6oxnzgjl4ukxsl0zjclfy...@mail.gmail.com> >> Content-Type: text/plain; charset=UTF-8 >> >> On Thu, Nov 20, 2014 at 8:25 AM, andy pugh <bodge...@gmail.com> wrote: >> >>> On 20 November 2014 13:07, Mark Wendt <wendt.m...@gmail.com> wrote: >>> >>> >> Using 16 I get >>> >> http://ibin.co/1htLwap6mz37 >>> >>> > Ah ha! Thanks for that. Appreciate the help Andy! >>> >>> Actually, you can do better than that. Because Lincurve doesn't >>> extrapolate you can drop the (0,0) point and add a (7,0) point to >>> make >>> the fit better. >>> >>> -- >>> atp >>> If you can't fix it, you don't own it. >>> http://www.ifixit.com/Manifesto >>> >> >> Thanks! I'll take a look at that too. >> >> Mark >> >> >> ------------------------------ >> >> Message: 2 >> Date: Thu, 20 Nov 2014 16:29:51 +0200 >> From: Marius Liebenberg <mar...@mastercut.co.za> >> Subject: Re: [Emc-users] Motor Resolvers >> To: emc-users@lists.sourceforge.net >> Message-ID: <546dfadf.7040...@mastercut.co.za> >> Content-Type: text/plain; charset=ISO-8859-1; format=flowed >> >> >> On 2014-11-18 20:28, andy pugh wrote: >>> On 18 November 2014 17:33, Kirk Wallace <kwall...@wallacecompany.com> >>> wrote: >>>> The more I think about it, adding Halls seems to be the way to go. >>> Resolvers are _really_ good transducers. It seems a shame not to use >>> them. >>> >>> I have no boards left. But I can pass on the files to have a batch of >>> PCBs made ($10 for 10 boards at seeedstudio.com ) >>> >>> The results were disappointing for position feedback, but sending 3 >>> emulated Hall signals from Arduino GPIO and nothing else ought to >>> work >>> pretty well. Each Arduino does 3 motors. >> Andy why were you disappointed with the position feedback. >> Will it be ok on a slow moving bed? >> Do you think a more powerful MCU will do the trick? >> >> >> -- >> >> Regards /Groete >> >> Marius D. Liebenberg >> +27 82 698 3251 >> +27 12 743 6064 >> QQ 1767394877 >> >> >> >> >> ------------------------------ >> >> Message: 3 >> Date: Thu, 20 Nov 2014 11:33:45 -0500 >> From: Gene Heskett <ghesk...@wdtv.com> >> Subject: Re: [Emc-users] Screw Mapping >> To: emc-users@lists.sourceforge.net >> Message-ID: <201411201133.45148.ghesk...@wdtv.com> >> Content-Type: Text/Plain; charset="windows-1256" >> >> On Thursday 20 November 2014 06:47:41 Mark Wendt did opine >> And Gene did reply: >>> On Thu, Nov 20, 2014 at 6:38 AM, andy pugh <bodge...@gmail.com> >>> wrote: >>> > >>> https://docs.google.com/spreadsheets/d/1ovcg0THudgyONfH508BG4_mzOxfuD >>> > 3Od7SsPfnqxXBg/edit#gid=740055151 >>> > >>> > > Whatcha think? Easy enough to do? >>> > >>> > Looks like you should get a nice fit with 14 points. >>> > >>> > >>> > -- >>> > atp >>> > If you can't fix it, you don't own it. >>> > http://www.ifixit.com/Manifesto >>> >>> Andy, >>> >>> How would you fit it into 14 points? I seem to come up with quite a >>> few more points than 14. >>> >>> Mark >> Pick your most + point, and your most - point, plus the start point and >> end points, and apply that correction to those 4 points only using >> lincurve & offset. >> >> Measure it again. How much error is there now? And where? >> >> Pick the next pair of maximum errors, and where you are inserting >> between >> previous points, slide the higher points one x#y# pigeon hole up to >> make >> room for the in-between point. Pretty soon you'll be trying to >> compensate >> for the room temp variations, and I doubt you would need more than 10 >> of >> the 16 settings the default build of the module provides. >> >> Actually, if I was doing it, I think I'd start at zero, move up the >> rails >> until you hit the first thousandth error. Set lincurves x1 and y1. >> Measure to the next place you find a thou error, set x2y2 to fix that. >> >> Repeat till you are at the other end of the rails. and I doubt you >> would >> need more than 10 of the correction points you have. And in any stretch >> of the rails where you seem to be fixing a straight line where the xN >> and >> xn+2 passes thru the point between them, the one in the middle can be >> deleted by putting the x4y4 values into the x3y3 box. >>> >>> ----------------------------------------------------------------------- >>> ------- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT >>> Server from Actuate! Instantly Supercharge Your Business Reports and >>> Dashboards with Interactivity, Sharing, Native Excel Exports, App >>> Integration & more Get technology previously reserved for >>> billion-dollar corporations, FREE >>> >>> http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg. >>> clktrk _______________________________________________ >>> Emc-users mailing list >>> Emc-users@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/emc-users >> >> Cheers, Gene Heskett >> -- >> "There are four boxes to be used in defense of liberty: >> soap, ballot, jury, and ammo. Please use in that order." >> -Ed Howdershelt (Author) >> Genes Web page <http://geneslinuxbox.net:6309/gene> >> US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS >> >> >> >> ------------------------------ >> >> Message: 4 >> Date: Thu, 20 Nov 2014 08:37:39 -0800 (PST) >> From: "Peter C. Wallace" <p...@mesanet.com> >> Subject: Re: [Emc-users] i guess i need a new motherboard for new >> linuxcnc >> To: "Enhanced Machine Controller (EMC)" >> <emc-users@lists.sourceforge.net> >> Message-ID: <pine.neb.4.64.1411200815520.18...@freeby.mesanet.com> >> Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed >> >> On Thu, 20 Nov 2014, kqt4a...@gmail.com wrote: >> >>> Date: Thu, 20 Nov 2014 05:39:17 -0600 (CST) >>> From: kqt4a...@gmail.com >>> Reply-To: "Enhanced Machine Controller (EMC)" >>> <emc-users@lists.sourceforge.net> >>> To: "Enhanced Machine Controller (EMC)" >>> <emc-users@lists.sourceforge.net> >>> Subject: Re: [Emc-users] i guess i need a new motherboard for new >>> linuxcnc >>> >>> On Wed, 19 Nov 2014, Peter C. Wallace wrote: >>> >>>> On Wed, 19 Nov 2014, kqt4a...@gmail.com wrote: >>>> >>>>> Date: Wed, 19 Nov 2014 13:52:36 -0600 (CST) >>>>> From: kqt4a...@gmail.com >>>>> Reply-To: "Enhanced Machine Controller (EMC)" >>>>> <emc-users@lists.sourceforge.net> >>>>> To: emc-users@lists.sourceforge.net >>>>> Subject: [Emc-users] i guess i need a new motherboard for new >>>>> linuxcnc >>>>> >>>>> Can you all recommend a basic motherboard that is know to work with >>>>> LinuxCNC running a parallel controller? Thanks. >>>>> >>>>> Richard >>>> The J1800,J1900,J2900 based motherboards work well with the latest >>>> Wheezy ISO >>>> (these are fanless, relatively fast (2x Atom) and low latency) >>>> >>> >>> Is this what you are talking about, is 2 GB of memory enough >>> >>> >>> http://www.newegg.com/Product/Product.aspx?Item=N82E16813132104&cm_re=j1800-_-13-132-104-_-Product >>> >> Thats one of the many J1800,J1900,J2900 motherboards that have >> displaced the >> older D525 and D2550,D2800 based motherboards in the low power X86 >> range >> >> 2G is fine for linuxcnc >> >> This AMD MB is also OK >> >> http://www.newegg.com/Product/Product.aspx?Item=N82E16813138412&cm_re=biostar_a4-5000-_-13-138-412-_-Product >> >> >> Not sure how its latency compares (it has a LPT header, no back panel >> LPT >> port) >> >>> >>> ------------------------------------------------------------------------------ >>> Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server >>> from Actuate! Instantly Supercharge Your Business Reports and >>> Dashboards >>> with Interactivity, Sharing, Native Excel Exports, App Integration & >>> more >>> Get technology previously reserved for billion-dollar corporations, >>> FREE >>> >>> http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk >>> _______________________________________________ >>> 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. >> >> >> >> >> ------------------------------ >> >> Message: 5 >> Date: Thu, 20 Nov 2014 16:50:23 +0000 >> From: andy pugh <bodge...@gmail.com> >> Subject: Re: [Emc-users] i guess i need a new motherboard for new >> linuxcnc >> To: "Enhanced Machine Controller (EMC)" >> <emc-users@lists.sourceforge.net> >> Message-ID: >> <CAN1+YZXx1cDL5mQUam21qyT6vU8LKgeVg5ubC=o_ydxic9-...@mail.gmail.com> >> Content-Type: text/plain; charset=UTF-8 >> >> On 20 November 2014 16:37, Peter C. Wallace <p...@mesanet.com> wrote: >> >>> Thats one of the many J1800,J1900,J2900 motherboards that have >>> displaced the >>> older D525 and D2550,D2800 based motherboards in the low power X86 >>> range >> I wonder if this one would be any good? It looks like single 12V >> power, which is a big plus. >> http://www.newegg.com/Product/Product.aspx?Item=N82E16813157495 >> >> I think I see a parallel port header. >> >> -- >> atp >> If you can't fix it, you don't own it. >> http://www.ifixit.com/Manifesto >> >> >> >> ------------------------------ >> >> Message: 6 >> Date: Thu, 20 Nov 2014 18:51:19 +0200 >> From: Marius Liebenberg <mar...@mastercut.co.za> >> Subject: Re: [Emc-users] Latest Linux Build >> To: emc-users@lists.sourceforge.net >> Message-ID: <546e1c07.8080...@mastercut.co.za> >> Content-Type: text/plain; charset=ISO-8859-1; format=flowed >> >> Rick >> I just looked at the 7i80 and it looks like the holes are symmetrical >> so >> you could mount it any way round I think. >> >> On 2014-11-19 14:02, Rick Lair wrote: >>> I would rather use the din rail mounts, but they are orientated 90 >>> degrees off of how I mount the boards, or so it looks like on the >>> mesa >>> web page. >>> >>> >>> Thanks >>> >>> >>> Rick >>> >>> >>> >>> >>> >>> ------------------------------------------------------------------------------ >>> Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server >>> from Actuate! Instantly Supercharge Your Business Reports and >>> Dashboards >>> with Interactivity, Sharing, Native Excel Exports, App Integration & >>> more >>> Get technology previously reserved for billion-dollar corporations, >>> FREE >>> >>> http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk >>> _______________________________________________ >>> Emc-users mailing list >>> Emc-users@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/emc-users >>> >> -- >> >> Regards /Groete >> >> Marius D. Liebenberg >> +27 82 698 3251 >> +27 12 743 6064 >> QQ 1767394877 >> >> >> >> >> ------------------------------ >> >> Message: 7 >> Date: Thu, 20 Nov 2014 08:55:28 -0800 (PST) >> From: "Peter C. Wallace" <p...@mesanet.com> >> Subject: Re: [Emc-users] i guess i need a new motherboard for new >> linuxcnc >> To: "Enhanced Machine Controller (EMC)" >> <emc-users@lists.sourceforge.net> >> Message-ID: <pine.neb.4.64.1411200854350.18...@freeby.mesanet.com> >> Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed >> >> On Thu, 20 Nov 2014, andy pugh wrote: >> >>> Date: Thu, 20 Nov 2014 16:50:23 +0000 >>> From: andy pugh <bodge...@gmail.com> >>> Reply-To: "Enhanced Machine Controller (EMC)" >>> <emc-users@lists.sourceforge.net> >>> To: "Enhanced Machine Controller (EMC)" >>> <emc-users@lists.sourceforge.net> >>> Subject: Re: [Emc-users] i guess i need a new motherboard for new >>> linuxcnc >>> >>> On 20 November 2014 16:37, Peter C. Wallace <p...@mesanet.com> wrote: >>> >>>> Thats one of the many J1800,J1900,J2900 motherboards that have >>>> displaced the >>>> older D525 and D2550,D2800 based motherboards in the low power X86 >>>> range >>> I wonder if this one would be any good? It looks like single 12V >>> power, which is a big plus. >>> http://www.newegg.com/Product/Product.aspx?Item=N82E16813157495 >>> >>> I think I see a parallel port header. >>> >>> -- >>> atp >>> If you can't fix it, you don't own it. >>> http://www.ifixit.com/Manifesto >>> >> >> Yep, if you zoom in you can see a 26 pin header labeled "LPT1" >> >> >>> >>> ------------------------------------------------------------------------------ >>> Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server >>> from Actuate! Instantly Supercharge Your Business Reports and >>> Dashboards >>> with Interactivity, Sharing, Native Excel Exports, App Integration & >>> more >>> Get technology previously reserved for billion-dollar corporations, >>> FREE >>> >>> http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk >>> _______________________________________________ >>> 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. >> >> >> >> >> ------------------------------ >> >> Message: 8 >> Date: Thu, 20 Nov 2014 17:25:01 +0000 >> From: andy pugh <bodge...@gmail.com> >> Subject: Re: [Emc-users] Motor Resolvers >> To: "Enhanced Machine Controller (EMC)" >> <emc-users@lists.sourceforge.net> >> Message-ID: >> <can1+yzwcc9dmqy+tq_so+hngsy594nnmra22iyv2yq6hdox...@mail.gmail.com> >> Content-Type: text/plain; charset=UTF-8 >> >> On 20 November 2014 14:29, Marius Liebenberg <mar...@mastercut.co.za> >> wrote: >>> Andy why were you disappointed with the position feedback. >>> Will it be ok on a slow moving bed? >>> Do you think a more powerful MCU will do the trick? >> It was noisy and dithered a lot. The Arduino has to measure 2 voltages >> per measurement. To do it fast enough it had to be only 8 bits and the >> shortest sample time that the Arduino could handle. Even then the >> carrier was only 1kHz, whereas Resolvers normally work at at least >> 5kHz. >> >> So, two noisy values divided by each other = a very noisy result, >> which gives a noisy arctan and a lot of servo dither. >> >> Yes, a more powerful MCU would be better, and it so happens that Mesa >> and Pico sell exactly that all ready to go. >> >> Why will nobody believe me when I say that my experiment was rubbish? >> >> -- >> atp >> If you can't fix it, you don't own it. >> http://www.ifixit.com/Manifesto >> >> >> >> ------------------------------ >> >> ------------------------------------------------------------------------------ >> Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server > >from Actuate! Instantly Supercharge Your Business Reports and >> Dashboards >> with Interactivity, Sharing, Native Excel Exports, App Integration & >> more >> Get technology previously reserved for billion-dollar corporations, >> FREE >> http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk >> >> ------------------------------ >> >> _______________________________________________ >> Emc-users mailing list >> Emc-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/emc-users >> >> >> End of Emc-users Digest, Vol 103, Issue 56 >> ****************************************** > > ------------------------------------------------------------------------------ > Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server > from Actuate! Instantly Supercharge Your Business Reports and Dashboards > with Interactivity, Sharing, Native Excel Exports, App Integration & more > Get technology previously reserved for billion-dollar corporations, FREE > http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com ------------------------------------------------------------------------------ Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! 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