ףף ץ. נשלח באמצעות מכשיר ה LG שלי
[email protected] wrote: >Send Emc-users mailing list submissions to > [email protected] > >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 > [email protected] > >You can reach the person managing the list at > [email protected] > >When replying, please edit your Subject line so it is more specific >than "Re: Contents of Emc-users digest..." > > >Today's Topics: > > 1. Re: Running Mitsubishi Meldas DC servo motors with LinuxCNC > (andy pugh) > 2. Re: Latest Linux Build (Rick Lair) > 3. Re: Screw Mapping ([email protected]) > 4. Re: Screw Mapping (Mark Wendt) > 5. Re: Latest Linux Build (Dave Cole) > 6. Re: Screw Mapping ([email protected]) > 7. Re: Screw Mapping (Mark Wendt) > 8. Re: Running Mitsubishi Meldas DC servo motors with LinuxCNC > (Jeff Epler) > > >---------------------------------------------------------------------- > >Message: 1 >Date: Wed, 19 Nov 2014 10:11:28 +0000 >From: andy pugh <[email protected]> >Subject: Re: [Emc-users] Running Mitsubishi Meldas DC servo motors > with LinuxCNC >To: "Enhanced Machine Controller (EMC)" > <[email protected]> >Message-ID: > <can1+yzxmm+fgnanz+81u2y37t3poomnue0bvz1zqgd1qeai...@mail.gmail.com> >Content-Type: text/plain; charset=UTF-8 > >On 19 November 2014 01:05, Leonardo Marsaglia ><[email protected]> wrote: >> http://imageshack.com/a/img537/5573/lgfKjB.jpg > >Google images suggests it is a Mazatrol TRA31 >http://www.dubuque-forsale.com/OLD-ADS-FROM-PREVIOUS-YEARS/2007/June/Mitsubishi-meldas-mazatrol-tra-31A-31-servo-drive-TRA31.php > >There is a manual of sorts here: >http://www.meau.com/functions/dms/getfile.asp?ID=010000000000000001000000465000000 >but I am not sure that it answers the important questions. > > >-- >atp >If you can't fix it, you don't own it. >http://www.ifixit.com/Manifesto > > > >------------------------------ > >Message: 2 >Date: Wed, 19 Nov 2014 12:02:16 +0000 >From: "Rick Lair" <[email protected]> >Subject: Re: [Emc-users] Latest Linux Build >To: [email protected] >Message-ID: <em4a6f5028-2e6b-493e-bb29-4b2732cf4ce5@ricks-desktop> >Content-Type: text/plain; format=flowed; charset=utf-8 > >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 > > > > > > >------------------------------ > >Message: 3 >Date: Wed, 19 Nov 2014 06:20:13 -0600 >From: <[email protected]> >Subject: Re: [Emc-users] Screw Mapping >To: <[email protected]> >Message-ID: <[email protected]> >Content-Type: text/plain; charset="iso-8859-1" > >Is there a way to clamp a sander or similar to the head for use in flattening? >A solid clamping and a series of light cuts ought to flatten to match the axis. > > >------Original Mail------ >From: "Mark Wendt" <[email protected]> >To: "Enhanced Machine Controller (EMC)" <[email protected]> >Sent: Tue, 18 Nov 2014 10:56:10 -0500 >Subject: Re: [Emc-users] Screw Mapping > >On Tue, Nov 18, 2014 at 10:32 AM, dave <[email protected]> wrote: > >> >> On 11/18/2014 06:45 AM, Mark Wendt wrote: >> > Stuart, >> > >> > I have no tooling plates in use now. ;-) >> > >> > Mark >> > >> > >> Hi Mark, >> >> I don't know if the site is still active but Les Watts used an >> interesting compensation >> scheme for his router. Something about a cam on a tensioned wire IIRC. >> >> Being an old curmudgeon ( is that redundant?) I just have to ask what >> the precision >> of the process is if the bed were perfect? >> Maybe I envision the tooling plate incorrectly but why wouldn't one >> that was simply >> flat do. After all you do have a controllable Z axis. >> >> Despite claims by various people about resolution to .01 mm or so it >> still comes >> down to the accuracy and precision of the process. >> >> On another tangent I wonder about using a polynomial (curve fit) but >> with the number of inflections points you have it may be pretty high >> order. Linear interp instead of a continuous function may still be best. >> This is the kind of thing that starts email wars. ;-) >> >> Best wishes however you decide to cure the problem. >> >> Dave >> > > >Dave, > >If the bed were perfect, I wouldn't need a correction factor for the Z >axis. ;-) I need to keep the finished cross-section to + or - .001" at >each 1" X station. > >I'd have to rebuild the machine to use some kind of tooling plate. The >"table" is actually my vacuum hold-down. I have no way to "cut" the table >flat using the machine itself, unlike a router. The cutting head is made >up of two saw blades held at an included angle of 60 degrees, with the >"point" of the "V" at the bottom. > >I've tried to flatten the bed by filing, sanding, etc, but the problem is, >I really have no reference to the cutting head. That's how I end up with >being 2 or 3 thou low in one area, 3 or 4 thou high in other areas and so >on. I've shimmed out the table as best as I can, and this is what I'm left >with, so I'd like to correct for the Z using some kind of compensation read >into the machine. Be a lot easier to do it once, rather than having to do >it each time I create a different G Code file for each different rod and >each different section. > >I like Andy's lincurve idea. I just have to go through all the reading of >the suggestions given this morning, and work out how I can apply it to my >machine. I think lincurve will probably be the simplest approach. >------------------------------------------------------------------------------ >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 >[email protected] >https://lists.sourceforge.net/lists/listinfo/emc-users > > > > >------------------------------ > >Message: 4 >Date: Wed, 19 Nov 2014 07:25:11 -0500 >From: Mark Wendt <[email protected]> >Subject: Re: [Emc-users] Screw Mapping >To: "Enhanced Machine Controller (EMC)" > <[email protected]> >Message-ID: > <cabwwdmryghg_vhrsvbp+zyms7d-sqhu3ujqv+rg7b-+pmoz...@mail.gmail.com> >Content-Type: text/plain; charset=UTF-8 > >On Wed, Nov 19, 2014 at 7:20 AM, <[email protected]> wrote: > >> Is there a way to clamp a sander or similar to the head for use in >> flattening? A solid clamping and a series of light cuts ought to flatten to >> match the axis. >> > > >Tried that too. The way the cutting head is designed there's no real >practical way to attach a sander and hold it firmly enough in place to do >anything precise with it. > >Mark > > >------------------------------ > >Message: 5 >Date: Wed, 19 Nov 2014 07:58:12 -0500 >From: Dave Cole <[email protected]> >Subject: Re: [Emc-users] Latest Linux Build >To: Rick Lair <[email protected]>, "Enhanced Machine Controller > (EMC)" <[email protected]> >Message-ID: <[email protected]> >Content-Type: text/plain; charset=ISO-8859-1; format=flowed > >I think you are correct. > >Dave > > >On 11/19/2014 7:02 AM, 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 >> [email protected] >> 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 > > > > >------------------------------ > >Message: 6 >Date: Wed, 19 Nov 2014 07:12:26 -0600 >From: <[email protected]> >Subject: Re: [Emc-users] Screw Mapping >To: <[email protected]> >Message-ID: <[email protected]> >Content-Type: text/plain; charset="iso-8859-1" > >How about temporarily replacing one of your saw blades with a grinding wheel, >dressing it to the correct angle to be flat across the width of the vacuum >table and then light grinding passes down the table? Your saw spindles should >be plenty rigid and high enough RPM, and dressing an angle on the grinding >wheel is easy with a diamond dresser. > > >------Original Mail------ >From: "Mark Wendt" <[email protected]> >To: "Enhanced Machine Controller (EMC)" <[email protected]> >Sent: Wed, 19 Nov 2014 07:25:11 -0500 >Subject: Re: [Emc-users] Screw Mapping > >On Wed, Nov 19, 2014 at 7:20 AM, <[email protected]> wrote: > >> Is there a way to clamp a sander or similar to the head for use in >> flattening? A solid clamping and a series of light cuts ought to flatten to >> match the axis. >> > > >Tried that too. The way the cutting head is designed there's no real >practical way to attach a sander and hold it firmly enough in place to do >anything precise with it. > >Mark >------------------------------------------------------------------------------ >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 >[email protected] >https://lists.sourceforge.net/lists/listinfo/emc-users > > > > >------------------------------ > >Message: 7 >Date: Wed, 19 Nov 2014 08:17:31 -0500 >From: Mark Wendt <[email protected]> >Subject: Re: [Emc-users] Screw Mapping >To: "Enhanced Machine Controller (EMC)" > <[email protected]> >Message-ID: > <CABWWDmoPW=bRbuhA8YqcrgG61rvOXebaWt4ZU=tawvy1g9t...@mail.gmail.com> >Content-Type: text/plain; charset=UTF-8 > >On Wed, Nov 19, 2014 at 8:12 AM, <[email protected]> wrote: > >> How about temporarily replacing one of your saw blades with a grinding >> wheel, dressing it to the correct angle to be flat across the width of the >> vacuum table and then light grinding passes down the table? Your saw >> spindles should be plenty rigid and high enough RPM, and dressing an angle >> on the grinding wheel is easy with a diamond dresser. >> > > >Vacuum Hold-down/table is aluminum. How well would a grinding wheel work >with that? Spindles only go to about 4000 rpm. > >Mark > > >------------------------------ > >Message: 8 >Date: Wed, 19 Nov 2014 07:26:36 -0600 >From: Jeff Epler <[email protected]> >Subject: Re: [Emc-users] Running Mitsubishi Meldas DC servo motors > with LinuxCNC >To: "Enhanced Machine Controller (EMC)" > <[email protected]> >Message-ID: <[email protected]> >Content-Type: text/plain; charset=us-ascii > >this thread has a reverse-engineered pinout for "ZP1". >http://www.cnczone.com/forums/mazak-mitsubishi-mazatrol/77549-mitsubishi-tra41-servo-drives-interface-help-please-2.html > >as you might have expected, it looks like the amp is analog velocity >input. > http://innovative-rc.com/tra41.jpg > >Andy's PDF shows resolver feedback. > >Both Mesa and Pico have solutions for analog servo amp + resolver >feedback that work nicely with LinuxCNC. > >Jeff > > > >------------------------------ > >------------------------------------------------------------------------------ >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 >[email protected] >https://lists.sourceforge.net/lists/listinfo/emc-users > > >End of Emc-users Digest, Vol 103, Issue 45 >****************************************** ------------------------------------------------------------------------------ Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! 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