Re: [Emc-users] Harmonic gear and EMC2. ????
Aram, >From your numbers it could take over a month to traverse the entire table and perhaps four days to grind a single end mill. Does this sound excessive to you? On anther thread, you say accuracy is not as important as speed. Do you mean smoothness of travel is more important than accuracy? Why? Glenn -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Thursday, May 22, 2008 9:36 PM To: Enhanced Machine Controller (EMC) Subject: Re: [Emc-users] Harmonic gear and EMC2. Machine make up to 1 inch in diameter and 6 inch long end mill. max travel is 12-13 inch > Aram, > What is the total travel distance of the grinding table? > Glenn > > -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of > [EMAIL PROTECTED] > Sent: Thursday, May 22, 2008 6:59 PM > To: Enhanced Machine Controller (EMC) > Cc: emc-users@lists.sourceforge.net > Subject: [Emc-users] Harmonic gear and EMC2. > > I am building CNC tool grinder. > The feed for tool grinder should be from 0.00025 to 0.001 of the inch > per minute. > The servo motor must perform at this feed perfect to make a good > grinding job. > I will use direct drive and my ball screw has 5 pitch per inch. > So talking in degrees, 5 times 360 = 1800 degrees of revolution of > motor to get 1 inch for linear motion. > > To get 1 inch need turn 1800degrees/minute of motor. > To get 0.00025 need 0.45 degrees/minute of motor. > Is this too slow? > I think so. > The one solution is to take high end controller and large AC servo > motor and that is expensive. > > Jon Elson said about harmonic drive. I found here > www.harmonicdrive.net That gear can reduce up to 1 to 160. If I will > put two side by side, it gives to me 25600 to 1 reduction. > So 0.45degrees/minute times 25600 equal 11520degrees/minute, or 32 > revolution per minute. > 32 revolution per minute is good range to any AC servomotor and with > 8192 pulse per revolution drive and EMC2 will have enough pulses to be > accurate. > > All harmonic drives have 0 backlash. One piece for NEMA34 cost $1500 > and per axis it is $3500 with special plates etc. > > 5 axis is $17, 500 is to gears a lone to make good CNC tool grinder. > I think it is very good idea! > Instead of making electronics part and programming more complicated ( > and not all can understand that part - I can not for sure) it is much > better use mechanical gear reducer and use less expensive and more > robust drives and software. > > I am correct? > Aram > > > > > -- > --- This SF.net email is sponsored by: Microsoft Defy all challenges. > Microsoft(R) Visual Studio 2008. > http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > > > -- > --- This SF.net email is sponsored by: Microsoft Defy all challenges. > Microsoft(R) Visual Studio 2008. > http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Harmonic gear and EMC2. ????
i forgot to say that all good grinding machine have linear incoder or scale alog a axis so inaccuracy of ball screw will not effect final out put of servomotor. am i right? > Hi Aram > > I don't think it's the diameter that's important (unless the forces on > the screw will be very high). The important specs have to do with screw > pitch error, preload on the ballnut, and also the end bearings. A good > screw will have maybe 0.001 error over 1 foot, the best I saw with a web > search were only 0.0005"/foot. To get the kind of precision you're > looking for, you will likely have to have very good temperature control > (like coolant through the screw), do an analysis of the amount of flex > in the shaft due to loading, etc. > > I think the precision of the mechanics will be a much bigger problem > than moving a motor at low speed. > > IANAME, so YMMV (I am not a mechanical engineer, so your mileage may > vary :) ) > - Steve > > [EMAIL PROTECTED] wrote: > >>I bought everything from company that represent company from Taiwan, and >>it is 20 mm in OD and pitch 5 mm. that screw only as a demo to show how >>slow it can go. Real machine will have much larger OD of ball screw. >>aram >> >> >> >>>On Thu, 2008-05-22 at 19:59 -0600, [EMAIL PROTECTED] wrote: >>> >>> >>> my ball screw has 5 pitch per inch. >>>What are the specifications of that screw and nut? >>> >>>Rayh >>> >>> > > - > This SF.net email is sponsored by: Microsoft > Defy all challenges. Microsoft(R) Visual Studio 2008. > http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Harmonic gear and EMC2. ????
accuracy of machine is important but feed should be low enough to grinding wheel can do the job. grinding of solid carbide is slow process. screw may be 0.005 inaccuracy but feeding need be very slow to do the grinding. aram > Hi Aram > > I don't think it's the diameter that's important (unless the forces on > the screw will be very high). The important specs have to do with screw > pitch error, preload on the ballnut, and also the end bearings. A good > screw will have maybe 0.001 error over 1 foot, the best I saw with a web > search were only 0.0005"/foot. To get the kind of precision you're > looking for, you will likely have to have very good temperature control > (like coolant through the screw), do an analysis of the amount of flex > in the shaft due to loading, etc. > > I think the precision of the mechanics will be a much bigger problem > than moving a motor at low speed. > > IANAME, so YMMV (I am not a mechanical engineer, so your mileage may > vary :) ) > - Steve > > [EMAIL PROTECTED] wrote: > >>I bought everything from company that represent company from Taiwan, and >>it is 20 mm in OD and pitch 5 mm. that screw only as a demo to show how >>slow it can go. Real machine will have much larger OD of ball screw. >>aram >> >> >> >>>On Thu, 2008-05-22 at 19:59 -0600, [EMAIL PROTECTED] wrote: >>> >>> >>> my ball screw has 5 pitch per inch. >>>What are the specifications of that screw and nut? >>> >>>Rayh >>> >>> > > - > This SF.net email is sponsored by: Microsoft > Defy all challenges. Microsoft(R) Visual Studio 2008. > http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Harmonic gear and EMC2. ????
Machine make up to 1 inch in diameter and 6 inch long end mill. max travel is 12-13 inch > Aram, > What is the total travel distance of the grinding table? > Glenn > > -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of > [EMAIL PROTECTED] > Sent: Thursday, May 22, 2008 6:59 PM > To: Enhanced Machine Controller (EMC) > Cc: emc-users@lists.sourceforge.net > Subject: [Emc-users] Harmonic gear and EMC2. > > I am building CNC tool grinder. > The feed for tool grinder should be from 0.00025 to 0.001 of the inch per > minute. > The servo motor must perform at this feed perfect to make a good grinding > job. > I will use direct drive and my ball screw has 5 pitch per inch. > So talking in degrees, 5 times 360 = 1800 degrees of revolution of motor > to > get 1 inch for linear motion. > > To get 1 inch need turn 1800degrees/minute of motor. > To get 0.00025 need 0.45 degrees/minute of motor. > Is this too slow? > I think so. > The one solution is to take high end controller and large AC servo motor > and > that is expensive. > > Jon Elson said about harmonic drive. I found here www.harmonicdrive.net > That > gear can reduce up to 1 to 160. If I will put two side by side, it gives > to > me 25600 to 1 reduction. > So 0.45degrees/minute times 25600 equal 11520degrees/minute, or 32 > revolution per minute. > 32 revolution per minute is good range to any AC servomotor and with 8192 > pulse per revolution drive and EMC2 will have enough pulses to be > accurate. > > All harmonic drives have 0 backlash. One piece for NEMA34 cost $1500 and > per > axis it is $3500 with special plates etc. > > 5 axis is $17, 500 is to gears a lone to make good CNC tool grinder. > I think it is very good idea! > Instead of making electronics part and programming more complicated ( and > not all can understand that part - I can not for sure) it is much better > use > mechanical gear reducer and use less expensive and more robust drives and > software. > > I am correct? > Aram > > > > > - > This SF.net email is sponsored by: Microsoft Defy all challenges. > Microsoft(R) Visual Studio 2008. > http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > > > - > This SF.net email is sponsored by: Microsoft > Defy all challenges. Microsoft(R) Visual Studio 2008. > http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Harmonic gear and EMC2. ????
Aram, What is the total travel distance of the grinding table? Glenn -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Thursday, May 22, 2008 6:59 PM To: Enhanced Machine Controller (EMC) Cc: emc-users@lists.sourceforge.net Subject: [Emc-users] Harmonic gear and EMC2. I am building CNC tool grinder. The feed for tool grinder should be from 0.00025 to 0.001 of the inch per minute. The servo motor must perform at this feed perfect to make a good grinding job. I will use direct drive and my ball screw has 5 pitch per inch. So talking in degrees, 5 times 360 = 1800 degrees of revolution of motor to get 1 inch for linear motion. To get 1 inch need turn 1800degrees/minute of motor. To get 0.00025 need 0.45 degrees/minute of motor. Is this too slow? I think so. The one solution is to take high end controller and large AC servo motor and that is expensive. Jon Elson said about harmonic drive. I found here www.harmonicdrive.net That gear can reduce up to 1 to 160. If I will put two side by side, it gives to me 25600 to 1 reduction. So 0.45degrees/minute times 25600 equal 11520degrees/minute, or 32 revolution per minute. 32 revolution per minute is good range to any AC servomotor and with 8192 pulse per revolution drive and EMC2 will have enough pulses to be accurate. All harmonic drives have 0 backlash. One piece for NEMA34 cost $1500 and per axis it is $3500 with special plates etc. 5 axis is $17, 500 is to gears a lone to make good CNC tool grinder. I think it is very good idea! Instead of making electronics part and programming more complicated ( and not all can understand that part - I can not for sure) it is much better use mechanical gear reducer and use less expensive and more robust drives and software. I am correct? Aram - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Harmonic gear and EMC2. ????
Hi Aram I don't think it's the diameter that's important (unless the forces on the screw will be very high). The important specs have to do with screw pitch error, preload on the ballnut, and also the end bearings. A good screw will have maybe 0.001 error over 1 foot, the best I saw with a web search were only 0.0005"/foot. To get the kind of precision you're looking for, you will likely have to have very good temperature control (like coolant through the screw), do an analysis of the amount of flex in the shaft due to loading, etc. I think the precision of the mechanics will be a much bigger problem than moving a motor at low speed. IANAME, so YMMV (I am not a mechanical engineer, so your mileage may vary :) ) - Steve [EMAIL PROTECTED] wrote: >I bought everything from company that represent company from Taiwan, and >it is 20 mm in OD and pitch 5 mm. that screw only as a demo to show how >slow it can go. Real machine will have much larger OD of ball screw. >aram > > > >>On Thu, 2008-05-22 at 19:59 -0600, [EMAIL PROTECTED] wrote: >> >> >> >>>my ball screw has 5 pitch per inch. >>> >>> >>What are the specifications of that screw and nut? >> >>Rayh >> >> - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Harmonic gear and EMC2. ????
I bought everything from company that represent company from Taiwan, and it is 20 mm in OD and pitch 5 mm. that screw only as a demo to show how slow it can go. Real machine will have much larger OD of ball screw. aram > On Thu, 2008-05-22 at 19:59 -0600, [EMAIL PROTECTED] wrote: > >> my ball screw has 5 pitch per inch. > > What are the specifications of that screw and nut? > > Rayh > > > > > - > This SF.net email is sponsored by: Microsoft > Defy all challenges. Microsoft(R) Visual Studio 2008. > http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Harmonic gear and EMC2. ????
On Thu, 2008-05-22 at 19:59 -0600, [EMAIL PROTECTED] wrote: > my ball screw has 5 pitch per inch. What are the specifications of that screw and nut? Rayh - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Harmonic gear and EMC2. ????
I am building CNC tool grinder. The feed for tool grinder should be from 0.00025 to 0.001 of the inch per minute. The servo motor must perform at this feed perfect to make a good grinding job. I will use direct drive and my ball screw has 5 pitch per inch. So talking in degrees, 5 times 360 = 1800 degrees of revolution of motor to get 1 inch for linear motion. To get 1 inch need turn 1800degrees/minute of motor. To get 0.00025 need 0.45 degrees/minute of motor. Is this too slow? I think so. The one solution is to take high end controller and large AC servo motor and that is expensive. Jon Elson said about harmonic drive. I found here www.harmonicdrive.net That gear can reduce up to 1 to 160. If I will put two side by side, it gives to me 25600 to 1 reduction. So 0.45degrees/minute times 25600 equal 11520degrees/minute, or 32 revolution per minute. 32 revolution per minute is good range to any AC servomotor and with 8192 pulse per revolution drive and EMC2 will have enough pulses to be accurate. All harmonic drives have 0 backlash. One piece for NEMA34 cost $1500 and per axis it is $3500 with special plates etc. 5 axis is $17, 500 is to gears a lone to make good CNC tool grinder. I think it is very good idea! Instead of making electronics part and programming more complicated ( and not all can understand that part - I can not for sure) it is much better use mechanical gear reducer and use less expensive and more robust drives and software. I am correct? Aram - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] List of CVS committers
On Thu, May 22, 2008 at 07:32:37PM +0100, paul_c wrote: > > Please provide a full list of "developers" who have access to the repository. These are the people who currently have commit access: Alan Condit Alex Joni Anders Wallin Bas Laarhoven Ben Lipkowitz Chris Morley Chris Radek Eric H. Johnson Florian Hahn Francis Tisserant Frank Jungclaus Janne Koponen Jarl Stefansson Jeff Epler John Kasunich Jon Elson Kenneth Lerman Lawrence Glaister Matt Shaver Patrick Robin Peter Vavaroutsos Ray Henry Sebastian Kuzminsky Stephen Wille Padnos If you do not know who to send a particular patch to, it's probably best to ask on the emc-developers list. If the patch is short you could even just send it to the list and let someone claim it. - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Still Crashing
paul_c wrote: >On Wednesday 21 May 2008, Stephen Wille Padnos wrote: > > >> email them to a developer for review and possible inclusion. >> >> > >Please provide a full list of "developers" who have access to the repository. > > I don't have the full list at the moment, and it's unnecessary. If you need the name of a developer to whom patches can be sent, then any of the board members would do. There are several others who could also serve, depending on the subsystem you're changing. You should ask them first, or ask on this list for people who are interested in reviewing a particular patch. In no particular order, and without their endorsement, here are some names to choose from, and the subsystems I think they may be most interested in: Ken Lerman for interpreter changes (though Alex and Chris are also excellent choices). Ray Henry for tkemc or mini UI changes. Jon Elson would probably be the best person for modifications to drivers that support his hardware. Seb Kuzminsky for mesa driver changes. Chris Morley for classicladder. You also have the option of providing your public SSH key to Chris, so you can get developer access yourself. - Steve - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Still Crashing
On Wednesday 21 May 2008, Stephen Wille Padnos wrote: > email them to a developer for review and possible inclusion. Please provide a full list of "developers" who have access to the repository. --- Paul. - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Still crashing
Paul: Coincidently, two nights ago I tried just what you tried, in my case downloading the complete Release-2.2.5 from cvs.linuxcnc.org. I used a newly installed Linux and I have had no previous interaction with the cvs system ever, so there shouldn't have been any detritis left over to confuse the issue. I followed the published instructions and everything worked perfectly right out of the chute. I'm located in Gaithersburg, MD USA and access the Internet via the local Comcast cable system. Following my signature line is the output from tracert (yes, I'm an O/S switchhitter): After the first dozen hops, my routing is basically the same as the one Jeff already published (ok, so tracert reported the ip-provider's name for the target host lin-dsl-static-206-222-212-221.inetnebr.com instead of the DNS A-record name cvs.linuxcnc.org, but that's a trivial point. You'd get the same behavior if you went looking for a virtual dedicated host I run on a commercial provider's system. Unix commands like dns or dig will confirm the A-record for cvs.linuxcnc.org.). Over the years, I ran a large collection of Unix, Linux, and Windows hosts at work. Whenever communications got squirrelly with them, I started debugging by making sure I didn't have rogue entries in the localhost and routing tables that were shortstopping my attempts to "reach out and touch someone." Good hunting! Regards, Kent ---begin--- Tracing route to cvs.linuxcnc.org [206.222.212.221] over a maximum of 30 hops: 1 1 ms<1 ms<1 ms 192.168.1.1 2 *** Request timed out. 313 ms11 ms11 ms ge-4-22-ur01.rockville.md.bad.comcast.net [68.87.136.49] 410 ms13 ms10 ms po-30-ur02.rockville.md.bad.comcast.net [68.87.129.154] 511 ms 9 ms 9 ms po-60-ur03.rockville.md.bad.comcast.net [68.87.129.158] 613 ms11 ms26 ms po-30-ar01.howardcounty.md.bad.comcast.net [68.87.136.5] 717 ms14 ms14 ms po-10-ar02.whitemarsh.md.bad.comcast.net [68.87.129.34] 817 ms16 ms18 ms 68.86.90.21 919 ms18 ms19 ms pos-0-7-0-0-cr01.newyork.ny.ibone.comcast.net [68.86.85.14] 1062 ms 117 ms24 ms xe-10-2-0.edge1.NewYork2.Level3.net [4.78.169.49] 1132 ms18 ms35 ms vlan79.csw2.NewYork1.Level3.net [4.68.16.126] 1230 ms19 ms33 ms ae-72-72.ebr2.NewYork1.Level3.net [4.69.134.85] 1360 ms48 ms54 ms ae-2.ebr1.Chicago1.Level3.net [4.69.132.65] 1459 ms53 ms54 ms ae-68.ebr3.Chicago1.Level3.net [4.69.134.58] 1573 ms71 ms83 ms ae-3.ebr2.Denver1.Level3.net [4.69.132.61] 1673 ms72 ms71 ms ge-5-0-0-54.gar1.Denver1.Level3.net [4.68.107.98] 1783 ms83 ms96 ms ALLTEL-COMMU.gar1.Denver1.Level3.net [4.79.74.14] 1883 ms83 ms81 ms h183.28.213.151.ip.alltel.net [151.213.28.183] 1994 ms82 ms86 ms h184.28.213.151.ip.alltel.net [151.213.28.184] 2090 ms98 ms83 ms h114.52.170.216.ip.alltel.net [216.170.52.114] 21 110 ms 110 ms 109 ms lin-dsl-static-206-222-212-217.inetnebr.com [206.222.212.217] 22 113 ms 111 ms 113 ms unpythonic.net [206.222.212.218] 23 112 ms 116 ms 115 ms lin-dsl-static-206-222-212-221.inetnebr.com [206.222.212.221] Trace complete. ---end--- - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Way OT: Contact Lube
Kirk Wallace wrote: > I have a Hobart TIG with really stiff AC/DC+/DC- and AMP range > selectors. They are eight inch rotary switches with 1/8th inch thick > blades and wipers. Does anyone have a favorite lube or should I run them > dry? I tried an electronics cleaner/lube and it turned into a stiff wax. > (EMC tie in: I can't work on the Shizuoka until I get it fixed.) > Very likely it is the SHAFT and bushing that are stiff, not the contacts themselves. Jon - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Way OT: Contact Lube
Lubri-Plate has been a fave of mine for years. Should be available at electronics supply places. Emory On Thu, May 22, 2008 at 12:41 AM, Kirk Wallace <[EMAIL PROTECTED]> wrote: > I have a Hobart TIG with really stiff AC/DC+/DC- and AMP range > selectors. They are eight inch rotary switches with 1/8th inch thick > blades and wipers. Does anyone have a favorite lube or should I run them > dry? I tried an electronics cleaner/lube and it turned into a stiff wax. > (EMC tie in: I can't work on the Shizuoka until I get it fixed.) > > -- > Kirk Wallace (California, USA > http://www.wallacecompany.com/machine_shop/ > Hardinge HNC/EMC CNC lathe, > Bridgeport mill conversion, doing XY now, > Zubal lathe conversion pending > Craftsman AA 109 restoration > Shizuoka ST-N/EMC CNC) > > > - > This SF.net email is sponsored by: Microsoft > Defy all challenges. Microsoft(R) Visual Studio 2008. > http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > -- Emory Smith [EMAIL PROTECTED] - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] OT: Synergy
On Thu, 2008-05-22 at 12:43 +, jbraun wrote: > Kirk Wallace <[EMAIL PROTECTED]> writes: > > > > > with synergy cad installed (you probably knew this). > > > > No, I didn't know. You mean EMC BDI? Bob at Weber Systems indicated to > > me that they will release a Synergy for Ubuntu in a couple of weeks. I > > am anxious to give it a try. > yes the other emc project. emc2 is my main interest of course. Good news > regarding ubuntu. > > Supporting a product that supports linux feels to be in our best interest. > Suppose that's where my real interest in synergy can be found. Plus an honest > install of mastercam is far beyond my means. > > re the "older than dirt" comment. Fedora 4 is older than I thought. Seems > like > yesterday the Fedora project was created. Any credibility I might have had > as a > linux historian is now gone. > > Information such as the meaning of levels, what to expect in the way of free > updates, etc, should be available without contacting synergy directly. > Hopefully they will participate in any wiki effort. Bob at Weber said he would look into setting up a wiki at a remote service they use to serve downloads. I asked about what sort of editorial policy they might put in place. The answer was that they would participate to see that answers to questions were accurate but would do not sanitizing of comments. They really would like a place where their newer customers can share experience. I seem to remember installing the Synergy demo on Mandrake about the time that RedHat switched from their traditional 5 and 6 series to Fedora. (way older than dirt!) I've been using parts of the Synergy Ubuntu alpha and beta for some time and find it to be quite good. I've not seen it fail at all. I recommend that you leave it installed in /usr/weber, the default when you unpack it. We know that is not the ordinary Ubunut/Linux way these days but it is the Unix way that Synergy grew up with. There are also ways around loosing some preferences when you unpack a new version. Certain files in several of the weber directories are untouched when the new files are installed but those files are read last for config and script customization stuff. HTH Rayh BTW -- Nancy at Weber is an interested member of this list. They have an EMC2 install in their office and test their work against that install. - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Way OT: Contact Lube
Kirk Wallace wrote: > I have a Hobart TIG with really stiff AC/DC+/DC- and AMP range > selectors. They are eight inch rotary switches with 1/8th inch thick > blades and wipers. Does anyone have a favorite lube or should I run them > dry? I tried an electronics cleaner/lube and it turned into a stiff wax. > (EMC tie in: I can't work on the Shizuoka until I get it fixed.) > "Conduto-Lube" from http://www.cool-amp.com/ might do the trick. I've never used it, but I have used the company's other product, a powder that lets you silver plate high current busbar connections using a rag, water, and elbow grease. Yikes - $54 for a 1-oz jar... (it contains silver). There is probably something cheaper. Regards, John Kasunich - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] OT: Synergy
Kirk Wallace <[EMAIL PROTECTED]> writes: > > with synergy cad installed (you probably knew this). > > No, I didn't know. You mean EMC BDI? Bob at Weber Systems indicated to > me that they will release a Synergy for Ubuntu in a couple of weeks. I > am anxious to give it a try. yes the other emc project. emc2 is my main interest of course. Good news regarding ubuntu. Supporting a product that supports linux feels to be in our best interest. Suppose that's where my real interest in synergy can be found. Plus an honest install of mastercam is far beyond my means. re the "older than dirt" comment. Fedora 4 is older than I thought. Seems like yesterday the Fedora project was created. Any credibility I might have had as a linux historian is now gone. Information such as the meaning of levels, what to expect in the way of free updates, etc, should be available without contacting synergy directly. Hopefully they will participate in any wiki effort. - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] address change
To change your subscription, use the link at the bottom of each list e-mail > https://lists.sourceforge.net/lists/listinfo/emc-users to remove the subscription to your old address and add the new one. Jeff - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] address change
Plase stop sending the EMC mail to me at [EMAIL PROTECTED] The new address is [EMAIL PROTECTED] Thanks Best regards Bill Blair- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Micro stepper driver MSD542 / KL-5042 cont.
Hi Aaron, In your control box, your step and direction have to be kept well away from all your drive power and motor cables. Ghost step and direction signals can be INDUCED in your step and direction lines if the motor or drive power cables run parallel to them. I would try to run logic signals on one side and power on the other. logic and power lines should only cross at right angles. Dan - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Still Crashing
At 03:10 PM 5/21/2008, you wrote: >On Wednesday 21 May 2008, John Kasunich wrote: > > EVERYONE has anonymous read access: > > http://cvs.linuxcnc.org/cvs/ > >`ping http://cvs.linuxcnc.org` - Fail >`traceroute cvs.linuxcnc.org` - Stops somewhere in the alltel.net system. >`cvs -z5 -d:ext:[EMAIL PROTECTED]:/cvs co emc2` - Connection times out. > > Your assertion is incorrect, likewise, I was in error in claiming you had >labelled me an ex-developer - It was some minor nobody on IRC a year or two >ago.. > >--- > > Paul. Just because the network connection fails you, doesn't mean you don't have anonymous read access on the cvs. If your network connection never gets to the server, how you say that John's assertion is incorrect? Sounds like a case of sour grapes to me, and you're doing anything you can to come up with things to say out of spite. Unfortunately, in this case, it makes you look like an AOL customer. Mark - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Micro stepper driver MSD542 / KL-5042 cont.
On Thu, 2008-05-22 at 05:15 +, aaron Moore wrote: > Actually am having similar problems with mach but not as pronounced > Aaron > > - Original Message - > > From: "John Thornton" <[EMAIL PROTECTED]> > > To: "Enhanced Machine Controller (EMC)" > > Subject: Re: [Emc-users] Micro stepper driver MSD542 / KL-5042 cont. > > Date: Wed, 21 May 2008 17:38:54 -0600 > > > > > > They came out fine. I see your using a center pull on the Y, novel > > idea. Keep in your > > mind that the Y motor sees a substantial load compared to the X as > > it it carrying the > > weight and drag of both. > > > > Do you know the timing settings you used in Mach? > > > > John It's a nice looking machine, nice size. I like the wheels, but is there a way to level it? I have no experience with this type of machine, but the distance between the fore and aft bearing blocks on the right and left carriages looks to be about a foot. I would like to see that be allot longer or go to a belt or rack and pinion that drives and synchronizes both sides. I'd be tempted to disconnect the lead screw nut, get underneath the table and move the gantry by hand at the planned speeds and accelerations to get a feel for the force it would take and check for binding. -- Kirk Wallace (California, USA http://www.wallacecompany.com/machine_shop/ Hardinge HNC/EMC CNC lathe, Bridgeport mill conversion, doing XY now, Zubal lathe conversion pending Craftsman AA 109 restoration Shizuoka ST-N/EMC CNC) - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
