Re: [Emc-users] How to Correct Angular Axes Misaligment in Software?
Tramming the spindle will tell you how perpendicular the spindle centerline is to that particular spot on the table surface. It will not tell you the perpendicularity of the spindle centerline (or the Z axis) to the XY plane. The actual level of the machine is almost irrelevent. If all the machine components are fixed at the same level values and the machine is straight and square you will be able to machine straight and square. Sent via BlackBerry from T-Mobile -Original Message- From: Florian Rist fr...@fs.tum.de Date: Wed, 02 Dec 2009 17:04:26 To: Andy Pugha...@andypugh.fsnet.co.uk; Enhanced Machine Controller \EEMC\emc-users@lists.sourceforge.net Subject: Re: [Emc-users] How to Correct Angular Axes Misaligment in Software? Hi Andy I think that truing up the axes can be seen as part of the installation and commissioning procedure. Well, it should be, but in this case the machine was delivered and used productively right away without any in-depth testing and up to now the errors were not noticed because the mill is usually used by students to mill simple parts for architectural model making. Does the machine have a twin-drive X axis? No, it´s a single steeper motor on the y axis and it´s rotation is transmitted to the two y axis lead screw by a tooth belt. It sounds like it is possible that the drives are out of synch, ... If the drives are linked by a belt, then it might simply be a case of releasing some shaft clamps and running the axis up and down my hand, re-tightening and re-checking. I tried that, unfortunately I can only move one side by about 1 mm (about 3 mm would be required). Z-axis alignment might also turn out to be relatively easy. A dial indicator mounted on the spindle such that it describes a circle on the machine table will give a very good measure of squareness, and will also indicate how your adjustments are working. That´s how I measured the misalignment. I also have a coordinate measuring arm at hand; it might be useful when I deice to take apart larger parts of the machine to cure all misalignments. It is not uncommon to find jacking screws built into the linear rail mounting arrangement, for example (but this might not be relevant to your machine) I don´t´ see any, unfortunately. Given the machine type and the reported problem, I would be concerned that the axes are twisted and fighting each other. It looks like the table is deformed from rectangular to a parallelogramlike shape. The table is just a bolted aluminum construction and it´s lacking a diagonal element to stabilize the rectangular shape. Is the machine securely bolted to the floor absolutely flat and level? Yes. Even traditional cast iron machines can be twisted by uneven floors, and it is more likely to be a problem with a fabricated steel/aluminium frame. A good spirit level should show up any twist (check it both ways on all 4 edges) I did when the machine was installed, even tough I didn´t have a high precision spirit level. The machine should be horizontal with a maximum deviation of 0.5 mm per meter. Good enough? See you Florian -- Join us December 9, 2009 for the Red Hat Virtual Experience, a free event focused on virtualization and cloud computing. Attend in-depth sessions from your desk. Your couch. Anywhere. http://p.sf.net/sfu/redhat-sfdev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Join us December 9, 2009 for the Red Hat Virtual Experience, a free event focused on virtualization and cloud computing. Attend in-depth sessions from your desk. Your couch. Anywhere. http://p.sf.net/sfu/redhat-sfdev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] What hardware should buy to start
Try a conventional cut for the finish pass on steel and see if you don't like the finish better. Sent via BlackBerry from T-Mobile -Original Message- From: Jon Elson el...@pico-systems.com Date: Sat, 05 Sep 2009 13:41:39 To: Enhanced Machine Controller (EMC)emc-users@lists.sourceforge.net Subject: Re: [Emc-users] What hardware should buy to start Gene Heskett wrote: You can't do anything about the surface of the raw material, but when machining, the surface should be well flooded by some relatively oxygen free fluid which will cover the cutting edge, and the freshly cut surface as quickly as possible. 2 schools of thought here, compete for how you do it. Either assumes the cut will be as deep as the spindle has power to do as that removes the unwanted material with fewer miles on the cutting edge. One other thing is the direction of cut. If the material is fed against the direction of the cutting edge, noramlly called conventional milling, the cutter enters the material by scraping along the just-cut material until pressure builds enough for it to punch through. This scraping increases wear. The opposite is when the material is fed WITH the cutting edge, there the cutting tooth punches hard into the uncut material, and takes a slice that slowly decreases in thickness. This is called climb milling. This mode produces a lot less wear on the cutter, but it requires a tight machine, as this direction of feed has the cutter pulling the work, and machine table, toward it! If you have a lot of backlash in worn Acme leadscrews, this direction can cause the work to jump into the cutter, wrecking parts and breaking cutters. But, on a machine with tight screws, especially ballscrews, the results, in terms of surface finish and cutter life will be quite significant. Jon -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] classicladder not functioning
Chris, Argh - reading and thinking Where is the automagic script? Thanks - I will work on it :) Stuart Sent via BlackBerry from T-Mobile -Original Message- From: Chris Radek ch...@timeguy.com Date: Mon, 29 Jun 2009 11:39:45 To: Enhanced Machine Controller (EMC)emc-users@lists.sourceforge.net Subject: Re: [Emc-users] classicladder not functioning On Mon, Jun 29, 2009 at 10:19:18AM -0500, Stuart Stevenson wrote: Gentlemen, Ubuntu 6.06 EMC2-trunk (git pull this morning) Cinci 5axis machine the var %I7 shows on the section dislay %I7 is not on and the lube timer does not run screen shot is here http://imagebin.org/53991 This must be an old ladder you've brought forward from 2.2. The timer change, and other important things you should know, are on the UPDATING page. http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?UPDATING#Classicladder_changes -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Jitter problem
Doug, I use emc in virtualbox on my laptop. It seems to run just fine for testing. Virtualbox does not use the parallel port yet. Stuart Sent via BlackBerry from T-Mobile -Original Message- From: Douglas Pollard dougp...@verizon.net Date: Sun, 10 May 2009 12:57:32 To: Enhanced Machine Controller (EMC)emc-users@lists.sourceforge.net Subject: [Emc-users] Jitter problem I bought a used IBM Think Centre 3 ghz. intel chip that after a latency test proved to be useless in running EMC2. I also have an Hp dual core 64 bit machine that is my personal desktop machine. 2.4 ghz 1 g ram I thought EMC2 would not run on it. I recently saw someplace on line saying it could run on one of the chips but not both. Does anyone know anything about this. I really don't want to go looking for another used computer. Doug -- The NEW KODAK i700 Series Scanners deliver under ANY circumstances! Your production scanning environment may not be a perfect world - but thanks to Kodak, there's a perfect scanner to get the job done! With the NEW KODAK i700 Series Scanner you'll get full speed at 300 dpi even with all image processing features enabled. http://p.sf.net/sfu/kodak-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- The NEW KODAK i700 Series Scanners deliver under ANY circumstances! Your production scanning environment may not be a perfect world - but thanks to Kodak, there's a perfect scanner to get the job done! With the NEW KODAK i700 Series Scanner you'll get full speed at 300 dpi even with all image processing features enabled. http://p.sf.net/sfu/kodak-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Users Locations
This is not really a complaint as I am not sure if it is my fault or not. I can log on from my blackberry but will shortly need to log on again. Also, I cannot view the map. I tried to vote on one of the poles to see if it would work. I received a 403 error. This is likely my fault and I will work to fix it. Sent via BlackBerry from T-Mobile -Original Message- From: Steve Stallings steve...@newsguy.com Date: Sun, 12 Apr 2009 11:43:19 To: 'Enhanced Machine Controller \(EMC\)'emc-users@lists.sourceforge.net Subject: Re: [Emc-users] Users Locations OK, it is working well, now could we have the sign in on the main page give a clue to uninformed visitors as to why they might want to register and sign in? Steve Stallings -Original Message- From: John Thornton [mailto:jet1...@semo.net] Sent: Sunday, April 12, 2009 9:03 AM To: Enhanced Machine Controller EEMC Subject: Re: [Emc-users] Users Locations On 11 Apr 2009 at 23:04, Alex Joni wrote: Hi there. Some quick update about this thread. I followed the suggestions people had ([1],[2]), and added some extensions to the website www.linuxcnc.org: SWEET! You should see the flags on the map now... John -- This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] emc2.3.0beta2
Design and build a link to connect the tailstock to the saddle. You will then be able to push/pull to position as you wish Stuart Sent via BlackBerry from T-Mobile -Original Message- From: Jon Elson el...@pico-systems.com Date: Sun, 29 Mar 2009 22:03:28 To: Enhanced Machine Controller (EMC)emc-users@lists.sourceforge.net Subject: Re: [Emc-users] emc2.3.0beta2 Leslie Newell wrote: The main reason why I haven't done this is that I often use the saddle to move the tailstock back up the bed. The tailstock on my lathe is damn heavy. So is mine, on my 15 Sheldon. I can just barely move either the lower or upper half of it myself, and have to disassemble to pieces if I ever want to take it off the lathe. But, with just a little way oil under it, it glides like silk. Jon -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Preffered way to add file extensions to the Axis userinterface?
Are you able to config youer cam output to ngc? Sent via BlackBerry from T-Mobile -Original Message- From: jvanick jvan...@oaknet.com Date: Tue, 10 Mar 2009 10:25:57 To: emc-users@lists.sourceforge.net Subject: [Emc-users] Preffered way to add file extensions to the Axis user interface? My gcode generating application (VCarve Pro) creates gcode files with a .tap extension... I've been editing /usr/bin/axis and adding the file extension into the list after each upgrade/install, but I'm wondering if there's a configuration file method for doing this that might keep settings across installs/upgrades. Thanks! -J -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] OT: the CNCer personality
Sometimes - I can't get no satisfaction, but I try Sent via BlackBerry from T-Mobile -Original Message- From: Kent A. Reed knbr...@erols.com Date: Fri, 09 Jan 2009 15:08:07 To: emc-users@lists.sourceforge.net Subject: [Emc-users] OT: the CNCer personality Stuart Stevenson wrote: Reminds me of a line in the movie 'HOOK' - I want, I want, I want, me, me, me, mine, mine, mine, now, now,now To quote Mick Jagger and the Rolling Stones: You can't always get what you want You can't always get what you want You can't always get what you want But if you try sometimes you just might find You get what you need Regards, Kent -- Check out the new SourceForge.net Marketplace. It is the best place to buy or sell services for just about anything Open Source. http://p.sf.net/sfu/Xq1LFB ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Check out the new SourceForge.net Marketplace. It is the best place to buy or sell services for just about anything Open Source. http://p.sf.net/sfu/Xq1LFB ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] dahlih
The part looks exactly like the motion trace not the preview - at all overrides. Sent via BlackBerry from T-Mobile -Original Message- From: Gene Heskett [EMAIL PROTECTED] Date: Fri, 05 Dec 2008 20:10:27 To: Enhanced Machine Controller \(EMC\)emc-users@lists.sourceforge.net Subject: Re: [Emc-users] dahlih On Friday 05 December 2008, Stuart Stevenson wrote: Gentlemen, screenshot is here - http://imagebin.ca/view/7sXPYvWb.html And that looks exactly like what a very slow axis screen update would do, cuz it doesn't get to sample it often enough to draw a good follow. Are you sure the part itself is actually cut like the axis shot says? I have had axis to things like that to me, and only by slowing the base trhead down (I use steppers) and giveing the graphics more to to update, was I able to reduce it enough that I can believe axis for the most part. Test, cut air at 120% feedrate, and at 5% feedrate, without clearing the screen with the 'broom' between runs. I'm pretty sure you will see the effect. FWIW, I got that much much worse when using the nvidia drivers with an nvidia card, it was better with the nv driver, and a lot better with the vesa driver. -- Cheers, Gene There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) You're very sure of your facts, he said at last, I couldn't trust the thinking of a man who takes the Universe - if there is one - for granted. -- SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. The future of the web can't happen without you. Join us at MIX09 to help pave the way to the Next Web now. Learn more and register at http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. The future of the web can't happen without you. Join us at MIX09 to help pave the way to the Next Web now. Learn more and register at http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Lathe support
Why would the turned radius be ellitical? Sent via BlackBerry from T-Mobile -Original Message- From: Leslie Newell [EMAIL PROTECTED] Date: Sun, 09 Nov 2008 23:55:45 To: Enhanced Machine Controller (EMC)emc-users@lists.sourceforge.net Subject: Re: [Emc-users] Lathe support Hi Jon, If you just want diameter readout, what would happen if you changed the INPUT_SCALE to be half the value? BTDT. The problem, as you mentioned, is that arcs come out elliptical. First part doesn't sound too hard, but I haven't heard of anyone using the joystick inputs like that with EMC. Heh, I'm good at breaking new ground :-) I was the very first to do the same thing with Mach. I was also the first to implement MPGs in Mach, long before Art wrote the parallel port MPG support. This page http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Using_A_Joypad_To_Move_Your_CNC_Machine talks about using a joypad to emulate encoders. Presumably the emulated encoders could also be used to control FRO. Another possibility may be hal_joystick http://linuxcnc.org/docs/html/man/man1/hal_joystick.1.html. I have to admit I am still a little vague on how everything ties together at the moment. It will take me a little time to get my head around HAL configuration. The way the analog joystick works on most PCs requires timing loops, which is sort of messy on a real time system. I should have been a bit clearer. I meant a USB joystick so all the messy timing is done on the joystick controller (yes, many still use an R-C timer instead of a proper ADC). No. Using them together sounds a bit tricky. The X axis is a continuum, and you want to have the sign flip over when you switch to a different tool. I suppose there probably is a way to do this, though. It would require something between EMC and the servo axis to flip the direction. HAL could cetainly do that, but getting it to move smoothly when you change the sign and offset would take some care. Also, making sure everything was in a safe position when you switch over would need to be addressed. Unfortunately this has to be done at interpreter level because you have to flip the X in work coordinates rather than machine coordinates. Like radius/diameter it is purely a tweak to the numbers the user sees rather than any changes to the internal motion. Lathes are rather strange beasts... Les - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Home Switches
Do a 'g92 z0' after you home the machine. This will reset the position. Restart to confirm. Sent via BlackBerry from T-Mobile -Original Message- From: Len Shelton [EMAIL PROTECTED] Date: Fri, 7 Nov 2008 11:17:19 To: 'Enhanced Machine Controller \(EMC\)'emc-users@lists.sourceforge.net Subject: [Emc-users] Home Switches I am trying to setup a new machine with EMC2 and Axis using home switches. Everything seems to be working fine, except that z sets itself to 8.5202 after homing. Even though I have: HOME = 0.0 HOME_OFFSET = 0.00 Where is it pulling this 8.5202? I can find no reference to any number like that anywhere in the config files. Len - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
