Re: [Emc-users] G-Code files needed
On Sun, Jan 23, 2011 at 3:00 PM, Neil Baylis neil.bay...@gmail.com wrote: On Sun, Jan 23, 2011 at 12:58 PM, Ed Nisley ed.08.nis...@pobox.comwrote: On Sun, 2011-01-23 at 12:23 -0800, Neil Baylis wrote: large or complex g-code files The programs I've been writing for my Along the G-Code Way columns in Digital Machinist aren't all that large, but they do exercise some EMC2-specific language features. The more recent ones will probably be the most useful. They're tucked into the ZIP files at: http://www.digitalmachinist.net/downloads Great, thanks Ed, that's a good resource. Which text editor are you targeting? I'll start with Emacs, because that's what I'm most familiar with. If that goes well, then I will look at vi. If there's demand, I would consider other editors as well, but let's not get ahead of ourselves just yet ;-) Neil This is completed, turned out to be easier than I expected. According to the EMC Wiki, there is already G-Code syntax highlighting for Vim and Gedit, so I don't think I need bother with any other editors. You can see how the Emacs version looks herehttp://pixpopuli.blogspot.com/2011/01/syntax-highlighting-for-cnc-g-code.html . Neil -- Special Offer-- Download ArcSight Logger for FREE (a $49 USD value)! Finally, a world-class log management solution at an even better price-free! Download using promo code Free_Logger_4_Dev2Dev. Offer expires February 28th, so secure your free ArcSight Logger TODAY! http://p.sf.net/sfu/arcsight-sfd2d ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] G-Code files needed
On Mon, Jan 24, 2011 at 8:53 AM, andy pugh bodge...@gmail.com wrote: On 24 January 2011 16:29, Neil Baylis neil.bay...@gmail.com wrote: here http://pixpopuli.blogspot.com/2011/01/syntax-highlighting-for-cnc-g-code.html I have a feeling that XYZABCUVW and F should possibly be treated as commands and highlighted specifically. I am not at all sure how you would do that, though. Does F have a usage other than for feedrate? The code highlights F in that case. Neil -- Special Offer-- Download ArcSight Logger for FREE (a $49 USD value)! Finally, a world-class log management solution at an even better price-free! Download using promo code Free_Logger_4_Dev2Dev. Offer expires February 28th, so secure your free ArcSight Logger TODAY! http://p.sf.net/sfu/arcsight-sfd2d ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] G-Code files needed
On Mon, Jan 24, 2011 at 9:08 AM, Jack Coats j...@coats.org wrote: http://www.cncgadgets.com/cncfree/Aztec-Mayan%20Calendar%20G-code.zip Has a freely available Aztec/Myan type Calendar. A bit over 11MBytes I am told. Is that sufficient? I found it by doing a Google search for aztec calendar g-code and CNCZone where I found this link a is free forum. ... Jack Thanks Jack. This file uncovered some deficiencies with my highlighter, so back to the drawing board. Neil -- Special Offer-- Download ArcSight Logger for FREE (a $49 USD value)! Finally, a world-class log management solution at an even better price-free! Download using promo code Free_Logger_4_Dev2Dev. Offer expires February 28th, so secure your free ArcSight Logger TODAY! http://p.sf.net/sfu/arcsight-sfd2d ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] G-Code files needed
On Mon, Jan 24, 2011 at 9:39 AM, Stephen Wille Padnos spad...@sover.netwrote: I haven't looked at that particular file, but I can point out a few things that were interesting when making the gedit hilighter. (I didn't do it, but I did help out somewhat in the form of IRC conversations with the person who did the actual work) 1) Whitespace is irrelevant to the G-code parser. X12.34 is identical to X1 2. 3 4 in EMC. Yes, I'm thinking about this. I doubt it's worth the effort of parsing numbers that have embedded spaces. Do people actually do this? Spaces after the axis letters should be handled though. 2) G-code is case insensitive. I noticed in the lisp snippet that you have various keywords in all caps and all lower case, but not mixed case, which is also legal in EMC. So any of and, anD, aNd, aND, And, AnD, ANd, and AND are valid G-code. Yes, it's not pretty. I could write a function that would expand a keyword into all possible combinations of upper and lower case, but that's probably going too far. Maybe I should just add a version where the first letter is capitalized. My personal opinion is that if someone writes 'aNd' they probably didn't intend it, so it would be helpful if it showed up in a different color. But I don't know much about how G-Code is normally written and used, so I'm prepared to be corrected. 3) My opinion is that the numbers should be colored differently than the words they go with. so in G0X12.34, G should be one color, the two numbers 0 and 12.34 should be another color, and X, being an axis word, should be a different color. I don't know if the code is capable of doing that, since the screenshot shows codes and numbers as having one style (like g0) This can be fixed, I'm looking at it. Also, I'm going to recognize line numbers separately, and make them light grey so they don't stand out so much, based on the files Jack sent, which have thousands of line numbers and appear very cluttered. This is exactly what syntax highlighting is supposed to help with. -- Special Offer-- Download ArcSight Logger for FREE (a $49 USD value)! Finally, a world-class log management solution at an even better price-free! Download using promo code Free_Logger_4_Dev2Dev. Offer expires February 28th, so secure your free ArcSight Logger TODAY! http://p.sf.net/sfu/arcsight-sfd2d ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] G-Code files needed
On Mon, Jan 24, 2011 at 4:11 PM, doug metzler doug.metz...@gmail.comwrote: I cast my vote for Notepad++ :-) http://notepad-plus-plus.org/ DougM I happen to have a windows box, with notepad++. I know nothing about it's plugin architecture, but I'm sure I can find out. Let me take a look. Neil -- Special Offer-- Download ArcSight Logger for FREE (a $49 USD value)! Finally, a world-class log management solution at an even better price-free! Download using promo code Free_Logger_4_Dev2Dev. Offer expires February 28th, so secure your free ArcSight Logger TODAY! http://p.sf.net/sfu/arcsight-sfd2d ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] G-Code files needed
If anyone has any large or complex g-code files they can share, please let me know. I'm working on syntax highlighting for editing g-code, and need some files to test it with. Thanks, Neil -- Special Offer-- Download ArcSight Logger for FREE (a $49 USD value)! Finally, a world-class log management solution at an even better price-free! Download using promo code Free_Logger_4_Dev2Dev. Offer expires February 28th, so secure your free ArcSight Logger TODAY! http://p.sf.net/sfu/arcsight-sfd2d ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] G-Code files needed
On Sun, Jan 23, 2011 at 12:58 PM, Ed Nisley ed.08.nis...@pobox.com wrote: On Sun, 2011-01-23 at 12:23 -0800, Neil Baylis wrote: large or complex g-code files The programs I've been writing for my Along the G-Code Way columns in Digital Machinist aren't all that large, but they do exercise some EMC2-specific language features. The more recent ones will probably be the most useful. They're tucked into the ZIP files at: http://www.digitalmachinist.net/downloads Great, thanks Ed, that's a good resource. Which text editor are you targeting? I'll start with Emacs, because that's what I'm most familiar with. If that goes well, then I will look at vi. If there's demand, I would consider other editors as well, but let's not get ahead of ourselves just yet ;-) Neil -- Special Offer-- Download ArcSight Logger for FREE (a $49 USD value)! Finally, a world-class log management solution at an even better price-free! Download using promo code Free_Logger_4_Dev2Dev. Offer expires February 28th, so secure your free ArcSight Logger TODAY! http://p.sf.net/sfu/arcsight-sfd2d ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] FCM8201,2 and IRAMS
I don't think you can use the Fairchild part to drive a servo motor with sinusoidal commutation, because it uses a PLL to compute the phase angle. This implies they expect it to be continually running, and not changing direction. Neil On Tue, Jan 18, 2011 at 7:22 PM, Jon Elson el...@pico-systems.com wrote: Kirk Wallace wrote: Has anyone used one of these: http://www.fairchildsemi.com/ds/FC/FCM8201.pdf OH MY! Under $4 at Digi-Key. This looks like it might make a fairly simple way to drive a motor in sinusoidal mode, with a PWM signal providing a torque command. Quite a FIND, thanks! On the other hand, the data sheet is REALLY sparse about how the thing really works in stand alone mode, how the PWM input really controls the output pulse widths, etc. I wonder if there is another document that details how the chip really works? Jon -- Protect Your Site and Customers from Malware Attacks Learn about various malware tactics and how to avoid them. Understand malware threats, the impact they can have on your business, and how you can protect your company and customers by using code signing. http://p.sf.net/sfu/oracle-sfdevnl ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- http://www.pixpopuli.com -- Protect Your Site and Customers from Malware Attacks Learn about various malware tactics and how to avoid them. Understand malware threats, the impact they can have on your business, and how you can protect your company and customers by using code signing. http://p.sf.net/sfu/oracle-sfdevnl ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] OT - email recommendations
I don't think there's a better client than Thunderbird for Linux. I used it at the job I just got laid off from and it was great. But at home, I just use gmail because it makes so many things easy. I read Usenet via google groups, which is suboptimal but I don't spend much time reading usenet any more because of too much spam. (Of course, the spam could be because I read it via google groups, so vicious circle there..) Sorry there's not better news. Neil On Sat, Jan 15, 2011 at 10:10 PM, Jon Elson el...@pico-systems.com wrote: Well, this is quite off-topic, but I just went through HELL with my Thunderbird email client. It has been acting flaky for a while, with about 2-minute hangups every now and then. When it does this, the CPU utilization goes to 100% for the duration. Now, suddenly, these delays are 8 minutes long! This is with Thunderbird 2.0.0.22 on a 1.7 GHz pentium 4 just updated to 2 GB of memory. I tried to update to Thunderbird 3.1.1, and the delays with that are 67 minutes long! I have a HUGE number of emails stored in many folders going back to 1997, and also have newsgroup folders for such as rec.crafts.metalworking. My newsgroup service has everything going back to 2003, so there are 600,000 message headers for the R.C.M. group alone. I think Thunderbird is constantly indexing this stuff for some reason, although I have tried to turn off EVERYTHING possible that I don't need. So, what do others use for email and newsgroups on Linux systems? I'd need something that could import the mail files from Thunderbird. Thanks, Jon -- Protect Your Site and Customers from Malware Attacks Learn about various malware tactics and how to avoid them. Understand malware threats, the impact they can have on your business, and how you can protect your company and customers by using code signing. http://p.sf.net/sfu/oracle-sfdevnl ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- http://www.pixpopuli.com -- Protect Your Site and Customers from Malware Attacks Learn about various malware tactics and how to avoid them. Understand malware threats, the impact they can have on your business, and how you can protect your company and customers by using code signing. http://p.sf.net/sfu/oracle-sfdevnl ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] D510MO + Mesa 7I43
Make them. The materials are relatively inexpensive and they are really easy to make. You don't need a special tool, a vise or even careful application of pliers are enough. That way you can make them exactly the length you need. I use my drill press, without a drill in the chuck, to press down and crimp the connectors. Works great. If the connector is long, I put a scrap of metal on top for the press to bear down on and distribute the load. When I bought this cheap-ass Chinese drill press, I assumed I would be using it to drill holes. Turns out it's not so good at that.. especially if you want the holes to be round. I'm glad I finally found something it's good at. Neil -- Forrester recently released a report on the Return on Investment (ROI) of Google Apps. They found a 300% ROI, 38%-56% cost savings, and break-even within 7 months. Over 3 million businesses have gone Google with Google Apps: an online email calendar, and document program that's accessible from your browser. Read the Forrester report: http://p.sf.net/sfu/googleapps-sfnew ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] D510MO + Mesa 7I43
On Tue, Dec 21, 2010 at 8:18 AM, Tom Easterday tom-...@bgp.nu wrote: For those that haven't done it. It is quite easy ... snip 9) Some shells come with a strain relief piece. You bend the cable around under it and it clicks in to provide the strain relief http://bgp.nu/~tom/pub/ribbon/IMG_2541.jpg Note, that if your connector has this type of strain relief, it's usually better to have the cable enter from the 'wrong' direction in step 5. Neil -- Forrester recently released a report on the Return on Investment (ROI) of Google Apps. They found a 300% ROI, 38%-56% cost savings, and break-even within 7 months. Over 3 million businesses have gone Google with Google Apps: an online email calendar, and document program that's accessible from your browser. Read the Forrester report: http://p.sf.net/sfu/googleapps-sfnew ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] inches or metric
Although they recommend against it, you can actually edit the grub.cfg file just as you previously edited the menu.lst file. If you subsequently do update-grub, your changes will be overwritten. Neil On Sun, Dec 19, 2010 at 10:43 PM, Erik Christiansen dva...@internode.on.net wrote: On Sat, Dec 18, 2010 at 04:49:35PM -0500, Dave Christman wrote: On 12/18/2010 4:05 PM, andy pugh wrote: On 18 December 2010 20:55, Kirk Wallacekwall...@wallacecompany.com wrote: A common problem with the install script is that the original Linux will boot instead of real time Linux. It should be possible to see which kernel has booted with uname -r If you don't see -rtai at the end of the kernel version then you probably need to beat grub up a bit. The response to uname -r from the terminal window is 2.6.32-26 generic. What is a grub, and how do I beat it up? To make it more interesting, recent ubuntu versions have switched from grub to grub2. Editing the config to change the default kernel image has changed, as has the name and location of the input file. If you're on lucid, then you should have grub2. Try 'man grub2', as a quick test. Also 'ls /etc/default/grub'. With grub2 confirmed, the method is to edit /etc/default/grub , then run update-grub, which updates /boot/grub/grub.cfg There are more details here than you'd perhaps like: https://help.ubuntu.com/community/Grub2 Cutting to the chase, there's HOWTO guff here: https://help.ubuntu.com/community/Grub2#/etc/default/grub under the heading Configuring GRUB 2, and there's even mention of a GUI way to do it, if you're into that sort of thing. OR: If you have the older grub, then there's 98 pages of manual here: www.gnu.org/software/grub/manual/grub.pdf (ISTR that the config file had another name (menu.lst?), and could be edited directly. It's a while since I've used it, so details are fading from DRAM.) Hopefully that get's you well under way. (It's a lot easier than it looks.) Erik -- Those who live by the GUI, die by the GUI - Duncan Roe, on luv-main ML. -- Lotusphere 2011 Register now for Lotusphere 2011 and learn how to connect the dots, take your collaborative environment to the next level, and enter the era of Social Business. http://p.sf.net/sfu/lotusphere-d2d ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- http://www.pixpopuli.com -- Lotusphere 2011 Register now for Lotusphere 2011 and learn how to connect the dots, take your collaborative environment to the next level, and enter the era of Social Business. http://p.sf.net/sfu/lotusphere-d2d ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Laser control
synchronized with the motion. yes, exactly this is why in my gluing machine I use M62-M65 to control the glue valve. I think here the problem is similar when you need to turn on/off the laser while moving. see : http://linuxcnc.org/docs/html/gcode_main.html#sec:M62-to-M65 If I was to program M64 immediately followed by M65, how long would the output be on for? Neil -- Oracle to DB2 Conversion Guide: Learn learn about native support for PL/SQL, new data types, scalar functions, improved concurrency, built-in packages, OCI, SQL*Plus, data movement tools, best practices and more. http://p.sf.net/sfu/oracle-sfdev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Laser control
So presumably, I could also use M67 or M68 to control the laser power as well. Let me see how to configure my hal code for that. Thanks, Neil -- Oracle to DB2 Conversion Guide: Learn learn about native support for PL/SQL, new data types, scalar functions, improved concurrency, built-in packages, OCI, SQL*Plus, data movement tools, best practices and more. http://p.sf.net/sfu/oracle-sfdev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Expansion of EMC
On Fri, Dec 10, 2010 at 10:57 AM, Don Stanley dstanley1...@gmail.comwrote: To All Responders; snip... Remember you can't sell EMC, but you can sell your services, your documentation and your electrical/electronic and mechanical products. Why can't you sell EMC? Neil -- Oracle to DB2 Conversion Guide: Learn learn about native support for PL/SQL, new data types, scalar functions, improved concurrency, built-in packages, OCI, SQL*Plus, data movement tools, best practices and more. http://p.sf.net/sfu/oracle-sfdev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Live CD Parport mode 4 problem
I have a multi-boot setup, so I can boot my original 8.04 liveCD installation, or my new 10.04 version. With the 10.04 version, I'm getting a complaint at startup that the parallel port doesn't support mode 4. I don't see this on the 8.04 version. It's the same computer, with the same .ini file, connected to the same external hardware. As yet I don't know if this causes any problem in operation. I'll know that within the next couple of days. Is this something new that was added? Neil -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Live CD Parport mode 4 problem
OK, thanks Jeff. I was off list for a while, so I missed those earlier discussions. I'll check them out, and see if I can get it sorted. Neil On Thu, Dec 9, 2010 at 9:13 AM, Jeff Epler jep...@unpythonic.net wrote: Yes, the parport stuff has changed between emc2.3 and emc2.4 and there are also differences between an 8.04 installation and a 10.04 installation. In emc 2.3 and earlier, emc's parport drivers would not cooperate with the linux parport drivers, so the linux driver was disabled by default. In emc 2.4, emc gained the ability to cooperate with linux's parport driver. The anticipated benefit was primarily to make it easy to specify pci parports, because you can call them parport 1, 2 and so on instead of 0xe800 or a raw port address. so systems that are initially installed with 2.4 leave linux parports enabled ny default (but 2.3 to 2.4 upgrades don't, I think) We also hoped for better detection of epp-supporting parports, but this has proven to be untrue. See the long d510mo threads for more on this. the mode 4 message is related to this--linux thinks your port is not epp-capable. in the latest release, 2.4.5, I think the problems working in cooperation with linux are solved, but if not, your final option is to disable theb linux parport driver by editing the file /etc/modprobe.d/emc2 or emc2.conf and removing a #. reboot after doing this, and linux will get out of the way of emc's use of the parport. (of this does turn out to be necessary, let us know--we may be able to find a solution, like we did for d510mo) Jeff -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- http://www.pixpopuli.com -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Can't update some packages
After the software update I just performed, there were 3 packages that failed to update: libssl0.9.8 0.9.8k-7ubuntu8 -- 0.9.8k-7ubuntu8.4 openssl0.9.8k-7ubuntu8 - 0.9.8k-7ubuntu8.4 linux-libc-dev 2.6.32-24.39 -- 2.6.32-26.47 When it tries to fetch the new version, the package can't be found. They all have multiple dependencies, so I'm reluctant to try removing and reinstalling them. Anyone else seen such a problem? This is probably the first update I've done since installing from the live CD. Oh.. wait a minute: am I still supposed to avoid taking updates from Ubuntu? I just told it to update everything that was out of date, which was about 140 packages. I seem to remember at some point there was guidance to the effect that EMC installations should not take Ubuntu updates. Neil -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Live CD Parport mode 4 problem - Solved
It's the parallel port of the motherboard of a Dell Optiplex GX280, FYI. On Thu, Dec 9, 2010 at 4:58 PM, Jeff Epler jep...@unpythonic.net wrote: you didn't say what epp io board you're using, but getting emc to come up generally means there's been positive comminication between pc and bosrd using epp, so you're probably in the clear. jeff -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- http://www.pixpopuli.com -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Laser control
What's the best strategy for controlling a laser? My machine uses 2 axes to move the laser optic to the right position. I've got this much working satisfactorily. Now I need to control the laser power. I was planning to use a 3rd axis for this, let's call it Z. My plan was to use the sign of the Z position to control the laser-enable signal, and the magnitude of the Z position to control the laser power. But maybe this is a stupid idea... I don't know. For example, let's say I wanted to cut/burn a dashed line. It would be preferable if the optic could keep moving at a constant speed, and the beam would just turn on and off at the appropriate positions. Would I be able to do that if the beam was controlled by the Z axis position? This thing moves pretty fast.. maybe 25 to 30 inches per second, and I'm not sure if I'll be able to turn the beam on and off with enough precision. Later, I'll need to compensate for the linear velocity of the optic, so that it burns with less power when it is moving slowly. This will require computing the real-time velocity vector in x-y space and using that to control the laser power. Neil -- What happens now with your Lotus Notes apps - do you make another costly upgrade, or settle for being marooned without product support? Time to move off Lotus Notes and onto the cloud with Force.com, apps are easier to build, use, and manage than apps on traditional platforms. Sign up for the Lotus Notes Migration Kit to learn more. http://p.sf.net/sfu/salesforce-d2d ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Any advantage to using a lightweight window manager?
I'm about to install EMC on another machine (Dell Optiplex) and was wondering if anyone has found benefits from installing a lightweight window manager (e.g. xfce, lxde, or even twm) instead of Gnome? I've used this machine successfully for EMC before, so I know it works. Also, is there any benefit to be had from installing a lightweight distro (e.g. Arch) rather than Ubuntu? (Yes, I understand that if I don't use the approved Ubuntu/Emc distro, I'll have to integrate RTAI myself etc.) Neil -- Increase Visibility of Your 3D Game App Earn a Chance To Win $500! Tap into the largest installed PC base get more eyes on your game by optimizing for Intel(R) Graphics Technology. Get started today with the Intel(R) Software Partner Program. Five $500 cash prizes are up for grabs. http://p.sf.net/sfu/intelisp-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Compatibility with small touchscreens?
Just wanted to mention an alternative, since you have an iPhone. There's a great app available for iPhone called touchOSC. It was built for using the iPhone as a controller for musical devices, such as synthesizers, drum machines, samplers, etc. It comes with a bunch of inbuilt control panels, as well as the ability to define your own control panels. I have a plan to use it to control my laser machine, which runs with EMC. I have some prototype code to receive the UI events from touchOSC, but have not integrated anything into EMC yet. There's a public domain C library that is widely used for sending and receiving OSC protocol, called liblo and that what I'm using initially. Ultimately, my laser application will be written in Common Lisp, so I will probably abandon liblo in favor of a lisp library. Anyway, for controlling music devices, it works very well. I have no doubt that it will also work for some EMC systems, depending on the particular needs. Neil On Mon, Aug 23, 2010 at 12:26 PM, Colin Kingsbury ckingsb...@gmail.comwrote: I'm looking at trying to build a homebrew version of a dedicated controller with an integrated keyboard, MPG, and touchscreen. On the touchscreens, I've been looking at some of the 7-8 units originally made for in-dash DVD players, Lilliput seems to be a common name for the hardware and I've read about touchkit as being the main driver for using these 4/5-wire resistive-interface screens with Ubuntu. There seems to be a choice of serial and USB interfaces. Before I go out and buy a bunch of hardware that doesn't play well, does anyone have any words of wisdom on what I should or shouldn't look at? For reference, this is the sort of unit I'm thinking about: http://cgi.ebay.com/Lilliput-EBY701-NP-C-T-7-VGA-Touch-Screen-1-Year-Warr-/300444259217?pt=LH_DefaultDomain_0 * And yes, I realize a 7 screen will have lower resolution than my iPhone 4... I'm looking to build a panel with illuminated modal switches and generally see about moving some stuff off the screen. -- Sell apps to millions through the Intel(R) Atom(Tm) Developer Program Be part of this innovative community and reach millions of netbook users worldwide. Take advantage of special opportunities to increase revenue and speed time-to-market. Join now, and jumpstart your future. http://p.sf.net/sfu/intel-atom-d2d ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- http://www.pixpopuli.com -- Sell apps to millions through the Intel(R) Atom(Tm) Developer Program Be part of this innovative community and reach millions of netbook users worldwide. Take advantage of special opportunities to increase revenue and speed time-to-market. Join now, and jumpstart your future. http://p.sf.net/sfu/intel-atom-d2d ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] an exciting new setup: generated tach signal
Chris, would you care to hazard a guess at how much phase shift you see from the 7i48 input to the velocity input at the servo amp? Neil On Tue, Aug 10, 2010 at 7:19 PM, Chris Radek ch...@timeguy.com wrote: Hi all, I have a VMC with low inertia servos and 25 amp 270 volt velocity mode servo amps. It has tachometers and 1/25400 inch (micron) resolution rotary encoders on the motors. I have been struggling with a bad tachometer on Y for a while now - it would come and go - and when people started talking again about generating tach signals for retrofitting Fanuc setups that don't have real tachometers, I got interested. I was out of DAC outputs, so I got a second servo interface board (7i48, which is a Mesa product that has six DACs and six differential encoder inputs, and is newly supported in EMC2/git-master). The hostmot2 Mesa driver has a high quality encoder velocity output that it generates based on high resolution timestamps on encoder edges. In HAL, I hooked this velocity output directly to a new DAC and set the DAC scaling so that rapid speed will give an output around 9 volts. I wired the DAC output directly to the servo amp in place of the tachometer. This voltage is a lot lower than the real tachometer generates, but the servo amp has a gain control and it was very easy to set the amp accordingly. I'm happy to report that the motion on Y is smoother than I have ever heard it. This machine rapids (I have it set conservatively) at 7.5 inch/sec and 30 inch/sec2 acceleration. Adjusting the tunings (amp and EMC) just a bit, I was quickly able to get following errors within about 10 encoder counts (0.0005 inches) during accelerations to rapid speed, and virtually nil (a count or two) during cruises/cuts. I think this is awesome and send thanks to Peter W for his cool products and hostmot2 work and Seb K for his hostmot2 driver work. I have every reason to believe that machines with these generated velocity signals and missing tachs are not a problem for EMC2 + Mesa. Chris -- This SF.net email is sponsored by Make an app they can't live without Enter the BlackBerry Developer Challenge http://p.sf.net/sfu/RIM-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- http://www.pixpopuli.com -- This SF.net email is sponsored by Make an app they can't live without Enter the BlackBerry Developer Challenge http://p.sf.net/sfu/RIM-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Quieting The Variable Frequency Drive (VFD) Noise. How To.
Why would they call that a reactor, rather than an inductor? Neil On Tue, Jul 27, 2010 at 7:46 PM, Stuart Stevenson stus...@gmail.com wrote: I have seen reactors used to quiet a vfd. A reactor is merely a coil of wire. On Tue, Jul 27, 2010 at 3:57 PM, Andy Pugh a...@andypugh.fsnet.co.uk wrote: On 27 July 2010 21:43, Don Stanley dstanley1...@gmail.com wrote: The solution was a 5% KDR filter from TCI in Milwaukee Wi in the VFD output. I suspect some ferrite beads on the output lines helped with my rather troublesome VFD noise problem. Though I also added an input filter and shielded power cables at the same time, so don't have the data to deconvolve the various effects. The input filter was initially troublesome, tripping the ELCB in the main supply. The solution I found was to power the VFD through a zero-crossing SSR controlled by EMC2. As the mains voltage is always zero at switch-on there is no current spike into the filter caps, and no tripping of the breaker. So far it has been a 100% success for about a year. -- atp -- The Palm PDK Hot Apps Program offers developers who use the Plug-In Development Kit to bring their C/C++ apps to Palm for a share of $1 Million in cash or HP Products. Visit us here for more details: http://ad.doubleclick.net/clk;226879339;13503038;l? http://clk.atdmt.com/CRS/go/247765532/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- dos centavos -- The Palm PDK Hot Apps Program offers developers who use the Plug-In Development Kit to bring their C/C++ apps to Palm for a share of $1 Million in cash or HP Products. Visit us here for more details: http://ad.doubleclick.net/clk;226879339;13503038;l? http://clk.atdmt.com/CRS/go/247765532/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- http://www.pixpopuli.com -- The Palm PDK Hot Apps Program offers developers who use the Plug-In Development Kit to bring their C/C++ apps to Palm for a share of $1 Million in cash or HP Products. Visit us here for more details: http://p.sf.net/sfu/dev2dev-palm ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] How to create custom kinematics module?
If atan2() returns a negative result, add 360 degrees (or the equivalent in
radians) to the result.
Neil
2010/6/11 Viesturs Lācis viesturs.la...@gmail.com
2010/6/11 Przemek Klosowski przemek.klosow...@gmail.com:
1 #include rtapi_math.h
2 #include kinematics.h /* these decls */
3
4 const double head_offset = 200;
5
6 PmCartesian old;
7
8 in t kinematicsForward(const double *joints,
9 EmcPose * pos,
10const KINEMATICS_FORWARD_FLAGS * fflags,
11KINEMATICS_INVERSE_FLAGS * iflags)
12 {
13 double xy_tan = atan2(pos-tran.y - old.y,pos-tran.x - old.x);
14 pos-tran.x = joints[0] - head_offset * sin(joints[5]);
15 pos-tran.y = joints[2] + head_offset * sin(joints[4]);
16 pos-tran.z = joints[3] + cos(joints[4]) * cos(joints[5]) *
head_offset;
17 pos-a = asin(sin(joints[4]) / cos(xy_tan));
18 if xy_tan = 90 + (180 * i), where i is not 0, but is 1, 2, 3, etc
or -1, -2, -3, -4 etc
19 then pos-a = asin(sin(joints[5]) / sin(xy_tan));
OK, but what is 'i'? or are you saying that the test is for
(xy_tan-90) being an integer multiple of 180? without understanding
your geometry, this doesn't make immediate sense to me...
If You recall trignometry from elementary school, tangent values (just
like for sin and cos functions) repeat every 180 degrees. For example
tangent of 45 degrees is 1. Just like it is for 225, 405 etc. General
way to write it is tan(45 + 180*i) = 1, where i is integer - 1, 2, 3,
4, 5 etc.
Actually I seem to have made this bit more complicated as necessary -
for me xy_tan should be in range from 0 to 359 (including both of
these numbers), so instead of writing 90 + (180 * i), I could have
said 90 or 270.
By the way, how should I limit the xy_tan in the mentioned range from 0 to
359?
For example, for deltaX = 1, deltaY = -1 in Excel for atan2 function I
get value -45 degrees, while I would like it to be 315. This way each
position for xy_would be described with only one possible value
instead of several. Like in the given example, it can be -45 or +315
etc.
because you whip the value of pos-a betweenthe values based on joints[5]
and
joints[4]--normally I would expect the pos values to be continuous.
Just to make sure that I understand You correctly - do You see the
probpos-a = asin(sin(joints[5]) / sin(xy_tan));lem in the fact that I
want to switch from this formula pos-a = asin(sin(joints[4]) /
cos(xy_tan)); to this formula pos-a = asin(sin(joints[5]) /
sin(xy_tan));?
If this is the case, then how should I treat the situation that for
xy_tan values 90 and 270 the cos(xy_tan) = 0 and dividing by zero is
error. How to solve that? In those situations the nozzle will be
moving along Y axis and all the tilt should be in joint[5], joint[4]
should be in its zero point. So in this situation joint[4] = 0, but
pos-a must not be zero. The same situation is for xy_tan values 0 and
180 - joint [5] should be in its zero point and all the tilt should be
in joint[4].
Are there any suggestions?
Just to remind - I am trying to implement kinematics, where cutting
head with A and B rotary axis (rotating around X and Y axis
respectively) are behaving as a cutting head with A and C rotary axis
(rotating around X and Z axis respectively) where A angle (amount of
the tilt of the head) is given in g-code, but C is calculated as a
tangent of the head movement, so that direction of tilt is ALWAYS
perpendicular to direction of movement.
It seems to me that I have managed implementation of calculating the
tangent, and that the struggle is with transforming these A-C style
kinematics into A-B style cutting head.
2010/6/11 yann jautard brico...@free.fr:
Viesturs Lācis wrote:
1) What would correct syntax for line 18 and 19 look like?
could be something like :
18 for (int i=1; i limit; i++){
19 if (xy_tan == (90+(180*i)) || xy_tan == (90-(180*i)))
19 pos-a = asin(sin(joints[5]) / sin(xy_tan));
20 }
where limit is the maximal value I can take.
this code is not optimised, because for large limit value, il will
take a long time to iterate. But should work right for a limit value of
5 or 10.
Thank You for the code!, I will try it.
with best regards,
Viesturs
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[Emc-users] Detecting limits without switches
Many printers plotters do not use limit switches. Instead, they move the print head slowly towards the end stop until the motor stalls, and then back off from that point a certain distance and that's the home position or soft limit. What, roughly, do I need to do with EMC to get this behavior? Neil -- ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Detecting limits without switches
I'm using servos, not steppers. I have real position feedback. Neil On Sun, Jun 6, 2010 at 9:28 AM, Gene Heskett gene.hesk...@gmail.com wrote: On Sunday 06 June 2010, Neil Baylis wrote: Many printers plotters do not use limit switches. Instead, they move the print head slowly towards the end stop until the motor stalls, and then back off from that point a certain distance and that's the home position or soft limit. What, roughly, do I need to do with EMC to get this behavior? That generally does work well at all. The reason is that when it jams, it jams at the steppers max torque, and it takes a random number of steps in the other direction, and even some hand help at times, to break it loose again. Neil -- ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- 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) Old soldiers never die. Young ones do. -- ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- http://www.pixpopuli.com -- ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Detecting limits without switches
On Sun, Jun 6, 2010 at 6:44 PM, Peter C. Wallace p...@mesanet.com wrote: Umm, not any more, all the inkjets I've seen are really cheap servo systems (battery toy type motors and a linear mylar strip encoder) Yes, they really cut the cost out of these things. The motors generally don't have ball bearings, just bushings. The worst kind of motor to use with continuous radial loads, but there ya go, that's what they use. One printer I recently gutted (Canon, I think) had no feedback at all. There was just a simple DC motor to drive the carriage. They were depending on the motor moving at constant speed with constant voltage, I guess. No limit switches, either. Perhaps they monitor motor current to know when it's at the limit. I think homing against a stop is OK with a torque controlled system (move slow and limit torque when homing) If your encoder has an index then this would give an accurate home. Actually, I hadn't thought of that. My encoder does have an index, but I don't have torque control. The drive does have a current limit, so maybe I could use that. Of course without limit switches, theres nothing to stop such a system from slamming into the stop at full torque with drive or software error.. Yes. I was planning to not have drive or software errors ;-) -- ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Detecting limits without switches
Dave, do they use the optical strip transitions to time the firing of the ink droplets, or is it only used to control the print head? On Sun, Jun 6, 2010 at 7:55 PM, Dave Caroline dave.thearchiv...@gmail.comwrote: I was the coder for a version of printer based on the Canon A1210 and later the PJ1080 they were very early ink jets from the mid 1980's, they had servo drive and optical strip and we drove them as fast as possible but were limited by the possibility of burning out the motor. The optical strip had had two images the one for the servo loop(regular bars) and the other for home at each end. Just had to look at my old code to remind myself. Bugs did have the unfortunate bang when ther head hit the end stop the anti copy code I put in messed with the timing and a large bang was the result, it kept the ripoff merchants at bay. Dave Caroline On Mon, Jun 7, 2010 at 3:10 AM, Neil Baylis neil.bay...@gmail.com wrote: On Sun, Jun 6, 2010 at 6:44 PM, Peter C. Wallace p...@mesanet.com wrote: Umm, not any more, all the inkjets I've seen are really cheap servo systems (battery toy type motors and a linear mylar strip encoder) Yes, they really cut the cost out of these things. The motors generally don't have ball bearings, just bushings. The worst kind of motor to use with continuous radial loads, but there ya go, that's what they use. One printer I recently gutted (Canon, I think) had no feedback at all. There was just a simple DC motor to drive the carriage. They were depending on the motor moving at constant speed with constant voltage, I guess. No limit switches, either. Perhaps they monitor motor current to know when it's at the limit. I think homing against a stop is OK with a torque controlled system (move slow and limit torque when homing) If your encoder has an index then this would give an accurate home. Actually, I hadn't thought of that. My encoder does have an index, but I don't have torque control. The drive does have a current limit, so maybe I could use that. Of course without limit switches, theres nothing to stop such a system from slamming into the stop at full torque with drive or software error.. Yes. I was planning to not have drive or software errors ;-) -- ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- http://www.pixpopuli.com -- ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Specs for a PC to run EMC
I'm using a Dell Optiplex GX280 both with integrated graphics and with an add-on graphics card. There's a latency hit a certain time after it boots up, but after that it's fine. I bought a couple of these machines for $45 each from a university. Neil On Sun, May 23, 2010 at 9:35 PM, Wes Johnson wesley.a.john...@gmail.comwrote: I first tried a Medion with a Pentium 4HT 2.4 GHz, NVIDIA GeForce 8000 series graphics. Next I tried an older Dell Optiplex GX270 P4 with integrated graphics. I disabled SMI on both. I get the same problem. There is an RTAI error shortly after starting EMC. On the Dell you can actually here the spindle RPM drop every 30 seconds or so when it has a problem. -Wes -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- http://www.pixpopuli.com -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] HELP?! Problems with a Reinstall of EMC 2.3 No OpenGL for Axis?
There's also Matrox. On Mon, May 24, 2010 at 2:27 AM, Mark Wendt mark.we...@nrl.navy.mil wrote: On 05/23/2010 06:18 PM, Dave wrote: From what I have gathered 10.4 suffers from similar video problems that 9.10 did. One issue is that 9.10 and apparently also 10.4 oftentimes can't access the video screen correctly to determine the screens capabilities. If you use the Vesa driver and you know your screen resolution, you can force the Vesa driver to set the video which apparently gets rid of some of the screen flickering issues etc. Another user, and then I found that the D510 intel board with the onboard intel GMA3150 video had an issue with 9.10 so I wrote up a work around for the D510 board. If you are going to use the Vesa driver perhaps this would be some help. Go to this page... http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?EMC_Ubuntu91 And scroll down to the bottom where it says: *Note Relating to cannot load the i810 module error when first booting compiled Kernel:* The xorg.conf.failsafe file is setup to use the Vesa driver.. so this procedure just sets things up so the vesa driver is used and then describes how to set the config file so it is optimal for the monitor you have connected. This doesn't fix any Linux issue, it is really a work around. Dave Ah, figures. I mentioned to Gene in the previous email that I didn't have any problems in 8.04 (didn't try the 9.10 version so I didn't notice the video problems there). Other than ATI and NVidia, are there other decent video cards, or have they pretty much taken over the field? Mark -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- http://www.pixpopuli.com -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Tuning questions, Axis
On Thu, May 20, 2010 at 8:08 PM, Jon Elson el...@pico-systems.com wrote: 4) None of the tabs in the Calibration tool shows FF2 as a tunable parameter. To tune FF2, I shut down Axis, tweak the INI file manually, and then restart Axis. Am I missing something? Either there is no FF2 parameter listed in your ini file, or the stanza in univpwm_servo.hal is missing the line that brings over that parameter. If that line (which would be setp pid.1.FF2 [AXIS_1]FF2 in this case) was missing, then putting the value in the ini file would not have any effect, as it is not getting loaded into the PID component, anyway. Thanks Jon, and others who responded. This was the problem. I'm seeing FF2 now in the calibration tool, and it's having a huge effect. I have to set it to 0.01, but it does reduce the error noticeably. I also created a small g-code program that moves to a fixed point, and then back to 0 when I press the play button. This gives me nice repeatable graphs with Halscope. Neil -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Tuning questions, Axis
I understand. I don't use the write to file mechanism. Rather, if I like the settings, I click 'OK' in the calibration tool, and then manually edit the settings in the .ini file so they will get loaded next time I start up. Neil On Fri, May 21, 2010 at 9:13 AM, Jon Elson el...@pico-systems.com wrote: Jon Elson wrote: If you are using the machine/calibration GUI that changes the PID/FFx/deadband etc. parameters, then it is constantly updating those settings every time you OK them. If you want to revert to the original settings completely, then I think you need to restart EMC. Hmmm, I should clarify. The settings are written to the live EMC, but only when you click write to file are they written to the .ini file. If you don't do write to file then an EMC restart will revert to the old settings. If you DO a write to file then the old settings are over-written. Jon -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- http://www.pixpopuli.com -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Tuning questions, Axis
I'm currently tining a small fast linear axis. It uses a DC servo, timing belt, and linear encoder. I'm using Axis. This is the Y axis of my machine. It's basically working, but I have a few questions: 1) Is it possible to make Axis re-load the ini file, or do I need to exit and re-start Axis to do this? 2) I'm repeatedly doing the following MDI commands: g0y0 g0y8 while I take a plot with Halscope to monitor the results. Is it possible to assign these commands to function keys on the keyboard, or buttons on the GUI, so they are more convenient? 3) The Calibration tool shows three tabs, one for each axis. For some reason, the 3 tabs do not show the same tuning variables for each axis. What is it that controls which tuning variables are shown in the Calibration tool tabs? 4) None of the tabs in the Calibration tool shows FF2 as a tunable parameter. To tune FF2, I shut down Axis, tweak the INI file manually, and then restart Axis. Am I missing something? 5) FF2 seems to have no effect. I added it in the INI file immediately after FF1. I've heard that it's very sensitive, and tried values from 0 up to 0.5, but on Halscope the error plot looks identical. As a reference point, my FF1 value is 0.25. My servo amp is a voltage amp (PWM input LMD18200 H Bridge), driving a small DC servo. Thanks, Neil -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Tuning questions, Axis
On Thu, May 20, 2010 at 11:48 AM, Chris Radek ch...@timeguy.com wrote: On Thu, May 20, 2010 at 09:32:37AM -0700, Neil Baylis wrote: 5) FF2 seems to have no effect. I added it in the INI file immediately after FF1. You probably didn't hook it up to pid in your hal file. I certainly did not. I didn't realize this was necessary, because I didn't have to do it for FF1. Is this also what controls whether the item is displayed in the calibration tool? (Can't test right now, because I'm working at my other job. I.e., the one where they pay me.) Neil -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Spirograph Curves
On Tue, May 18, 2010 at 5:48 AM, craig cr...@facework.com wrote: Could you post the information on Spirograph curves again. I think I could use this kind of decoration. Ah,don't be so hard on yourself ;-) Neil -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] RELEASED: emc 2.4.0
On Mon, May 10, 2010 at 7:18 PM, Jon Elson el...@pico-systems.com wrote: Neil Baylis wrote: I rebooted again (this is the third time since I did the upgrade to 2.4) and checked lsmod. Still the same: no parport_pc, but parport is loaded with dependencies lp and ppdev. I tried emc again, and now it works. While emc is running, lsmod indicates the following: I might power down and reboot just to make sure it comes up right EVERY time. This sounds suspicious. (and, just in case you didn't know, there is a big difference between logging off and rebooting the kernel.) Jon I rebooted and cycled power a few times, and it kept working reliably. I commented out the line in /etc/modprobe.d/emc2, rebooted, and it failed as before. Then I uncommented the line, rebooted, and it worked first time again. I have to assume I somehow got confused when I edited this file the first time, and thought I had rebooted when I hadn't. So, the problem is just that I needed to edit that modprobe file. Is there a release note or something that would tell me I need to do this? Looking at the debug output, it seemed there was something wrong with the parallel port, but it didn't lead me to edit that file. Neil -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] RELEASED: emc 2.4.0
On Tue, May 11, 2010 at 10:18 AM, Jon Elson el...@pico-systems.com wrote: Well, this is just RT-linux arcana, and either we will find a good fix for it, or have to put it prominently in the Wiki. Since you are apparently the first person to hit this, there won't be a release note about it until we know a little more about the exact conditions where this occurs. OK. I can make it happen any time, so if you want me to test anything, let me know. Neil -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] RELEASED: emc 2.4.0
I ran into an error after the upgrade. My system is the EMC2 Hardy live CD install, and I'm using the config files from pico systems website for the universal PWM controller. The files are at: http://pico-systems.com/codes/univpwm/ The only change I made was to edit the ini file and remove the line referring to the nml file. Print file information: RUN_IN_PLACE=no EMC2_DIR= EMC2_BIN_DIR=/usr/bin EMC2_TCL_DIR=/usr/share/emc/tcl EMC2_SCRIPT_DIR= EMC2_RTLIB_DIR=/usr/realtime-2.6.24-16-rtai/modules/emc2 EMC2_CONFIG_DIR= EMC2_LANG_DIR=/usr/share/emc/tcl/msgs INIVAR=inivar HALCMD=halcmd EMC2_EMCSH=/usr/bin/wish8.4 EMC2 - 2.4.0 Machine configuration directory is '/home/neil/emc2/configs/pico-stock' Machine configuration file is 'univpwm.ini' INIFILE=/home/neil/emc2/configs/pico-stock/univpwm.ini PARAMETER_FILE=univpwm.var EMCMOT=motmod EMCIO=io TASK=milltask HALUI= DISPLAY=tkemc NML_FILE= Starting EMC2... Starting EMC2 server program: emcsvr Loading Real Time OS, RTAPI, and HAL_LIB modules Starting EMC2 IO program: io Shutting down and cleaning up EMC2... Killing task emcsvr, PID=5619 Removing HAL_LIB, RTAPI, and Real Time OS modules Removing NML shared memory segments Cleanup done Debug file information: Can not find -sec EMC -var NML_FILE -num 1 Unrecognized line skipped: POC FMS LEN DIAMCOMMENT insmod: error inserting '/usr/realtime-2.6.24-16-rtai/modules/emc2/hal_ppmc.ko': -1 No such device univpwm_load.hal:13: exit value: 1 univpwm_load.hal:13: insmod failed, returned -1 See the output of 'dmesg' for more information. 5619 PID TTY STAT TIME COMMAND Stopping realtime threads Unloading hal components Kernel message information: [ 1414.429812] I-pipe: Domain RTAI registered. [ 1414.429821] RTAI[hal]: 3.6.1 mounted over IPIPE-NOTHREADS 2.0-04. [ 1414.429823] RTAI[hal]: compiled with gcc version 4.2.4 (Ubuntu 4.2.4-1ubuntu3). [ 1414.429829] RTAI[hal]: mounted (IPIPE-NOTHREADS, IMMEDIATE (INTERNAL IRQs DISPATCHED), ISOL_CPUS_MASK: 0). [ 1414.429831] PIPELINE layers: [ 1414.429834] f8c35000 9ac15d93 RTAI 200 [ 1414.429836] c0383180 0 Linux 100 [ 1414.442619] RTAI[malloc]: global heap size = 2097152 bytes, BSD. [ 1414.442986] RTAI[sched]: loaded (IMMEDIATE, UP, USER/KERNEL SPACE: with RTAI OWN KTASKs, kstacks pool size = 524288 bytes. [ 1414.442992] RTAI[sched]: hard timer type/freq = 8254-PIT/1193180(Hz); default timing: periodic; linear timed lists. [ 1414.442996] RTAI[sched]: Linux timer freq = 250 (Hz), CPU freq = 2992876000 hz. [ 1414.442998] RTAI[sched]: timer setup = 2010 ns, resched latency = 2689 ns. [ 1414.521584] RTAI[math]: loaded. [ 1414.536109] RTAPI: Init [ 1414.536131] RTAPI: Init complete [ 1414.551404] HAL_LIB: loading kernel lib [ 1414.551410] RTAPI: initing module HAL_LIB [ 1414.551413] RTAPI: module 'HAL_LIB' loaded, ID: 1 [ 1414.551553] RTAPI: shmem 01 created by module 01, key: 1212238898, size: 262000 [ 1414.551559] HAL_LIB: kernel lib installed successfully [ 1414.605787] PARPORT: ERROR: linux parport parport0 does not support mode 4 [ 1414.960387] RTAI[math]: unloaded. [ 1415.017533] SCHED releases registered named ALIEN RTGLBH [ 1415.032557] RTAI[malloc]: unloaded. [ 1415.132197] RTAI[sched]: unloaded (forced hard/soft/hard transitions: traps 0, syscalls 0). [ 1415.134790] I-pipe: Domain RTAI unregistered. [ 1415.134797] RTAI[hal]: unmounted. Neil -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] RELEASED: emc 2.4.0
On Mon, May 10, 2010 at 9:58 AM, Jeff Epler jep...@unpythonic.net wrote: On Mon, May 10, 2010 at 09:30:03AM -0700, Neil Baylis wrote: I ran into an error after the upgrade. My system is the EMC2 Hardy live CD install, and I'm using the config files from pico systems website for the universal PWM controller. The files are at: http://pico-systems.com/codes/univpwm/ The only change I made was to edit the ini file and remove the line referring to the nml file. Thanks for attaching that information. I think the key line is this one: [ 1414.605787] PARPORT: ERROR: linux parport parport0 does not support mode 4 this means that the Linux parport driver doesn't think your port works in EPP mode. If your system worked before the upgrade to 2.4.0, then obviously this is not correct. You should be able to get running with 2.4.0 by disabling the linux parport driver (which was the default in 2.3.x installs). In the terminal, run this command: sudoedit /etc/modprobe.d/emc2 then remove the # from the last line in the file so that it reads install parport_pc /bin/true and then reboot. After that, I expect that emc will start for you. Please let us know if this doesn't fix the problem you encountered. Jeff Jeff, that didn't seem to change anything. It still reports the same error about mode 4. I double checked that the change to the modprobe file was correct, and just for superstition I rebooted as well. I don't see any mention of parport in any of the config files from pico, so I'm not sure how it knows to load that driver. It does load hal_ppmc, so maybe that drives the parallel port. Neil -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] RELEASED: emc 2.4.0
OK, I'm confused, but it works now. I checked the file, and it was correct as you specifed. After booting, but before running emc, lsmod indicated that parport_pc was not loaded but parport was loaded, and that modules lp and ppdev depended on it. I checked, and the problem still happened. During and after runninf emc, lsmod still showed the same modules: no parport_pc, but parport loaded, and depended on by lp and ppdev. I rebooted again (this is the third time since I did the upgrade to 2.4) and checked lsmod. Still the same: no parport_pc, but parport is loaded with dependencies lp and ppdev. I tried emc again, and now it works. While emc is running, lsmod indicates the following: n...@tardis:~$ lsmod | grep parport parport33224 3 hal_ppmc,ppdev,lp When I quit emc, the hal_ppmc dependency goes away, but the others remain. That's how it should be, right? So I guess somehow you were barking up the right tree. Editing the modprobe file must have fixed the problem, but it required an extra reboot for some reason. Neil -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] RELEASED: emc 2.4.0
On Mon, May 10, 2010 at 7:18 PM, Jon Elson el...@pico-systems.com wrote: Neil Baylis wrote: I rebooted again (this is the third time since I did the upgrade to 2.4) and checked lsmod. Still the same: no parport_pc, but parport is loaded with dependencies lp and ppdev. I tried emc again, and now it works. While emc is running, lsmod indicates the following: I might power down and reboot just to make sure it comes up right EVERY time. This sounds suspicious. (and, just in case you didn't know, there is a big difference between logging off and rebooting the kernel.) OK, I'll power cycle and check a few more times. Neil -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Linear motor tuning test
I made a short video of progress in tuning my Linear Motor axis. This is going to be the Y axis of a laser machine. In the video, it's doing a series of random rapids at 30 inches per second, or 1800 IPM. During these rapids, the FE is less than 0.05 inches. I'm not done with the tuning yet, but these results are encouraging. Linear Motor tests http://www.youtube.com/watch?v=wxwgzj4KmCE The motor is driven by a Pico systems 3 phase PWM amplifier, and the Pico systems UPC controller. This amp uses 6-step commutation, and initially I was concerned that there would be too much force ripple. Seems I didn't have to worry. You can hear two main sounds in the video. The higher pitched scraping sound is the sound of the linear bearings. There's also a lower pitched rumble, which is coming from the motor. This sound seems to be caused by the Derivative term in the control loop. If I set D to zero, the rumble goes away, but the FE becomes too great. Neil -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Linear motor tuning test
On Sat, May 8, 2010 at 5:04 PM, Cal Grandy cmg...@comcast.net wrote: Why should one care about following error during rapid moves? Such motion is usually only point to point, with accel and decel at the respective ends. Does the FE remain after the motion halts? What's the difference between G0 at 30 IPS and G1 at 30 IPS? Neil -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Linear motor tuning test
On Sat, May 8, 2010 at 8:37 PM, Jon Elson el...@pico-systems.com wrote: I don't think it ever reached 30 IPS, maybe about half that, due to acceleration. Still, QUITE impressive. Oh it gets up to 30. Actually, I've had it up to 32 IPS, according to Halscope, but this test had the max velocity set to 30. I have the acceleration set pretty high, so most of the move is at constant velocity. But sure, on the shorter ones, it wont be getting to 30. At these sorts of speeds, you may need to up the servo sampling rate quite a bit. You can easily go to 2 KHz, and with a good PCI parallel port card, you should be able to go to 4 or 5 KHz. Why do I need to do that? Yeah, I definitely hear similar things in round-motor servos, too. If you are not using FF1 and FF2, you may be able to use those with less D and get even better performance. Since you have no cutting loads to respond to, you should be able to reduce error to about 2-3 encoder counts at all speeds with the feed-forward. It only takes a little FF1 and very small FF2 to make a huge difference. It is easy to overdo the FF and make things worse. FF1 of 1-5 and FF2 of .01 are numbers I often see. I'm using FF1 of about 5. I tweaked FF2 a couple of times, but it didn't seem to make any difference. I was hoping it would let me lower the D. I have more tests to do though, and as you probably know, it's easy to get confused about which term you're tuning. That rumble comes from the sampling of the encoder count, plus your low encoder resolution, causing the velocity measured each servo cycle to jump around a lot. Won't that get worse if I increase the servo sample rate? For instance, at 15 IPS, you are getting 15 encoder counts/sample (assuming a 1 KHz servo rate). But, the real samples are likely to jump between 14, 15 and 16 each sample. That is perceived by the PID algorithm as a 6.7% jump in velocity. This is then amplified by the D term and added to the PWM output. The higher the D, the more you amplify these apparent velocity fluctuations, even though the real velocity is not actually fluctuating. This is another of the reasons low encoder resolution causes problems. Looking in the source code of the PID, I noticed there's no filtering on the D term. I've used a filtered difference in the past to combat the derivative noise, but of course it introduces phase shift. I've ordered a higher resolution (5 micron) encoder, so it will be interesting to see how much improvement that gives. I've also ordered a better power supply, and will raise the current limit by an amp or so. As it is, everything is remaining cool to the touch. I can't detect any temperature rise at all. Neil -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Encoder resolution Following Error
I hope this isn't a really stupid question, but what's the relationship between encoder resolution and following error? For example, the machine I'm building currently has a linear encoder of 250 cycles per inch, or 1000 counts. I assume this won't allow me to achieve 0.001 following error. And I understand FE is also affected by machine rigidity, encoder noise, and other factors. Is there a formula that would tell me what FE would be reasonably achievable with my machine? If I install an encoder with double the resolution, will that cut my FE in half? Neil -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Encoder resolution Following Error
Steve, Jim: Thanks for the info. It's stupid not to ask questions. Questions in and of themselves are not stupid. I've been laughed at more than a few times because of the questions I have asked. After the laughter died down and I received an answer I was a smarter man. Thanks Jim. I take comfort from the realization that I have immense potential for becoming a smarter man too. [?] Neil 330.gif-- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Encoder resolution Following Error
Thanks, Jon. I don't have a particular goal. Rather, as I'm tuning my machine learning about EMC, I want to void going on a wild goose chase. At the moment, I just want to see how well it will perform when optimally tuned. I'm tweaking it in increments, running lots of tests. Currently, It's doing about 25 inches per second rapids, within 0.05 inches FE. I don't know what the FE is at low speeds yet. I had been tuning it with no load, but realize that was a waste of time, so I clamped a steel block to it, adding about 3 pounds to the moving mass. It actually seems a little easier to tune with the extra weight. Much less twitchy. This is roughly in the ballpark of the load it will carry when I mount the other axis on it. Anyway, from what folks are saying, sounds like I should be satisfied if I get the FE down to .010 inches. Neil -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Function keys not... functioning.
Is there anything I need to configure to make the function keys (in Axis GUI) work? When I hit the function keys, e.g. F1, F2 nothing happens. The function keys work in emacs, so I know it's possible. I'm using the Ubuntu 8.04 live CD install of EMC2, downloaded from the linuxcnc website. Thanks, Neil -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Function keys not... functioning.
Well, the Dell keyboard worked. So then I did what I should have done in the first place: ask the Google! Turns out, there's a magic incantation you can do to make the function keys of an Apple keyboard work correctly under Ubuntu: First you have to edit the file /etc/modprobe.d/options, add “options hid pb_fnmode=2″ Then run sudo update-initramfs -u Followed by a reboot. Now the function keys work as expected, and I can operate the estop of Axis from my keyboard. -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Need help configuring Home
I'm trying to understand how to setup my homing config. I've been reading everything I can find in the docs, but still can't get this to work. I have a single axis, X There's a limit switch at each end. I want these switches to stop the machine if it ever hits them. I want to use the negative limit switch as the home switch. When I press the home button in the GUI (TkEMC), I want the machine to find that switch and then move away from it by maybe 1/2 inch. I want it to call that position home, and to set the current position to zero. Here's the Homing section of my .ini file: HOME_SEARCH_VEL = -1.0 HOME_LATCH_VEL = 0.1 HOME_USE_INDEX = NO HOME_IGNORE_LIMITS = NO HOME_IS_SHARED = NO HOME_OFFSET = 0.0 HOME = 0.0 Here's the section of the .hal file where the signals are defined: newsig Xminlim bit linksp Xminlim = ppmc.0.din.02.in-not linksp Xminlim = axis.0.neg-lim-sw-in linksp Xminlim = axis.0.home-sw-in newsig Xmaxlim bit linksp Xmaxlim = ppmc.0.din.03.in-not linksp Xmaxlim = axis.0.pos-lim-sw-in Here's what happens: If I set HOME_IGNORE_LIMITS to YES, then the machine drives right past the limit switch into the hard stop, and eventually hits the FE limit. If I set HOME_IGNORE_LIMITS to NO, then the machine stops at the limit switch and complains that it encountered a limit in homing state 5. I think it's acting as though it doesn't see axis.0.home-sw-in, although it does see axis.0.neg-lim-sw-in On the GUI, the X position goes red if I activate either of the limit switches, so I think the limit switch plumbing is correct. Neil -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Need help configuring Home
On Tue, May 4, 2010 at 11:16 AM, Andy Pugh a...@andypugh.fsnet.co.uk wrote: On 4 May 2010 17:31, Neil Baylis neil.bay...@gmail.com wrote: There's a limit switch at each end. I want these switches to stop the machine if it ever hits them. I want to use the negative limit switch as the home switch. When I press the home button in the GUI (TkEMC), I want the machine to find that switch and then move away from it by maybe 1/2 inch. I want it to call that position home, and to set the current position to zero. All perfectly standard, I think. Yeah, that's what I thought. This is mine: HOME = 5.0 MIN_LIMIT = 0.0 MAX_LIMIT = 700.0 HOME_OFFSET = 0.00 HOME_SEARCH_VEL = -25.00 HOME_LATCH_VEL = 1.562500 HOME_IGNORE_LIMITS = YES HOME_SEQUENCE = 1 When I set HOME_IGNORE_LIMITS = YES then the machine moves past the limit switch (Which is supposed to also be the home switch) and hits the hard stop. It does not seem to recognize the switch as a home switch. Neil -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Need help configuring Home
Oh, I thought HOME_IS_SHARED meant the home was shared with another axis. I'll give that a try. Neil On Tue, May 4, 2010 at 12:03 PM, Stephen Wille Padnos spad...@sover.net wrote: Neil Baylis wrote: [snip] Here's the Homing section of my .ini file: HOME_SEARCH_VEL = -1.0 HOME_LATCH_VEL = 0.1 HOME_USE_INDEX = NO HOME_IGNORE_LIMITS = NO HOME_IS_SHARED = NO HOME_OFFSET = 0.0 HOME = 0.0 I think you need HOME_IS_SHARED = 1 That says that home is shared with a limit. - Steve -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- http://www.pixpopuli.com -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Need help configuring Home
No, same problem. With HOME_IGNORE_LIMITS = YES, it sails right past the home/limit switch and hits the hard stop. With HOME_IGNORE_LIMITS = NO, it stops at the limit, complaining that it hit a limit in homing state 5. HOME_IS_SHARED seems to have no effect on this. Note: I tried monitoring the axis.0.home-sw-in with Halmeter, but it never changes. Also, when I use Halmeter to monitor the limit switch, that never changes either, even though it is changing on TkEMC. Something I don't understand about using Halmeter, I guess. Neil -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Need help configuring Home
No,I manually move it away from the switch before I start. Neil On Tue, May 4, 2010 at 12:27 PM, Stuart Stevenson stus...@gmail.com wrote: Is it possible the state of the home switch is tripped and the machine is backing off the switch from the start? -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- dos centavos -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- http://www.pixpopuli.com -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Need help configuring Home
Thanks Steve. I made 3 halmeters as you suggested. They all register FALSE, even when the GUI is showing the position in red when I hit the limit. Just to make sure halmeter is working, I added another halmeter on axis.0.motor-pos-fb and it showed the same position as the GUI does, updating correctly as I move the machine by hand. So halmeter is working, but doesn't show the digital ins for some reason. Neil You should try looking at all three things that have to do with the home switch: the pin ppmc.0.din.02.in-not, the signal Xminlim, and the pin axis.0.home-sw-in. If they are ever different, you have a problem (since the two pins are supposed to be connected together, they should always have the same value). You should be able to hit the switch and see all three halmeters switch between true and false. -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Need help configuring Home
OK, I've posted what I think is relevant. If there's a file missing, let me know. I posted the output of halcmd show twice, once with the machine off the limit switch, and again with it on the limit switch. I omitted the .tbl and .var files. These files are edited versions of originals from the pico systems website. I must have deleted something important. The files are at: http://pastebin.com/AkEw8975 Each section begins with *** and a description of what follows, so just search for the *** to get to the individual pieces. Thanks, Neil -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Need help configuring Home
Indeed, that was the problem. Now, the halmeters show the limit switch as expected, as well as the home signal. The homing sequence works correctly. (I changed HOME_IGNORE_LIMITS to YES, and it does the expected thing). Thanks everyone for your help and suggestions. Neil -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Emergency Stop switch
I'm looking to source an e-stop switch. I have some already with the big red mushroom button that latches when you press it, and must be turned to release. This is good. But what I want is a switch that can also be operated by a signal from the computer. So if the computer detects an e-stop condition, the mushroom button would pop down, just as if I had pressed it by hand. I would drive it from a digital out, obviously. Does such a thing exist, and can anyone point me at a source? Thanks, Neil Baylis -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Emergency Stop switch
Thanks Jim, I understand how to set up such a failsafe circuit. But in addition, I want the actual e-stop switch to activate and latch, so that regardless of whether the computer generates a fault condition, or I do it myself, I still have to manually release the switch before resuming operation. Neil On Mon, Apr 12, 2010 at 10:39 AM, Jim Fleig - CNC Services j...@cncservices.ws wrote: Hi Neil, Setup a failsafe circuit with the connection passing through the E-stop contacts energizing a relay. If anything in the series circuit becomes open (E-stop button, relay contacts in E-stop circuit, overtravel limit switch contacts, etc.) the functions dependant upon that circuit being closed stop functioning. Someone may have a schematic example to share. If not, email me and I will send you an example. Have a good day, Jim - Original Message - From: Neil Baylis neil.bay...@gmail.com To: emc-users@lists.sourceforge.net Sent: Monday, April 12, 2010 1:19 PM Subject: [Emc-users] Emergency Stop switch I'm looking to source an e-stop switch. I have some already with the big red mushroom button that latches when you press it, and must be turned to release. This is good. But what I want is a switch that can also be operated by a signal from the computer. So if the computer detects an e-stop condition, the mushroom button would pop down, just as if I had pressed it by hand. I would drive it from a digital out, obviously. Does such a thing exist, and can anyone point me at a source? Thanks, Neil Baylis -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- http://www.pixpopuli.com -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Emergency Stop switch
OK, thanks. I guess they don't exist. I guess what I'll do is to add a circuit that requires the e-stop button to be pressed before a fault condition can be cleared. Then I have no choice but to twist the e-stop before resuming. Thanks, Neil On Mon, Apr 12, 2010 at 11:32 AM, Jim Fleig - CNC Services j...@cncservices.ws wrote: Hi Neil, I believe Eric is correct. After 30 years in industry (the last 20 specifically with CNC) I have never seen what you are describing. As Eric mentioned, a relay that must be activated by a reset switch would do the job. Reset switches for this purpose I have seen and included in some of the retrofits that I have done. Have a good day, Jim - Original Message - From: Eric Keller keller...@gmail.com To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Sent: Monday, April 12, 2010 2:01 PM Subject: Re: [Emc-users] Emergency Stop switch My guess is that a switch with an actuator in it would be so expensive that nobody has ever bothered to market one. I think your best bet is to have a self-powering relay that can only be turned on by a momentary switch. Eric On Mon, Apr 12, 2010 at 1:53 PM, Neil Baylis neil.bay...@gmail.com wrote: Thanks Jim, I understand how to set up such a failsafe circuit. But in addition, I want the actual e-stop switch to activate and latch, so that regardless of whether the computer generates a fault condition, or I do it myself, I still have to manually release the switch before resuming operation. Neil On Mon, Apr 12, 2010 at 10:39 AM, Jim Fleig - CNC Services j...@cncservices.ws wrote: Hi Neil, Setup a failsafe circuit with the connection passing through the E-stop contacts energizing a relay. If anything in the series circuit becomes open (E-stop button, relay contacts in E-stop circuit, overtravel limit switch contacts, etc.) the functions dependant upon that circuit being closed stop functioning. Someone may have a schematic example to share. If not, email me and I will send you an example. Have a good day, Jim - Original Message - From: Neil Baylis neil.bay...@gmail.com To: emc-users@lists.sourceforge.net Sent: Monday, April 12, 2010 1:19 PM Subject: [Emc-users] Emergency Stop switch I'm looking to source an e-stop switch. I have some already with the big red mushroom button that latches when you press it, and must be turned to release. This is good. But what I want is a switch that can also be operated by a signal from the computer. So if the computer detects an e-stop condition, the mushroom button would pop down, just as if I had pressed it by hand. I would drive it from a digital out, obviously. Does such a thing exist, and can anyone point me at a source? Thanks, Neil Baylis -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- http://www.pixpopuli.com -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Download Intel#174
Re: [Emc-users] Emergency Stop switch
What's a safety relay? Is it a particular kind of relay? Neil On Mon, Apr 12, 2010 at 2:51 PM, Alex Joni alex.j...@robcon.ro wrote: Just use a safety relay for this, no need to reinvent the wheel.. Regards, Alex On 4/12/2010 10:10 PM, Neil Baylis wrote: OK, thanks. I guess they don't exist. I guess what I'll do is to add a circuit that requires the e-stop button to be pressed before a fault condition can be cleared. Then I have no choice but to twist the e-stop before resuming. Thanks, Neil On Mon, Apr 12, 2010 at 11:32 AM, Jim Fleig - CNC Services j...@cncservices.ws wrote: Hi Neil, I believe Eric is correct. After 30 years in industry (the last 20 specifically with CNC) I have never seen what you are describing. As Eric mentioned, a relay that must be activated by a reset switch would do the job. Reset switches for this purpose I have seen and included in some of the retrofits that I have done. Have a good day, Jim - Original Message - From: Eric Kellerkeller...@gmail.com To: Enhanced Machine Controller (EMC)emc-users@lists.sourceforge.net Sent: Monday, April 12, 2010 2:01 PM Subject: Re: [Emc-users] Emergency Stop switch My guess is that a switch with an actuator in it would be so expensive that nobody has ever bothered to market one. I think your best bet is to have a self-powering relay that can only be turned on by a momentary switch. Eric On Mon, Apr 12, 2010 at 1:53 PM, Neil Baylisneil.bay...@gmail.com wrote: Thanks Jim, I understand how to set up such a failsafe circuit. But in addition, I want the actual e-stop switch to activate and latch, so that regardless of whether the computer generates a fault condition, or I do it myself, I still have to manually release the switch before resuming operation. Neil On Mon, Apr 12, 2010 at 10:39 AM, Jim Fleig - CNC Services j...@cncservices.ws wrote: Hi Neil, Setup a failsafe circuit with the connection passing through the E-stop contacts energizing a relay. If anything in the series circuit becomes open (E-stop button, relay contacts in E-stop circuit, overtravel limit switch contacts, etc.) the functions dependant upon that circuit being closed stop functioning. Someone may have a schematic example to share. If not, email me and I will send you an example. Have a good day, Jim - Original Message - From: Neil Baylisneil.bay...@gmail.com To:emc-users@lists.sourceforge.net Sent: Monday, April 12, 2010 1:19 PM Subject: [Emc-users] Emergency Stop switch I'm looking to source an e-stop switch. I have some already with the big red mushroom button that latches when you press it, and must be turned to release. This is good. But what I want is a switch that can also be operated by a signal from the computer. So if the computer detects an e-stop condition, the mushroom button would pop down, just as if I had pressed it by hand. I would drive it from a digital out, obviously. Does such a thing exist, and can anyone point me at a source? Thanks, Neil Baylis No virus found in this outgoing message. Checked by AVG - www.avg.com Version: 9.0.801 / Virus Database: 271.1.1/2807 - Release Date: 04/12/10 21:32:00 -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- http://www.pixpopuli.com -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Emergency Stop switch
Thanks, Alex. On Mon, Apr 12, 2010 at 3:50 PM, Alex Joni alex.j...@robcon.ro wrote: Here's a nice difference between a normal relay estop setup and a safety relay: http://www.ia.omron.com/product/cautions/189/img/cn_2.gif Regards, Alex On 4/13/2010 1:47 AM, Alex Joni wrote: http://www.pilz.com/products/control_communication/safety_relay/index.en.jsp (first hit off google) Basicly they are a relay, with some aditional circuitry inside so that bad things can't happen. if you have a glitch in the safety circuit, the safety relay opens and stays that way until you reset it But there are various kinds, with various inputs/connection circuits. Regards, Alex On 4/13/2010 1:01 AM, Neil Baylis wrote: What's a safety relay? Is it a particular kind of relay? Neil On Mon, Apr 12, 2010 at 2:51 PM, Alex Jonialex.j...@robcon.ro wrote: Just use a safety relay for this, no need to reinvent the wheel.. Regards, Alex On 4/12/2010 10:10 PM, Neil Baylis wrote: OK, thanks. I guess they don't exist. I guess what I'll do is to add a circuit that requires the e-stop button to be pressed before a fault condition can be cleared. Then I have no choice but to twist the e-stop before resuming. Thanks, Neil On Mon, Apr 12, 2010 at 11:32 AM, Jim Fleig - CNC Services j...@cncservices.ws wrote: Hi Neil, I believe Eric is correct. After 30 years in industry (the last 20 specifically with CNC) I have never seen what you are describing. As Eric mentioned, a relay that must be activated by a reset switch would do the job. Reset switches for this purpose I have seen and included in some of the retrofits that I have done. Have a good day, Jim - Original Message - From: Eric Kellerkeller...@gmail.com To: Enhanced Machine Controller (EMC)emc-users@lists.sourceforge.net Sent: Monday, April 12, 2010 2:01 PM Subject: Re: [Emc-users] Emergency Stop switch My guess is that a switch with an actuator in it would be so expensive that nobody has ever bothered to market one. I think your best bet is to have a self-powering relay that can only be turned on by a momentary switch. Eric On Mon, Apr 12, 2010 at 1:53 PM, Neil Baylisneil.bay...@gmail.com wrote: Thanks Jim, I understand how to set up such a failsafe circuit. But in addition, I want the actual e-stop switch to activate and latch, so that regardless of whether the computer generates a fault condition, or I do it myself, I still have to manually release the switch before resuming operation. Neil On Mon, Apr 12, 2010 at 10:39 AM, Jim Fleig - CNC Services j...@cncservices.ws wrote: Hi Neil, Setup a failsafe circuit with the connection passing through the E-stop contacts energizing a relay. If anything in the series circuit becomes open (E-stop button, relay contacts in E-stop circuit, overtravel limit switch contacts, etc.) the functions dependant upon that circuit being closed stop functioning. Someone may have a schematic example to share. If not, email me and I will send you an example. Have a good day, Jim - Original Message - From: Neil Baylisneil.bay...@gmail.com To:emc-users@lists.sourceforge.net Sent: Monday, April 12, 2010 1:19 PM Subject: [Emc-users] Emergency Stop switch I'm looking to source an e-stop switch. I have some already with the big red mushroom button that latches when you press it, and must be turned to release. This is good. But what I want is a switch that can also be operated by a signal from the computer. So if the computer detects an e-stop condition, the mushroom button would pop down, just as if I had pressed it by hand. I would drive it from a digital out, obviously. Does such a thing exist, and can anyone point me at a source? Thanks, Neil Baylis No virus found in this outgoing message. Checked by AVG - www.avg.com Version: 9.0.801 / Virus Database: 271.1.1/2807 - Release Date: 04/12/10 21:32:00 -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users No virus found in this outgoing message. Checked by AVG - www.avg.com Version: 9.0.801 / Virus Database: 271.1.1/2807 - Release Date: 04/12/10 21:32:00 -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http
Re: [Emc-users] Emergency Stop switch
I'm sure that Pilz, Faulhaber, Schaffner and a bunch of other outfits have a device that will do what you want, in some manner. I don't think I have ever seen exactly a red mushroom switch that would mechanically activate, but these companies and others have safety-rated relays (for about $400) and safety-duty PLCs (about a grand and WAY up) for these sorts of requirements. They are all designed with extensive fault-tolerant, fail-safe electronic and mechanical components. Yeah, I've seen some of these devices. You wouldn't think e-stop could get so complicated. The problem with making it mechanical through the red button is that someone intentionally or accidentally jamming the button could prevent the E-stop action from happening. I wasn't thinking that the computer would use this as a way to stop the machine. Rather, the computer would stop the machine however it already does, but in addition it would press the e-stop, forcing the operator to twist/lift the button before resuming, even if he never pressed the button. Neil -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] C Style Extensions for GCode
This is a very powerful extension, but I'm wondering if it's the best
approach. Rather than coming up with a new meta-language for creating
G Codes, why not just add a statement that runs an external program
that outputs G Codes? That way, you can write the program in any
language you like, make use of IDEs, debuggers, or whatever, without
having to re-invent the wheel. It would work similarly to the way CGI
works for websites. The external program would simply output G Codes
to stdout.
I understand there's already the ability to run an external program
triggered by an M Code, but I don't think you can get output from that
program back into your original G Code program. (Of course, I may be
wrong about this...)
The problem with creating a new language is that you can't use any
existing tools for debugging it; you have to create everything from
scratch.
Neil
On Tue, Apr 6, 2010 at 4:01 PM, Flying Electron Inc
sa...@flyingelectron.com wrote:
Hi All,
I wrote a python extension for axis that allows C language style extensions
to the GCode if anyone wants to give it a try.
http://tsemsb.blogspot.com/2010/04/cgcc-gcode-with-c-constructs.html
It allows you to write code like this:
// Constants
const float X_Holes = 10;
const float Y_Holes = 10;
// Loop
for (float y = 0; y Y_Holes; y++) {
for (float x = 0; x X_Holes; x++) {
if (x != y) {
G00 Z1
G00 X[x] Y[y]
G01 Z0 F1
G00 Z1
}
}
}
and it gets translated into regular GCode with o-words.
Lawrence
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Re: [Emc-users] Big files
On Tue, Feb 2, 2010 at 7:53 AM, Gene Heskett gene.hesk...@gmail.com wrote: 1. emc executes the program looking for show stopper errors as it loads, assuming instant moves without output to the machinery. Is it possible that this behavior could be made optional? For example, there's no point in doing this check on a file that is known to be good. Neil -- The Planet: dedicated and managed hosting, cloud storage, colocation Stay online with enterprise data centers and the best network in the business Choose flexible plans and management services without long-term contracts Personal 24x7 support from experience hosting pros just a phone call away. http://p.sf.net/sfu/theplanet-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Latency test numbers confusing
On Thu, Jan 14, 2010 at 4:05 AM, rng3 r...@verizon.net wrote: If the GUI latency test gives a result of how EMC will perform I always wondered if abusing the computer during the test does not result in an overly conservative number. I never use the computer that is running EMC with any other program until the parts are done. (Am I the only one?) There can be a dramatic difference between the latency test running by itself or the test running with everything else we may be doing with the computer at the same time. On a side note I have just started testing a Dell Optiplex GX520. When you first start the computer during the first 4 minutes there are two 250,000 spikes in the test with or without SMI. So far they do not repeat again even after the computer is on for several hours. Have had similar results in the 120,000 range with a Optiplex GX260 that I am using on a mill without any problems. May not be an issue, just have to warm the computer up before cutting! Rick Yes, this is exactly what I'm seeing on the GX280. If I reset the latency test after those spiikes, I never see them again. I'm going to try starting the computer, but not running the test for half an hour or so to see what happens. Is there any procedure for tracking down the cause of these spikes? Neil -- Throughout its 18-year history, RSA Conference consistently attracts the world's best and brightest in the field, creating opportunities for Conference attendees to learn about information security's most important issues through interactions with peers, luminaries and emerging and established companies. http://p.sf.net/sfu/rsaconf-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Latency test numbers confusing
2010/1/14 Евгений Александрович evgeni_a...@mail.ru: Maybe the problem is CPU TERMAL TROLLING? I tested one PC, which had BIOS without option to disable CPU TERMAL TROLLING. I did not find any way how to use that PC with EMC2. Sorry I don't know what that is. I guess it means my BIOS has no way of disabling it either. -- Throughout its 18-year history, RSA Conference consistently attracts the world's best and brightest in the field, creating opportunities for Conference attendees to learn about information security's most important issues through interactions with peers, luminaries and emerging and established companies. http://p.sf.net/sfu/rsaconf-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Latency test numbers confusing
On a side note I have just started testing a Dell Optiplex GX520. When you first start the computer during the first 4 minutes there are two 250,000 spikes in the test with or without SMI. So far they do not repeat again even after the computer is on for several hours. Have had similar results in the 120,000 range with a Optiplex GX260 that I am using on a mill without any problems. May not be an issue, just have to warm the computer up before cutting! Rick What is SMI? Also, what graphics card are you using with the Dells? Neil -- Throughout its 18-year history, RSA Conference consistently attracts the world's best and brightest in the field, creating opportunities for Conference attendees to learn about information security's most important issues through interactions with peers, luminaries and emerging and established companies. http://p.sf.net/sfu/rsaconf-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Latency test numbers confusing
OK, so I started up the computer, then waited 1/2 hour. Then I ran the latency test for 1/2 hour with no abuse, and the latency was below 7 microseconds. I have plenty of other computers, so I certainly don't need to be doing anything else on my EMC box when it's running EMC. Neil -- Throughout its 18-year history, RSA Conference consistently attracts the world's best and brightest in the field, creating opportunities for Conference attendees to learn about information security's most important issues through interactions with peers, luminaries and emerging and established companies. http://p.sf.net/sfu/rsaconf-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Latency test numbers confusing
Ah OK. The penny drops. When I get home tonight, I'll follow the directions to disable SMI and see what happens. Is SMI the facility that makes the fans speed up and slow down according to how busy the system is? Or is that something else? (My fans seem very dynamic, speeding up and slowing down at the drop of a hat. But if I run just the latency test, they run quiet and slow.) -- Throughout its 18-year history, RSA Conference consistently attracts the world's best and brightest in the field, creating opportunities for Conference attendees to learn about information security's most important issues through interactions with peers, luminaries and emerging and established companies. http://p.sf.net/sfu/rsaconf-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Latency test numbers confusing
Ah OK. The penny drops. When I get home tonight, I'll follow the directions to disable SMI and see what happens. Is SMI the facility that makes the fans speed up and slow down according to how busy the system is? Or is that something else? (My fans seem very dynamic, speeding up and slowing down at the drop of a hat. But if I run just the latency test, they run quiet and slow.) -- Throughout its 18-year history, RSA Conference consistently attracts the world's best and brightest in the field, creating opportunities for Conference attendees to learn about information security's most important issues through interactions with peers, luminaries and emerging and established companies. http://p.sf.net/sfu/rsaconf-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Latency test numbers confusing
On Thu, Jan 14, 2010 at 1:00 PM, Andy Pugh a...@andypugh.fsnet.co.uk wrote: 2010/1/14 Neil Baylis neil.bay...@gmail.com: Ah OK. The penny drops. When I get home tonight, I'll follow the directions to disable SMI and see what happens. It doesn't sound like SMI. That normally happens periodically. (in my case it was every 64 seconds) You were correct. I followed the instructions for disabling SMI, and it made no difference. However, it seems reliably true that once you get past the two spikes, the latency is tolerable. I'm going to run that way for the time being, and see how it goes. If I notice problems, I'll investigate further. Neil -- Throughout its 18-year history, RSA Conference consistently attracts the world's best and brightest in the field, creating opportunities for Conference attendees to learn about information security's most important issues through interactions with peers, luminaries and emerging and established companies. http://p.sf.net/sfu/rsaconf-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Latency test numbers confusing
I've been running the latency test from the applications menu as I experiment with my graphics setup. Today I discovered the command-line version, and ran that. What's confusing is that I get different results depending on which one I run. When I run the command-line version, the worst latency I ever see is about 12 microseconds. This seems fine. When I run the GUI version, it's more like 25 microseconds, but very occasionally I see numbers greater than 100 microseconds. This seems not so fine at all. Any idea what's going on here? Which numbers should I believe? Neil -- This SF.Net email is sponsored by the Verizon Developer Community Take advantage of Verizon's best-in-class app development support A streamlined, 14 day to market process makes app distribution fast and easy Join now and get one step closer to millions of Verizon customers http://p.sf.net/sfu/verizon-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Graphics card with DVI out?
Hello, Can anyone recommend a graphics card that's known to play nice with EMC, and which has a DVI output? I just bought an NVIDIA card for my computer, and it works OK, but I found out that all NVIDIA cards are not recommended. So I was planning to get an ATI card instead, if there's reason to think it will work with EMC. As it is, my EMC computer has a VGA with built in Intel graphics. This won't work for me, as I want to connect it to my DVI monitor. Believe it or not, I have no VGA monitor, and don't want to get one. Thanks, Neil Baylis -- This SF.Net email is sponsored by the Verizon Developer Community Take advantage of Verizon's best-in-class app development support A streamlined, 14 day to market process makes app distribution fast and easy Join now and get one step closer to millions of Verizon customers http://p.sf.net/sfu/verizon-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Graphics card with DVI out?
Supplemental question: If I get a graphics card from somewhere, is there a way to know if it will work with EMC? is it enough to run the latency test, or do I have to actually run a machine and see if it works OK? Thanks, Neil -- This SF.Net email is sponsored by the Verizon Developer Community Take advantage of Verizon's best-in-class app development support A streamlined, 14 day to market process makes app distribution fast and easy Join now and get one step closer to millions of Verizon customers http://p.sf.net/sfu/verizon-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Graphics card with DVI out?
On Thu, Jan 7, 2010 at 2:04 PM, Andy Pugh a...@andypugh.fsnet.co.uk wrote: Do you know for sure that your current card does not work with EMC? No. I'm just going by the dire warnings I've seen in the EMC wiki. I have two identical computers (Dell GX280 Small Form Factor). One of them has Ubuntu 9.10, and the other has Ubuntu 8.04 (The EMC live CD install). I bought two of the NVIDIA cards (before I knew there might be a problem) and installed them in both computers. The one in the 9.10 box works fine. The one in the EMC box died before I had a chance to do the latency test, so I'm sending that one back to Newegg. Tonight I'll swap the 1 good card back into the EMC box, and run the latency test to see what happens. Neil -- This SF.Net email is sponsored by the Verizon Developer Community Take advantage of Verizon's best-in-class app development support A streamlined, 14 day to market process makes app distribution fast and easy Join now and get one step closer to millions of Verizon customers http://p.sf.net/sfu/verizon-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
