Re: [Emc-users] Live CD RTAI version ??
You can find the version number of any installed package at the terminal: $ dpkg -l rtai-modules-2.6.15-magma ||/ Name VersionDescription +++-==-==- ii rtai-modules-2 3.3-1+aj4 rtai modules for Linux (kernel 2.6.15-magma) Thus, the rtai on this system (installed from the emc2 dapper live cd) is based on rtai 3.3. I determined the correct package name using 'dpkg-query -S', which says what package name is associated with a particular installed file: $ dpkg -S /usr/realtime-2.6.15-magma/bin/rtai-load rtai-modules-2.6.15-magma: /usr/realtime-2.6.15-magma/bin/rtai-load I could also have used a wildcard with dpkg -l, guessing that the package name started with rtai: $ dpkg -l rtai\* ||/ Name VersionDescription +++-==-==- ii rtai-modules-2 3.3-1+aj4 rtai modules for Linux (kernel 2.6.15-magma) (some command output trimmed a bit for clarity) Jeff - Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Chip Load for Drilling
Here is the link for the chipload drilling article. Took me a while to find it... http://www.practicalmachinist.com/vb/showthread.php?p=862651#post862651 Enjoy John - Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Index only homing
I see from the change log that index only homing was added at 2.2.0, but I haven't found anything that tells me how to implement this. I'm using a direct drive servo as a rotary axis, and the index pulse is too short for the normal homing sequence to work. Thanks, Fred Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ - Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Index only homing
In your .hal file, connect the index-enable pin of the encoder counter and the associated axis.N.index-enable. In your .ini file, set HOME_SEARCH_VEL to 0 (or omit it), and set HOME_LATCH_VEL to the speed at which you want to move during the search for index. To home, ensure that the motor is within the first revolution before the index you designate as home, then hit the Home or Home All button in the GUI. http://linuxcnc.org/docs/html/config_ini_homing.html#HOME%20LATCH%20VEL -- it is documented, but pretty cryptically. Jeff - Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Chip Load for Drilling
On Thursday 27 March 2008, John Thornton wrote: Here is the link for the chipload drilling article. Took me a while to find it... http://www.practicalmachinist.com/vb/showthread.php?p=862651#post862651 Enjoy John Thanks, John. I could have used that today, I broke a 0.050 bit in cast iron, about 1/4 down on the second peck by mouse control, another .3 to go. I wound up moving the hole, but not quite far enough dinged up a 1/4-28 tap on the remains. Using a properly programmed peck cycle, I imagine I can do the next one just fine by following that advice. I was installing a grease fitting, and that was the channel into the bearing bore. I got all the parts to put ball bearing thrust washers in the screw bearings of my micromill today, so I ran out and put in the first pair. Sweet! No more squalling screws the backlash is now .0004! I can't wait to get the other axis done, but this cold rain ran me out of the shop till it warms a bit again. -- 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) ... I see TOILET SEATS ... - Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Index only homing
Jeff, regarding the rotary encoder homing on a linear axis... We use a similar system, but use an additional prox switch that says, 'the home is inside THIS revolution'. I use it on a device where the encoder is on a worm gear that turns 90x for every 360 of a C axis. But the idea should apply to a rotary encoder on a linear axis. Some hal-foo is needed for the 'close to home' prox switch. Oh, beware being too close to the prox's edge ;) Try to have 'home' at least 1/2 turn past 'close to home'. regards TomP - Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Index only homing
On Mar 27, 2008, at 6:12 PM, Jeff Epler wrote: In your .hal file, connect the index-enable pin of the encoder counter and the associated axis.N.index-enable. In your .ini file, set HOME_SEARCH_VEL to 0 (or omit it), and set HOME_LATCH_VEL to the speed at which you want to move during the search for index. To home, ensure that the motor is within the first revolution before the index you designate as home, then hit the Home or Home All button in the GUI. ensure that the encoder is within one turn of home; this then takes care of encoders on the motor or on the ballscrew. Just being picky. ;-) Having a starting point that is 1/2 turn off is really ideal. http://linuxcnc.org/docs/html/config_ini_homing.html#HOME%20LATCH% 20VEL -- it is documented, but pretty cryptically. Jeff -- --- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/ marketplace ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users - Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] How to set certain AXIS settings to defaults?
Jon, Are you implying that you manually, or otherwise, get the table to within one encoder revolution of home and then do a homing sequence with EMC? Glenn -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jon Elson Sent: Wednesday, March 26, 2008 10:51 AM To: Enhanced Machine Controller (EMC) Subject: Re: [Emc-users] How to set certain AXIS settings to defaults? Gary Fixler wrote: One of the reasons I often drill a useless hole someplace at the start of the project, and write my code with that as the 0,0,0 point. That makes getting back to within a couple thou a bit easier. That's a great idea. I would love an absolute positioning system - something that was always the same for the mill, at least between full strip-downs, and rebuilds. Well, it depends on how your homing system works. I have index pulses on my encoders, and home to those pulses. I get quite repeatable homing that way. In theory, I could shut down one day, fire it up the next day, home the axes, and be right on the same alignment to the vise jaw or whatever. Jon - Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users - Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Chip Load for Drilling
On Thu, Mar 27, 2008 at 05:42:24PM -0600, John Thornton wrote: Here is the link for the chipload drilling article. Took me a while to find it... http://www.practicalmachinist.com/vb/showthread.php?p=862651#post862651 John, Interesting thread, especially KAwhoom-FLAP!, but scrolling up down several times didn't reveal anything I could recognise as an article or link thereto. Is the chat in the thread the article, or did I blink? It seemed a good deal more flamboyant than recent informative description of experience with hard and soft aluminium, on this list, I thought. Erik - Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
