http://blog.gmane.org/gmane.linux.distributions.emc.user hourly 1 1901-01-01T00:00+00:00 http://gmane.org/img/gmane-25t.png http://gmane.org http://comments.gmane.org/gmane.linux.distributions.emc.user/10934 Hi, I've got access to a 3-axis-mill that uses replacable milling motors. On disadvantage of them is that the used cutters are hand-placed & thus vary in length. Now I was wondering - is there any chance of using the gcode for probing and dynamic tool length compensation to enter a calibration-routine after the tool has been switched? We would of course need a "inverted touch probe" thingy - e.g. capacitive sensor plate, or something like that - to move the cutter to & get feedback over the tool length. This most probably would also involve using two coordinate systems, on for the piece and one for the length probing. Any suggestions? Diez ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url Diez B. Roggisch 2008-11-30T16:51:27 http://comments.gmane.org/gmane.linux.distributions.emc.user/10933 Does anyone know which ER capable spindle/motor is the best cost effective replacement for the Kress as shipped with Isel CNC? I want to move away from the restrictions the custom Kress collets creates and nee to replace it with an ER capable spindle/motor. ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ admin-W4ay7r7vdIs< at >public.gmane.org 2008-11-30T16:10:39 http://comments.gmane.org/gmane.linux.distributions.emc.user/10930 Hi, I have just installed a new twin parallel port card in one of my linux boxes to start playing with servos. Can someone please remind me where I can look in Ubuntu 8.04 to check that the ports are working and what their addresses are? Thanks. Ian W. Wright 2008-11-30T09:37:02 http://comments.gmane.org/gmane.linux.distributions.emc.user/10857 How well does probing and digitizing with a gimbled type spindle work? Has any one done this. I would like to use it for digitizing complex parts. Thanks in advance for any ideas offered... Dave ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ Dave Keeton 2008-11-27T14:50:40 http://comments.gmane.org/gmane.linux.distributions.emc.user/10854 Hi, I have downloaded the official package "emc.2.2.1-ubuntu 6.06", but when ubuntu is loaded, and emc is not launched, I see an activity on parallel port (pulses), so the motors are erraticaly activated. When EMC is launched, it works, and the motors turn fine the most of time, but sometimes the port is erraticaly activated. It seems that a "phantom" software works together with emc. I have installed ubuntu 8, this problem doesn't appear, but my video card is not well recognized (problem when emc is launched) So : ubuntu 6 : video OK, parallel port erratic ubuntu 8 : video nok, parallel port ok. My PC (celeron 466) works fine with win98 ;-) Do you have an idea ? Thanks Denis ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org Denis Stremplewski 2008-11-27T07:47:20 http://comments.gmane.org/gmane.linux.distributions.emc.user/10852 Gentlemen, I think the idea of controlling everyday things with EMC2 is the right thing to do. The more things controlled the better the understanding. EMC2 is so versatile it can control and 'enhance' almost any project. The more people using it the less geeky (if that is a word) it is. I think that is a good thing. The more people using it the more development, development ideas and applications we will have. Just my opinion. thanks Stuart ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ Stuart Stevenson 2008-11-27T05:36:46 http://comments.gmane.org/gmane.linux.distributions.emc.user/10848 Hello, Am interested in using EMC2 to control some traditional antenna rotators, like the Alliance U-100. These are AC motors that are turned on/off and reversed using relays (have known these to be called "bang-bang" controllers). I would like to use a triac and encoder feedback to control these in EMC, maybe, using PWM. Anyone done this type of control in EMC, or have some pointers, or both? Thanks to the developers of EMC! And, thanks for any information offered. Regards, Bob ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ Bob Freeman 2008-11-27T02:29:43 http://comments.gmane.org/gmane.linux.distributions.emc.user/10841 Gentle persons: While measuring latency on a number of candidate computers lying around*, I have noticed the same phenomenon reported by others. The longer I let the latency test run, the more likely are the latency numbers to show up any undesirable behavior. In some cases, a cpu/motherboard-combo that looked great after the "at least 15 minutes" suggested on the Wiki started looking shabby after a hour or so even when not being hammered by glxgears, etc. Hence this modest suggestion: when reporting latency numbers to this list or to the list on the Wiki, please note how long you let the test run. Thanks in advance. Regards, Kent *trees grow rings, I accumulate computers. Like tree rings, you can tell which were good years and which were bad by the size of the computers! ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great pri Kent A. Reed 2008-11-26T16:42:00 http://comments.gmane.org/gmane.linux.distributions.emc.user/10835 The download options are The EMC2 Live CD are based on Ubuntu 6.06 "Dapper Drake" LTS and Ubuntu 8.04 "Hardy Heron" LTS with additional packages maintained by the linuxcnc development team. I downloaded Ubuntu 6.06 and the file name was emc2.2.2-1-ubuntu6.06-desktop-i386.iso. After installing the package, my boot options are Ubuntu 8.04 , Kernel 2.6.24-16. ????? I have tried both dapper-install and hardy-install but I still don't have emc2. What am I missing ? ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ Marshland Engineering 2008-11-26T10:21:35 http://comments.gmane.org/gmane.linux.distributions.emc.user/10834 Hi, I am at the state of configuring our stepper driven milling machine and came across an interesting issue. I set up all the parameters needed to drive an axis including backlash compensation. Most important values are as follows: SCALE = 1000 BACKLASH = 0.004 Then when I hook up a digital micrometer to the axis and start jogging 1 mm each time what I see is this: - running at reasonably high speeds the backlash comp works well and the maximum difference is +-0.001 microns. - however, when I switch to low speed (really low speed) the difference can grow up to +-0.010 microns. Well, this made me think I should compensate the friction on the axis too. As I searched through the EMC2 manual I did not find anything. I looked at one of our other machines' manual (with Heidenhain control unit) which does have the possibility to compensate friction so I assume the problem itself is not unknown. Does anyone have any kind of suggestion what to do in this case? Reagrds, Adam Novak ------------------------------- Ádám Novák 2008-11-26T06:31:00 http://comments.gmane.org/gmane.linux.distributions.emc.user/10831 Not sure if I'm being stupid or not, please on. I upgraded my harddisk with a migration package and Ubuntu did not want to boot. I downloaded the latest version, 2.2.2.1-6.06 Ubuntu from the web site and reinstalled. All up and working except no EMC2 ? I'm not sure where to start. Thanks Wallace ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ Marshland Engineering 2008-11-25T22:33:23 http://comments.gmane.org/gmane.linux.distributions.emc.user/10823 Andy, The motor tool Gene was (probably) trying to recall is the Proxxon IB/E Professional Rotary Tool. I'm using one on my smallest machine, and it does a great job. Very nicely machined nose allows mounting, the motor is fairly quiet (compared to the Porter-Cable routers on two of the other machines). The max cutter shaft diameter is .125. It uses a collet similar to the Dremel, but it is split in thirds rather than quarters. Feel free to contact me off-list if you would like to see how this works for me. Doug Goff 2008-11-25T12:39:43 http://comments.gmane.org/gmane.linux.distributions.emc.user/10822 Guys, I am definitely not a moderator but ... I see lots of posts that have subjects not matching the content and complete quoted emails. Could we please try to get the subject of emails matching the content and quote only the necessary lines of the original email. Things are getting impossible to follow. Regards, Rob ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ Rob Jansen 2008-11-25T08:46:40 http://comments.gmane.org/gmane.linux.distributions.emc.user/10798 Ronald Najaka, in Connecticut, has contacted me to say that he has four HNC's for sale. Here is a link to his pictures: http://www.wallacecompany.com/machine_shop/HNC/Najaka/ I am just passing this information along in case someone might be interested. My conversion: http://www.wallacecompany.com/cnc_lathe/HNC/ is working well and was fairly easy and inexpensive. Others on the EMC2 list have done this conversion too, so there should be support available. Ronald's e-mail address is ran69-fuDLTLi4t9nR7s880joybQ< at >public.gmane.org . ----------- Kirk http://www.wallacecompany.com/machine_shop/ ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ Kirk Wallace 2008-11-24T18:09:11 http://comments.gmane.org/gmane.linux.distributions.emc.user/10786 Stepconf allows you to create a machine with a space in the name. However EMC won't let you select that configuration. Andy Andrew Ayre 2008-11-24T05:28:27 http://comments.gmane.org/gmane.linux.distributions.emc.user/10778 Hi: Is there any reason this should not work? (in emc2.2.7) o<A_routine1> sub g0 x0y0 z50 g0 x10 y10 z40 g0 x0 y0 z50 o<A_routine1> endsub o<b_routine2> sub g0 x0y0 z50 g0 x5 y5 z40 g0 x0 y0 z50 o<b_routine2> endsub o<A_routine1> call o<b_routine2> call o<A_routine1> call it gives an error redefining sub O135995526 (on the defining of the second sub) (it does work fine if I change the <b_routine2> to a number Thanks, Mike _________________________________________________________________ ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ Mike Merrett 2008-11-23T21:30:25 http://comments.gmane.org/gmane.linux.distributions.emc.user/10751 I am running EMC2_2.2.7 and Axis. I am trying to add another widget to my pyvcp. I added this to panel.xml: <labelframe text="Jog Speed"> <scale> <halpin>"jog-speed-set"</halpin> <resolution>0.1</resolution> <orient>HORIZONTAL</orient> <min_>0</min_> <max_>120</max_> </scale> </labelframe> I added this to custom_postgui.hal: net jog-speed-final halui.jog-speed <= pyvcp.jog-speed-set The problem is that now EMC2 fails to load. It reports that pyvcp.jog-speed-set does not exist in custom_postgui.hal. If I comment out the line in custom_postgui.hal EMC2 loads. It shows the slider bar but of course it is not connected to anything. Does anyone have an idea what is wrong? Thanks, Alan ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event a acondit 2008-11-22T20:32:44 http://comments.gmane.org/gmane.linux.distributions.emc.user/10743 One of my Isel macjines (a small Davinci) uses a Kress Spindle. I contacted Isel USA to find out what Collets they use as I want to replacce some of mine. They said ER25. Well After buying ER25 set of 15, it is NOT the same as what came with my Isel. I then bought ER11 and ER16 sets, and neither of those asre remotely the same as what I have bought with my Isel. I am starting to think that they gave me the wrong info and that maybe the Kress Spindle uses DIN Collets. Before I spend another $1000 on the wrong collets, and since Isel USA seemingly have no clue of customer service, or knowledge of their own products they distribute, I am wondering of anyone here can help me to try and ID the collets I have or maybe help me to convert my cress to take ER collets. Thanks ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand priz admin-W4ay7r7vdIs< at >public.gmane.org 2008-11-22T17:57:12 http://comments.gmane.org/gmane.linux.distributions.emc.user/10733 Gentlemen, I have been thinking. :) 1: Since the forward and inverse calculations must match is there any reason to calculate both for all modes of operation? Depending on the mode shouldn't you be able to skip the unneeded calculation? This would allow twice the calculation time and not lose any speed. A mode change could change the calculation path through the kins. or 2: A matrix stack would allow both calculations at the same time. The kins would calculate a matrix for the forward kins and do an inverse calculation of the resulting matrix for the inverse kins (or vice versa). The kins would not have to recalculate the whole stack for both forward kins and inverse kins. thought? comments? thanks Stuart ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere Stuart Stevenson 2008-11-22T13:23:28 http://comments.gmane.org/gmane.linux.distributions.emc.user/10726 Hi, I've been happily generating g-code files and cutting them with AXIS. I'm using EMC2 pre-2.2 CVS HEAD. Yes, I know it's old but I have everything working and I am reluctant to change it right now as I am trying to get Christmas gifts made as quickly as possible. With a new g-code file I get "Joint 0 Following Error" at the same point every time in the file. Line 161 I believe. The g-code file is here: http://files.britishideas.com/public/emc2/jointerror1.ngc On April 17th, 2007 Chris Radek said this about the error message: "It means the difference between the commanded position and feedback position differ by more than the allowed following error." I am using a simple, HobbyCNC card with steppers, three axis, no feedback. I have backlash compensation set in the emc2 ini file. I have cut lots of g-code files without a problem until now. Can anyone give me some hints on how to solve this? Is it a problem with the g-code? Thanks! Andy Andrew Ayre 2008-11-22T03:45:37 http://comments.gmane.org/gmane.linux.distributions.emc.user/10722 Hi everybody, I see that the newest hardware with frequency tuning and with many advanced features not always give the best performances in terms of latency, used with an RTOS. So now I will ask you... Are there on the market a special hardware designed to be used in Real Time environment? Where? So I think that this hardware is minimal, so I need only: - VGA - one or two PCI slot (for mesa cards) - Serial ports and/or parallel ports - One or two USB - LAN And so without advanced features like bluetooth, wi-fi, HDMI, audio, etc... Thank you! Roberto ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ Roberto Caminiti 2008-11-22T00:32:35 Search the mailing list at Gmane query http://search.gmane.org/?group=$group=gmane.linux.distributions.emc.user