[Emc-users] I'm Looking for new laptop compatable with EMC suggestions
I'm looking to buy a new laptop in the $600-$750 range that I can dual boot with xp and emc. What are the suggestions on processor compatability? Is there any particular graphic chipset to look for or stay away from? I'm considering Gateway and Dell, do you have any suggestions? I'm currently taking mastercam classes, I have my own shop and weighing adding steppers to my mill. I have set up emc/ubuntu on a 2.4 celeron but didn't have enough time to realy play with it indepth but I certainly intend to in between quarters in class. I'm just getting to the point in mastercam that I can define toolpaths for contours, pockets, holedrilling etc, and fairly familiar with transform function. If anyone wants to offer up a mastercam/emc comparison also I am all ears. Thank you for replies Mike The fish are biting. Get more visitors on your site using Yahoo! Search Marketing. http://searchmarketing.yahoo.com/arp/sponsoredsearch_v2.php - Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier. Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Command-line interface to EMC2
While EMC is processing a file, how do I get its status. I am looking for Busy, Done, etc. EMCRSH and AXIS-REMOTE do not seem to have any appropriate commands, unless I am overlooking something. Best regards, -- -- Glenn -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Eric H. Johnson Sent: Wednesday, February 07, 2007 11:03 AM To: 'Enhanced Machine Controller (EMC)' Subject: Re: [Emc-users] Command-line interface to EMC2 Jeff, It should be noted however that if AXIS, or any other user interface opens a program file, that issuing: get program To emcrsh will (ok should, I know it works with tkemc) return the current open program. Regards, Eric > It's possible that 'open' is working, but axis isn't doing > what you expect. If another UI (including emcrsh) opens a > file, AXIS doesn't automatically load that file in its > preview. If you want to open a file in AXIS to preview, you > can use the script 'axis-remote' to do it. - Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier. Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users - Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier. Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] HOME Sensors
I'm impressed with your answer. I recognize that I didn't have idea about cable pairing in order to improve noise immunity. I will take care of this, and put a section on the web to comment on this. I wonder if you have also a Eurotherm 631 driver, because you seem to be very familiar with our setup. I've reviewed the information regarding resolvers, and yes, you are right again. The motor has a resolver and the signal it produces is translated to quadrature encoder signals by the driver. I tried to figure out what kind of resolver it uses, but I found only that it is a "2 pole Eurotherm transmitter resolver", no references in Eurotherm web page. So I don't know if the signal is transmitted analogically or digitally from the resolver to the drive (just curiosity). I have configured the quadrature signal in the drive to be 4096 steps per revolution (the maximum possible at the drive). So I don't know how confident can I be about the accuracy of the quadrature steps given by the drive. In a quadrature encoder of the type based on printed disk, with the same amount of steps per rev, I think you can be confident about the accuracy being +-360/4096 degrees, provided that the disk has been printed OK, it is well attached to the shaft and that no meaningful vibrations affect the sensors (I think). But I'm not sure the induced currents in a 2 pole resolver can be that accurate when related to the angle. I mean you can generate 4096 per rev quadrature steps based on an imprecise periodical and continuous analog signal, if you have a decent 12 bit A/D converter, but this does not necessarily implies that the quadrature signal generated is accurate at all. The only advantage I see to a resolver against a quadrature encoder, is the former being able to give a continuous signal, so a good A/D (say 16 bits) will allow you to implement a more precise PID when the motor is at zero velocity. But this advantage will only noticed if we can read directly the analog signal given by the resolver, something that I judge difficult to do in our setup. I'm thinking (in a future arrangement) about placing linear encoders along the guide, avoiding the possible imprecise measurements given by the resolver, and the imprecision associated to the backlash between rotary and linear motor. Feel free to comment on any of the above. I'm just speaking (loud) about my lack of knowledge regarding the fine details needed to tune or design a good machine for CNC. Thanks very much indeed Javier > I agree that the pins on the x40 connector are connected to the > corresponding pins on the motenc-100 terminal board. You can, however, > improve the noise immunity by rearranging the wires on *both* ends of > the cable. > > http://www.imac.unavarra.es/parallel/images/argazkiak/DSCN1697.JPG > > In this image, B+ and B- are connected to the blue/blue-white pair, so > the B channel signal has added immunity from noise and crosstalk. On the > other hand, the A channel and X channel signals are each split between > two pairs, so neither receives the benefit of running over a twisted > pair. If you can remake the RJ-45 end of the cable, you can put each > channel on its own pair and get additional noise immunity. That was > what I was trying to say earlier. There's a writeup on balanced signals > and twisted pair here: > http://www.duxcw.com/digest/Howto/network/cable/cable4.htm > > Regards, > Jim > > > > - > Using Tomcat but need to do more? Need to support web services, security? > Get stuff done quickly with pre-integrated technology to make your job easier. > Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users - Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier. Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Rotating & linear mix
Shortly: Yes, you can. What you need to know is what kind of kinematics it is. If your robot is simple, generic like Scara or so, you will find almost ready files. If it is not trivial kinematics, you will have to write it. But as far as I know, you will not find software which better fits strange robotics constructions like EMC> Yours Adam Okon PS: My native languagie is also NOT English. Don't you ever be ashamed of it. Energy Drink napisał(a): > Hi, > I hope you understand what i mean, my native language is NOT English. > Is it possible to mix linear and rotating axes as you desire?. A robot > on rails, or any other type of mix. If this is possible, do you programm > it by telling where the tool tip is in 3D space or?. > > Best regards > > > > > - > Using Tomcat but need to do more? Need to support web services, security? > Get stuff done quickly with pre-integrated technology to make your job easier. > Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 > > > > > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users - Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier. Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] HOME Sensors
On Tue, 2007-02-06 at 10:25 +0100, Javier Ros Ganuza wrote: > On Mon, 2007-02-05 at 12:28 -0500, Jim Register wrote: [thread snipped] > > Oh, the X40 connector does not have the pairs on the same pins as an > > RJ45 Ethernet connection. If you used a stock Ethernet cable, GND > > and /Z will be on one pair, Z and /A on another, and A and 5VI on a > > third. Only B and /B will be on a pair. You need to wire the RJ45 end > > so that each signal has its own pair, or the twisted pairs in the cable > > will actually work against you. > We've linked the individual cables following the diferent colors of the > cables that can be seen thought the plastic connector and the conection > diagram provided for x40 in the 631 manual, the RJ45 cable has been open > in the opposite end, and corresponding connections has been made > following motenc-100 terminal board specifications. EMC wonderfully > drives the assembly so I think we've made proper connections in this > side. I agree that the pins on the x40 connector are connected to the corresponding pins on the motenc-100 terminal board. You can, however, improve the noise immunity by rearranging the wires on *both* ends of the cable. http://www.imac.unavarra.es/parallel/images/argazkiak/DSCN1697.JPG In this image, B+ and B- are connected to the blue/blue-white pair, so the B channel signal has added immunity from noise and crosstalk. On the other hand, the A channel and X channel signals are each split between two pairs, so neither receives the benefit of running over a twisted pair. If you can remake the RJ-45 end of the cable, you can put each channel on its own pair and get additional noise immunity. That was what I was trying to say earlier. There's a writeup on balanced signals and twisted pair here: http://www.duxcw.com/digest/Howto/network/cable/cable4.htm Regards, Jim - Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier. Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Rotating & linear mix
Hi, I hope you understand what i mean, my native language is NOT English. Is it possible to mix linear and rotating axes as you desire?. A robot on rails, or any other type of mix. If this is possible, do you programm it by telling where the tool tip is in 3D space or?. Best regards - Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier. Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
