Re: [Emc-users] Need advice on building a mill controller with EMC2
Original-Nachricht Datum: Thu, 06 Sep 2007 00:17:41 -0500 Von: Jon Elson [EMAIL PROTECTED] An: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Betreff: Re: [Emc-users] Need advice on building a mill controller with EMC2 Gerhard Pircher wrote: Von: Jon Elson [EMAIL PROTECTED] These are 14 W motors? That seems awfully small, even for a desktop machine. Yeah, that's another problem. IIRC originally the machine was used to polish ceramic-like materials. I guess more powerful servo motors were not necessary for this application. Which motor power rating would you recommend for a desktop mill? I have used some 22 W (continuous) motors on Taig and 150 Lb micro-mills with surprisingly good results. I did have to use a 4:1 belt reduction to the 16 TPI screws of the micro-mill, I hooked them directly to the 20 TPI screws of the Taig, and it just barely worked. I could still exchange them with the 3557CS series of Faulhaber servo motors, which have the same dimensions, but seem to be ~25W types. Other servo motors may not work due to their size, because the motors are integrated in cases of the same dimensions, which are tightly coupled to a belt-driven gear mechanism. I guess I will test the machine first with the original motors. All of the servo amplifier I looked so far deliver enough power for the Faulhaber servo motors. Gerhard -- GMX FreeMail: 1 GB Postfach, 5 E-Mail-Adressen, 10 Free SMS. Alle Infos und kostenlose Anmeldung: http://www.gmx.net/de/go/freemail - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Need advice on building a mill controller with EMC2
Hi, I'm seeking for some comments about how to build a mill controller with EMC2, as I'm completely new to this topic. I got a 12 years old desktop mill, which was manufactured by KERN- Microtechnic [1]. The machine is in a very good condition, but some parts of the original mill controller (a rack mounted controller manufactured by NUM) are missing and most of the documentation is lost. Thus it was not possible to get the old controller operational again and EMC2 seemed to be a reasonable alternative to a commercial product. First a few technical details about the desktop mill. It should have a resolution or 5µm, whereas switches allow to detect the point of origin and Haidenhain rulers deliver a quadrature signal for relative position measurement. The mill is equipped with Faulhaber DC servo motors [2] for the X/Y/Z axis, which are coupled to tacho-generators [3]. I thought about using VitalSystem's MOTENCLite PCI [4] card. It's analog outputs should drive a DC servo amplifier [5] through a standard +/-10V interface. The tacho-generators will be used to regulate the velocity of the DC servo motors, which is set by EMC2 (the servo amplifier implements the closed loop control). Three of the 4 quadrature inputs of the PCI card will be connected to the Haidenhain rulers [6] and the generic digital inputs will be used for the switches to detect the point of origin. Since I don't know much about EMC2 yet, I would like to know, if my (early) concept is feasible and what should be considered when building a mill controller with EMC2. It would also be nice, if a MOTENCLite user can share his experiences with this card. Thanks in advance! regards, Gerhard [1] http://kern-microtechnic.com - German only [2] http://www.faulhaber-group.com/uploadpk/e_3557C_DFF.pdf [3] http://www.faulhaber-group.com/uploadpk/e_2225_DFF.pdf [4] http://www.vitalsystem.com/web/motion/motionLite.php [5] http://docs-europe.electrocomponents.com/webdocs/020f/0900766b8020f51d.pdf [6] http://www.heidenhain.de/wcmsmimefiles/208_961_24_16952.PDF, page 44 -- Ist Ihr Browser Vista-kompatibel? Jetzt die neuesten Browser-Versionen downloaden: http://www.gmx.net/de/go/browser - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Need advice on building a mill controller with EMC2
Your setup sounds very much like my Anilam setups. Tach feedback to drives, encoder feedback to controller, +-10V velocity command signal from controller to drive. I used a Mesa 5i20 ($199) and 7i33 ($69), I also use a 7i37(69) for I/O. I was originally looking at the Motenc Lite card but the Mesa hardware saved me a good deal of $ and works great. RogerN - Original Message - From: Gerhard Pircher [EMAIL PROTECTED] To: emc-users@lists.sourceforge.net Sent: Wednesday, September 05, 2007 5:46 AM Subject: [Emc-users] Need advice on building a mill controller with EMC2 Hi, I'm seeking for some comments about how to build a mill controller with EMC2, as I'm completely new to this topic. I got a 12 years old desktop mill, which was manufactured by KERN- Microtechnic [1]. The machine is in a very good condition, but some parts of the original mill controller (a rack mounted controller manufactured by NUM) are missing and most of the documentation is lost. Thus it was not possible to get the old controller operational again and EMC2 seemed to be a reasonable alternative to a commercial product. First a few technical details about the desktop mill. It should have a resolution or 5µm, whereas switches allow to detect the point of origin and Haidenhain rulers deliver a quadrature signal for relative position measurement. The mill is equipped with Faulhaber DC servo motors [2] for the X/Y/Z axis, which are coupled to tacho-generators [3]. I thought about using VitalSystem's MOTENCLite PCI [4] card. It's analog outputs should drive a DC servo amplifier [5] through a standard +/-10V interface. The tacho-generators will be used to regulate the velocity of the DC servo motors, which is set by EMC2 (the servo amplifier implements the closed loop control). Three of the 4 quadrature inputs of the PCI card will be connected to the Haidenhain rulers [6] and the generic digital inputs will be used for the switches to detect the point of origin. Since I don't know much about EMC2 yet, I would like to know, if my (early) concept is feasible and what should be considered when building a mill controller with EMC2. It would also be nice, if a MOTENCLite user can share his experiences with this card. Thanks in advance! regards, Gerhard [1] http://kern-microtechnic.com - German only [2] http://www.faulhaber-group.com/uploadpk/e_3557C_DFF.pdf [3] http://www.faulhaber-group.com/uploadpk/e_2225_DFF.pdf [4] http://www.vitalsystem.com/web/motion/motionLite.php [5] http://docs-europe.electrocomponents.com/webdocs/020f/0900766b8020f51d.pdf [6] http://www.heidenhain.de/wcmsmimefiles/208_961_24_16952.PDF, page 44 -- Ist Ihr Browser Vista-kompatibel? Jetzt die neuesten Browser-Versionen downloaden: http://www.gmx.net/de/go/browser - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Need advice on building a mill controller with EMC2
Gerhard Pircher wrote: Hi, I'm seeking for some comments about how to build a mill controller with EMC2, as I'm completely new to this topic. I got a 12 years old desktop mill, which was manufactured by KERN- Microtechnic [1]. The machine is in a very good condition, but some parts of the original mill controller (a rack mounted controller manufactured by NUM) are missing and most of the documentation is lost. Thus it was not possible to get the old controller operational again and EMC2 seemed to be a reasonable alternative to a commercial product. First a few technical details about the desktop mill. It should have a resolution or 5µm, whereas switches allow to detect the point of origin and Haidenhain rulers deliver a quadrature signal for relative position measurement. The mill is equipped with Faulhaber DC servo motors [2] for the X/Y/Z axis, which are coupled to tacho-generators [3]. I thought about using VitalSystem's MOTENCLite PCI [4] card. It's analog outputs should drive a DC servo amplifier [5] through a standard +/-10V interface. The tacho-generators will be used to regulate the velocity of the DC servo motors, which is set by EMC2 (the servo amplifier implements the closed loop control). Three of the 4 quadrature inputs of the PCI card will be connected to the Haidenhain rulers [6] and the generic digital inputs will be used for the switches to detect the point of origin. Since I don't know much about EMC2 yet, I would like to know, if my (early) concept is feasible and what should be considered when building a mill controller with EMC2. It would also be nice, if a MOTENCLite user can share his experiences with this card. You might also take a look at my universal PWM controller and PWM servo amps. These are likely to be less expensive than the items you have listed. See http://jelinux.pico-systems.com/univpwm.html and http://jelinux.pico-systems.com/pwmservo.html These are 14 W motors? That seems awfully small, even for a desktop machine. Jon - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Need advice on building a mill controller with EMC2
Hi, The Mesa card looks interesting. Do you use it with the SoftDMC Digital Motion Control Firmware? What drivers do you use for the servo motors? Gerhard Original-Nachricht Datum: Wed, 5 Sep 2007 08:42:38 -0500 Von: RogerN [EMAIL PROTECTED] An: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Betreff: Re: [Emc-users] Need advice on building a mill controller with EMC2 Your setup sounds very much like my Anilam setups. Tach feedback to drives, encoder feedback to controller, +-10V velocity command signal from controller to drive. I used a Mesa 5i20 ($199) and 7i33 ($69), I also use a 7i37(69) for I/O. I was originally looking at the Motenc Lite card but the Mesa hardware saved me a good deal of $ and works great. RogerN -- GMX FreeMail: 1 GB Postfach, 5 E-Mail-Adressen, 10 Free SMS. Alle Infos und kostenlose Anmeldung: http://www.gmx.net/de/go/freemail - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Need advice on building a mill controller with EMC2
Original-Nachricht Datum: Wed, 05 Sep 2007 11:47:09 -0500 Von: Jon Elson [EMAIL PROTECTED] An: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Betreff: Re: [Emc-users] Need advice on building a mill controller with EMC2 You might also take a look at my universal PWM controller and PWM servo amps. These are likely to be less expensive than the items you have listed. See http://jelinux.pico-systems.com/univpwm.html and http://jelinux.pico-systems.com/pwmservo.html I also thought about using PWM servo amps. But not all of them support tacho-generators, which I would like to reuse, since they are tightly coupled to the servo motors in my machine. These are 14 W motors? That seems awfully small, even for a desktop machine. Yeah, that's another problem. IIRC originally the machine was used to polish ceramic-like materials. I guess more powerful servo motors were not necessary for this application. Which motor power rating would you recommend for a desktop mill? Gerhard -- Ist Ihr Browser Vista-kompatibel? Jetzt die neuesten Browser-Versionen downloaden: http://www.gmx.net/de/go/browser - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Need advice on building a mill controller with EMC2
On Wed, Sep 05, 2007 at 09:45:49PM +0200, Gerhard Pircher wrote: The Mesa card looks interesting. Do you use it with the SoftDMC Digital Motion Control Firmware? With emc2, the hostmot firmware is used. With hostmot, emc sends velocity commands and reads encoder counts, performing closed-loop operation and pid control in the emc software. Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
