Re: [Emc-users] Any experience with MC433 4 axis stepp er driver board from soc-machines ?
On Saturday 16 August 2008, Sergey Izvoztchikov wrote: Anyone has experience with this board ? Is it known product or new board ? Any pros and cons ? Is is going to work under EMC2 control ? Would it be a good choice for Sherline Mill CNC retrofit ? http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=230280442519ssPageN ame=STRK:MEWA:ITih=013 There is some info about PWM signals shape. Is it enough to configure EMC2 properly ? Here is link to board specs - I think emc could drive this board, but I'd have some concerns. 1. The chopper frequency is fixed at 12 kilohertz. This seems a little low, and could lead to magnetic saturation of the motors, which in turn causes quite large currents to flow at the end of the on cycle when the pwm is at maximum width. And as emc itself can, on barn burner cpu's reach nearly 10 kilohertz step rates, I could envision step loss problems could be generated at high step rates. At its relatively course step rates, resonance dampers are going to be needed although the actual speed will be much (4x/8x) higher than a xylotex at its default of 1/8 step. I found dampers to be a huge help even with the 1/8 step of the xylotex. http://www.soc-machines.com/pdfs/MC433%20Hardware%20Technical%20Manual% 20R11b.pdf And here are motors to go with this board - http://cgi.ebay.com/3-High-Speed-NEMA23-125oz-in-Stepper-Motors-SM3006B_W0QQ itemZ330262184558QQihZ014QQcategoryZ71394QQssPageNameZWDVWQQrdZ1QQcmdZViewIt em Which seems a little odd. Using an amplifier capable of 33 amps peak, 10 with normal cooling, with a motor this small (3Amps max) seems to be a miss-match to me. This board would be at home driving a 20x stronger nema 42 motor given good cooling. Bear in mind my experience is with the xylotex board, not this, or Gecko's, so my thoughts are colored by that. It does seem like a viable driver for bigger motors than the 125's the above link leads to. -- 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) To be sure of hitting the target, shoot first and, whatever you hit, call it the target. - 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=100url=/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Any experience with MC433 4 axis stepper driver board from soc-machines ?
I am biased by Gecko because for me they have worked so well so with that in mind don't rule out this even though it might cost more. http://www.geckodrive.com/product.aspx?c=3i=14469 I am also partial to AutomationDirect so for stepper motors I go here http://web1.automationdirect.com/adc/Shopping/Catalog/Motion_Control/Stepper_S ystems/Motors_-z-_Cables I also use Antek power supplies... http://www.antekinc.com/ YMMV You still have to make up your mind on what is best suited for you... John On 16 Aug 2008 at 1:53, Sergey Izvoztchikov wrote: Anyone has experience with this board ? Is it known product or new board ? Any pros and cons ? Is is going to work under EMC2 control ? Would it be a good choice for Sherline Mill CNC retrofit ? http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=230280442519s sPageName=STRK:MEWA:ITih=013 There is some info about PWM signals shape. Is it enough to configure EMC2 properly ? Here is link to board specs - http://www.soc-machines.com/pdfs/MC433%20Hardware%20Technical%20Manual % 20R11b.pdf And here are motors to go with this board - http://cgi.ebay.com/3-High-Speed-NEMA23-125oz-in-Stepper-Motors-SM3006 B_W0QQitemZ330262184558QQihZ014QQcategoryZ71394QQssPageNameZWDVWQQrdZ1 QQcmdZViewItem -- --- 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=100url=/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users - 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=100url=/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] emc2 2.2.6 hostmot2 stepgen bug workaround
Sebastian, Thanks. I will test it with hardware on Monday. Please see post in emc-developers. Regards, Eric EMC2 2.2.6 included the new hostmot2 device driver, with support for the Mesa 5i20 and 7i43 boards. Unfortunately, due to a bug in the driver, stepgen didn't work on the 5i20 (though it works on the 7i43). The problem has been fixed in TRUNK and in the 2.2 branch, but that only helps people who are compiling from source. Users who install emc2 via the debian package (.deb) can get stepgen working on 2.2.6 by following this recipe: 1. Add enable_raw to the load-time config string for the 5i20. 2. Set hm2_5i20.0.raw.write_address to 0x2900. 3. Set hm2_5i20.0.raw.write_data to -1. 4. Set hm2_5i20.0.raw.write_strobe to 1. When the hm2_5i20.0.write function next runs, the steppers will start working. - 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=100url=/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Any experience with MC433 4 axis stepper driver board from soc-machines ?
On Sat, Aug 16, 2008 at 01:53:04AM -0400, Sergey Izvoztchikov wrote: Anyone has experience with this board ? Is it known product or new board ? Any pros and cons ? Is is going to work under EMC2 control ? Would it be a good choice for Sherline Mill CNC retrofit ? http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=230280442519ssPageName=STRK:MEWA:ITih=013 The driver's datasheet does not specify the timings required for step length, step space, direction setup, and direction hold. The driver is unipolar, which gives lower performance (speed/torque) than bipolar. The motors you mention can be used with either a bipolar or unipolar driver. The use of open-loop current control is uncommon in stepper motor drivers. The tuning procedure does not show how to ensure that the stepper motor ratings are not exceeded. (On current-feedback designs there is a direct relationship between a reference voltage and the current limit) I don't like that the driver turns off after 30s. When the controller says the motor should be energized, it should be energized and holding position. In threads from 2006 through today, many people had trouble setting up this board with various other control software http://www.cnczone.com/forums/archive/index.php/t-23341.html http://www.cnczone.com/forums/archive/index.php/t-36386.html http://www.cnczone.com/forums/archive/index.php/t-55312.html Jeff - 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=100url=/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Stepper Amps
I am thinking about building amps to replace my Bandit stepper amps: http://www.wallacecompany.com/machine_shop/Shizuoka/1-1a.jpg http://www.wallacecompany.com/machine_shop/Shizuoka/Driver% 20Schematic1.jpg The motor supply is 45 Volts and I am shooting for 10 amp output. The input will be half-step quadrature. I am thinking about using an HIP4080 for the core of the design: http://www.wallacecompany.com/E45/rotor_cam.html or should I invest my time in another bridge driver? Also, I suppose that if I have a fast enough PWM source, I could get EMC to micro step? -- Kirk Wallace (California, USA http://www.wallacecompany.com/machine_shop/ Hardinge HNC/EMC CNC lathe, Bridgeport mill conversion, doing XY now, Zubal lathe conversion pending Craftsman AA 109 restoration Shizuoka ST-N/EMC CNC) - 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=100url=/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Any experience with MC433 4 axis stepper driver board from soc-machines ?
Sergey Izvoztchikov wrote: Anyone has experience with this board ? Is it known product or new board ? Any pros and cons ? Is is going to work under EMC2 control ? Would it be a good choice for Sherline Mill CNC retrofit ? http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=230280442519ssPageName=STRK:MEWA:ITih=013 There is some info about PWM signals shape. Is it enough to configure EMC2 properly ? Here is link to board specs - http://www.soc-machines.com/pdfs/MC433%20Hardware%20Technical%20Manual% 20R11b.pdf And here are motors to go with this board - http://cgi.ebay.com/3-High-Speed-NEMA23-125oz-in-Stepper-Motors-SM3006B_W0QQitemZ330262184558QQihZ014QQcategoryZ71394QQssPageNameZWDVWQQrdZ1QQcmdZViewItem - 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=100url=/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users I purchased one of these one or two years ago to drive my Sherline mill in place of their proprietary box which I was having problems with. It works with EMC2 but suffers exactly the problems predicted by Gene in his reply. In particular, mid band resonance and subsequent lost steps made it unusable at common cutting speeds on the Sherline. I have since abandoned it and moved on to a different driver. If you would like to try it yourself, I'd be happy to send it to you. (I'm guessing from your email address that you're in Canada, as am I) Regards Heinz Reimer - 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=100url=/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] I NEED HELP, ON WHAT PAGE IN UBUNTU SHOULD CAN I RUN MY PYVCP TEST FOR LABEL
I'm new hear, I need help on this topic above: I intend to create a label on the axis environment, i have read through the integrators manual but I dont know how to get to run the program. I need a step by step guide. what I wanted to run is: pyvcp label text=This is a LED indicator/ led/ /pyvcp I wanted to see ow this program will create the label and showing the LED. Please help Olusegun Abode +234 8037045535 Email:[EMAIL PROTECTED] - 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=100url=/___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Can someone guide me on how to execute this program?
I need help on this statement below!!! can somebody guide me in a step by step approach on how to execue this program? In page top of page 147 of the EMC2 Integrators manual there is this statement: If you place this text in a file called tiny.xml, and run pyvcp -c mypanel tiny.xml, pyVCP will create the panel for you, Where do I run this program? what do I click on and on what file. I need a start point to do this. Olusegun Abode +234 8037045535 Email:[EMAIL PROTECTED] - 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=100url=/___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Can someone guide me on how to execute this program?
You would open a terminal window and run from there. Applications/Accessories/Terminal if using Ubuntu 6.06 John On 16 Aug 2008 at 11:52, Olusegun A. wrote: I need help on this statement below!!! can somebody guide me in a step by step approach on how to execue this program? In page top of page 147 of the EMC2 Integrators manual there is this statement: If you place this text in a file called tiny.xml, and run pyvcp -c mypanel tiny.xml, pyVCP will create the panel for you, Where do I run this program? what do I click on and on what file. I need a start point to do this. Olusegun Abode +234 8037045535 Email:[EMAIL PROTECTED] - 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=100url=/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] R: I NEED HELP, ON WHAT PAGE IN UBUNTU SHOULD CAN I RUN MY PYVCP TEST FOR LABEL
Hi, on the stepper_mm.ini or your ini config file, on [display] section add the line PYVCP=led_vcp.xml 1. create a file named led_vcp.xml and on it write the pyvcp code, on your case write: pyvcp label texttesto dell'etichetta/text /label led halpinbutton_led/halpin size50/size on_colorblue/on_color off_colorblack/off_color /led/pyvcp 2. on [hal] section of config.ini file add line : POSTGUI_HALFILE =led_to_pyvcp.hal 3. And create led_to_pyvcp.hal The led_to_pyvcp.hal content the led to signal link: For example: newsig but_led bit linksp but_led = pyvcp.button_led if you don't write anythink on this file the led was show on axis but it don't work. It's all. Sorry for English. -Messaggio originale- Da: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Per conto di Olusegun A. Inviato: sabato 16 agosto 2008 20.43 A: emc-users@lists.sourceforge.net Oggetto: [Emc-users] I NEED HELP,ON WHAT PAGE IN UBUNTU SHOULD CAN I RUN MY PYVCP TEST FOR LABEL I'm new hear, I need help on this topic above: I intend to create a label on the axis environment, i have read through the integrators manual but I dont know how to get to run the program. I need a step by step guide. what I wanted to run is: pyvcp label text=This is a LED indicator/ led/ /pyvcp I wanted to see ow this program will create the label and showing the LED. Please help Olusegun Abode +234 8037045535 Email:[EMAIL PROTECTED] - 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=100url=/___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Any experience with MC433 4 axis stepper driver boardfrom soc-machines ?
You may want to read this first before deciding to buy from them http://www.cnczone.com/forums/showthread.php?t=55312highlight=modularcnc - Original Message - From: Sergey Izvoztchikov [EMAIL PROTECTED] To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Sent: Saturday, August 16, 2008 1:53 AM Subject: [Emc-users] Any experience with MC433 4 axis stepper driver boardfrom soc-machines ? Anyone has experience with this board ? Is it known product or new board ? Any pros and cons ? Is is going to work under EMC2 control ? Would it be a good choice for Sherline Mill CNC retrofit ? http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=230280442519ssPageName=STRK:MEWA:ITih=013 There is some info about PWM signals shape. Is it enough to configure EMC2 properly ? Here is link to board specs - http://www.soc-machines.com/pdfs/MC433%20Hardware%20Technical%20Manual% 20R11b.pdf And here are motors to go with this board - http://cgi.ebay.com/3-High-Speed-NEMA23-125oz-in-Stepper-Motors-SM3006B_W0QQitemZ330262184558QQihZ014QQcategoryZ71394QQssPageNameZWDVWQQrdZ1QQcmdZViewItem - 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=100url=/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users - 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=100url=/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Any experience with MC433 4 axis stepper driver boardfrom soc-machines ?
Thanks a lot everybody ! You saved my a$^%s. On Sat, 2008-08-16 at 19:07 -0400, Gary Corlew wrote: You may want to read this first before deciding to buy from them http://www.cnczone.com/forums/showthread.php?t=55312highlight=modularcnc - Original Message - From: Sergey Izvoztchikov [EMAIL PROTECTED] To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Sent: Saturday, August 16, 2008 1:53 AM Subject: [Emc-users] Any experience with MC433 4 axis stepper driver boardfrom soc-machines ? Anyone has experience with this board ? Is it known product or new board ? Any pros and cons ? Is is going to work under EMC2 control ? Would it be a good choice for Sherline Mill CNC retrofit ? http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=230280442519ssPageName=STRK:MEWA:ITih=013 There is some info about PWM signals shape. Is it enough to configure EMC2 properly ? Here is link to board specs - http://www.soc-machines.com/pdfs/MC433%20Hardware%20Technical%20Manual% 20R11b.pdf And here are motors to go with this board - http://cgi.ebay.com/3-High-Speed-NEMA23-125oz-in-Stepper-Motors-SM3006B_W0QQitemZ330262184558QQihZ014QQcategoryZ71394QQssPageNameZWDVWQQrdZ1QQcmdZViewItem - 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=100url=/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users - 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=100url=/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users - 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=100url=/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Any experience with MC433 4 axis stepper driver board from soc-machines ?
Jeff Epler wrote: I don't like that the driver turns off after 30s. When the controller says the motor should be energized, it should be energized and holding position. This could be catastrophic. I can easily imagine a cut in one axis where the other axis is holding against cutting forces, and then after 30 seconds the stationary axis starts to drift. If the 30 seconds applies to all axis, so only when ALL axes are stationary, it is less of a problem, but I still don't like it. In some machines, there is enough wind-up of various viscous drags and sprininess that when the driver shuts off the motors may be pushed back a couple full steps. Then, when the drivers come back on, the motors settle do a different position. UGH!!! Jon - 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=100url=/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Stepper Amps
Kirk Wallace wrote: I am thinking about building amps to replace my Bandit stepper amps: http://www.wallacecompany.com/machine_shop/Shizuoka/1-1a.jpg http://www.wallacecompany.com/machine_shop/Shizuoka/Driver% 20Schematic1.jpg The motor supply is 45 Volts and I am shooting for 10 amp output. The input will be half-step quadrature. I am thinking about using an HIP4080 for the core of the design: Be VERY cautious of this chip! After using it in my first servo amp, and having a lot of trouble with them blowing up, I called Harris and got hold of the applictions engineer for that chip. He assured me that I was doing better than any other customer, as I was getting nearly reliable operation at 59 V, while no other customer had ever succeded in running them above 54 V. (This is for a chip boldly advertised as good to 80 V on the DC bus, 96 V on the high-side bootstrap voltage!) Oh, well, that was GREAT news. He advised a whole bunch of crazy schemes to isolate the chip from transients, but in the end agreed all that would give me 4 or 5 more volts. If you supply is a very stable 45 V, it might work. But, after all, it is a synchronous-antiphase driver, and will cause a lot of iron heating in the motor. With only a little more work, you can use a REALLY solid chip like the IR2113, never have to worry about voltage, and build a sign-magnitude drive that will likely run the motor 30 C cooler. or should I invest my time in another bridge driver? Also, I suppose that if I have a fast enough PWM source, I could get EMC to micro step? Sure. Once you have a current control loop for each phase, microstepping is pretty trivial. But, unless you put in a system for damping mid-band resonance, you will still have a mediocre driver. My personal strategy if I was going to make a 10 A microstepping driver for myself (not as a commercial product) would be to buy some Gecko 201 or 203 drives and change the transistors and current sense resistors. Basically 10 components to change, and instant 10 A driver with about the best characteristics you could imagine. Jon - 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=100url=/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
