Re: [Emc-users] Equipment I just got for free.
--- On Sun, 3/24/13, Matt Shaver m...@mattshaver.com wrote: Post a bunch of pictures somewhere of your Anilam Bridgeport, especially of the electrical guts. With that, we can tell you a lot more about what to do! It's not mine yet. Still trying to get the guy to see that as it sits, it's not worth much. He said $300 but after I went to look it over and said I was interested, he figured the price should go up. Pics here, acra 1 through 15 http://partsbyemc.com/pub/ Nevermind the rust. It's worst on the table top. Can have the oopses filled and the top milled at an engine rebuilding shop. My 9 South Bend lathe was far worse than that. I moved the table a bit and the way wipers scraped a bunch of the rust off. Should just need a little TLC with some oil and steel wool. Ball screws look perfect, no rust at all on anything important under the table and knee. Been checking ebay and other places, might be a tossup on $$$ between getting a motor and Fenner drive board to match the others, if the control box can be put back in action or replacing the servos and control with something closer to current and tucking a mini ITX system in there. The original control box could house a touchscreen monitor. I'm leaning more towards a full electronic update and selling the remaining bits of the old Anilam system. Those DC brush type servos are bloody expensive, the Baldor brand even moreso. Another thing making an update more attractive is I've read that those Fenner boards need tuning and tweaking because when they're off they make a high pitched whine. By having patience and waiting for good deals, I figure I could get this cutting metal for around $1,000 over the cost of the mill and getting it hauled home. It's only 305 miles away, the guy who told me about it bought a big lathe from the same place, I've been fixing his Bridgeport and Lagun mills so he said I'd only have to pay some fuel cost and he'd bring it with the lathe. -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] emulation software
On Mon, Mar 25, 2013 at 12:19 AM, Greg Bernard yankeelena2...@yahoo.comwrote: Do any of you guys have a recommendation for Windows emulation software? WINE has worked welll for most of my applications but now I've started using Rhinocad which won't run on WINE. From what I can tell Virtualbox and VMware are the most popular choices but I'd like to hear other peoples experience before I dive in. Greg: Neither VirtualBox nor VMware emulates Windows. Rather, they create a environment in which Windows can run as if it were installed to bare metal (which means you still need to have a copy of Windows to install). Having said that, I've used both. I ultimately settled on VB out of laziness more than anything and haven't kept up with VMware in recent years. VB has performed satisfactorily for me with one caveat. The graphics driver it presents to applications is never as good as native drivers*. Whether that matters in your application is something you have to decide for yourself. Don't be discouraged by what you read on the Internet. The widespread display of certitude based on ignorance is breathtaking. It costs nothing but some space on your hard drive and a little of your time to install VB. Give it a try. I use it all the time because it makes management of multiple, differently flavored hosts dead easy. Good luck. Regards, Kent *This statement may be more apparent when running Windows as a virtual host than when running Linux as a virtual host but of course YMMV. -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Cable drive for a gas torch pattern follower?
On 25 March 2013 05:45, Dave e...@dc9.tzo.com wrote: They abandoned that design in favor of a more conventional CNC design. I think you would be smart in doing the same. I wonder if they abandoned it because they didn't have LinuxCNC kins? Having said that, it does seem that by the time you have engineered the cable drums you could have engineered a gantry. The cable might be more resilient to filth and nastiness. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] emulation software
You'll get best performance with a host environment software that supports hardware virtualization. To use virtualization, your computer must have support for it in its hardware, specifically a dual (or more) core CPU with virtualization support. Virtualization can provide the guest OS access to the actual hardware instead of emulated hardware, which is typically of lesser capability than the host's real hardware. Google this windows on linux virtualization If your host is Windows, Microsoft has XP Mode, but there's a better one called VMLite. Unlike XP Mode, VMlite runs on more versions of Windows and can guest newer versions of Windows on older version hosts, does not require hardware virtualization capability (XP Mode requires a patch for that) and when hardware virtuaalization is present can guest a 64 bit version of Windows on a 32 bit host. As an alternative to running Windows in an emulator or by virtualization on Linux, how about running Linux programs in Windows? Check out andLinux http://www.andlinux.org/ It's a build of Ubuntu built on a modification of coLinux -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Emc-users Digest, Vol 83, Issue 50
Il 25/03/2013 00:31, emc-users-requ...@lists.sourceforge.net ha scritto: Message: 7 Date: Sun, 24 Mar 2013 16:22:55 -0700 (PDT) From: Peter C. Wallacep...@mesanet.com Note: the Encoder is always needed, as is enable unless you have special provisions to disable drive when PWM is not toggling. The sense signals and hall signals are just GPIO so there are really no wasted pins. (even on a 7I39 if you dont use the hall /sense pins the Hall pins can be used as inputs and the sense pins for input or output) The 3 phase PWMgen has no connection at all to the hall, encoder or sense signals although some configs wire the 3pwmgens fault input to a sense pin ok i've understand the situation... i've read the SVTP6_7i39.PIN of hostmot's files on my EMC2 computer, but the SVTP4_7i39.pin file send to me from Andy Pugh is complete with GPIO on all pins and clarify the situation can i use the firmware ;-))) for best use of all, i'll must mix carasteristics of 7i39 with 7i30/7i32/7i33 cards... maybe the 7i43(400) can supply all the thread... it's an hard way for me, but the knowledge , the curiosity, the mental insanity and the GUNDAM's syndrome are my best friends ;-))) ciao Roberto -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] emulation software
On 25 March 2013 04:19, Greg Bernard yankeelena2...@yahoo.com wrote: From what I can tell Virtualbox and VMware are the most popular choices but I'd like to hear other peoples experience before I dive in. I run both Windows and Linux on my Mac under VMware. I use Windows to run AutoDesk Inventor (I used to drive Inventor for a job, and I have a legitimate home license as a side-effect of my current job) and I keep a farm of different LinuxCNC installs for testing purposes. I am happy with it, but it does cost money. Inventor is a bit sluggish, but I think this is actually the 3GB memory limit of XP rather than a VMWare issue. (I haven't paid for a more up-to-date windows OS) -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Equipment I just got for free.
On Monday 25 March 2013 06:56:28 Gregg Eshelman did opine: --- On Sun, 3/24/13, Matt Shaver m...@mattshaver.com wrote: Post a bunch of pictures somewhere of your Anilam Bridgeport, especially of the electrical guts. With that, we can tell you a lot more about what to do! It's not mine yet. Still trying to get the guy to see that as it sits, it's not worth much. He said $300 but after I went to look it over and said I was interested, he figured the price should go up. show him the rust pits in those $400+ ball screws what that will do for the accuracy. Putting it out in the weather and letting it rust like that should have a price tag. One /he/ should pay. Pics here, acra 1 through 15 http://partsbyemc.com/pub/ Nevermind the rust. It's worst on the table top. Can have the oopses filled and the top milled at an engine rebuilding shop. My 9 South Bend lathe was far worse than that. I moved the table a bit and the way wipers scraped a bunch of the rust off. Should just need a little TLC with some oil and steel wool. Ball screws look perfect, Not to me. no rust at all on anything important under the table and knee. Been checking ebay and other places, might be a tossup on $$$ between getting a motor and Fenner drive board to match the others, if the control box can be put back in action or replacing the servos and control with something closer to current and tucking a mini ITX system in there. The original control box could house a touchscreen monitor. I'm leaning more towards a full electronic update and selling the remaining bits of the old Anilam system. Those DC brush type servos are bloody expensive, the Baldor brand even moreso. Another thing making an update more attractive is I've read that those Fenner boards need tuning and tweaking because when they're off they make a high pitched whine. By having patience and waiting for good deals, I figure I could get this cutting metal for around $1,000 over the cost of the mill and getting it hauled home. It's only 305 miles away, the guy who told me about it bought a big lathe from the same place, I've been fixing his Bridgeport and Lagun mills so he said I'd only have to pay some fuel cost and he'd bring it with the lathe. 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) My web page: http://coyoteden.dyndns-free.com:85/gene is up! My views http://www.armchairpatriot.com/What%20Has%20America%20Become.shtml To fear love is to fear life, and those who fear life are already three parts dead. -- Bertrand Russell I was taught to respect my elders, but its getting harder and harder to find any... -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Latency
On Mon, Mar 25, 2013 at 2:36 AM, Dave e...@dc9.tzo.com wrote: Has anyone tried running the latency test on the Intel H61, H77, or Z77 design motherboards using a CPU with the integrated HD graphics? Intel DH61AG + i3 2120T 2.6 GHz LGA1155 http://www.anderswallin.net/2012/12/latency-histogram/ It would be great if there was a latency-test that would automatically upload results + hardware/software-configuration to a web-hosted database... Anders -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Latency problem
Am 20.03.2013 um 08:48 schrieb Bj?rn: I bougt this. http://www.ebay.com/itm/200542103383?ssPageName=STRK:MEWAX:IT_trksid=p3984.m1438.l2649 running the latest version of linuxcnc. specifically which version? I have a D525MW and get much better results Hypertreading off in bios, ISOLCPU is done. when runnnig latencytest and 3 x glxgears + some video i can run for 30 min and get: servo thread (1.0ms) max interval (ns) 1006129 max jitter 11104 Base thread (25.0ps) max interval (ns) 42342 max jitter 17463 i think i could do with this but if i run overnight the same way i get servo thread (1.0ms) max interval (ns) 1020138 max jitter 24978 Base thread (25.0ps) max interval (ns) 83039 max jitter 58160 does anyone have any idea of hvat this can be? is there a way to se any debugging information? usually that points to CPU idle/powersave states; it has turned out that wakeup from idle/powersave states is rather nondeterministic and a likely cause of latency spikes to isolate whether this is the case, try to boot the kernel with the option 'idle=poll' if things improve, idle/powersave states are very likely the cause -m And another question, is it possible to dedicate one cpu to run gui and other non realtime funktions? Regards Bjorn I am running 10.04 LTS and LinuxCNC 2.5.2 when you say, boot the kernel with the option 'idle=poll' is this done the same way as isolcpu? Regards Bjorn Kristiansen. yes try both 'idle=poll' and 'nohlt' see section 4 of http://wiki.linuxcnc.org/cgi-bin/wiki.pl?XenomaiKernelPackages this applies to RTAI just alike - Michael now i have tested: boot with isolcpu(big improvement in general latency but still spikes) turn of smi, (improvement in general latency but still spikes) 'idle=poll' and 'nohlt'(little or no effect) acpi = off and api=off (little or no effect) For the moment i have been running the system for 1,5 hour and have - servothread interval 999655 and max jitter 4495 ns - base thread interval 32069 max jitter 7190. witch i am very happy with, but if i run for several hours i still get spikes up to 5 and above. i suspect Michael are right, the problem is related toidle/powersave states. I have no settings in bios to turn of ACPI my bios is: MWNT10N.86A.0083.2011.0524.1600 is this the same as others are running? and do you have option to turn off ACPI from bios? -- Regards: Bjørn Kristiansen -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Equipment I just got for free.
On Mon, 25 Mar 2013 00:57:58 -0700 (PDT) Gregg Eshelman g_ala...@yahoo.com wrote: I'm leaning more towards a full electronic update and selling the remaining bits of the old Anilam system. Those DC brush type servos are bloody expensive, the Baldor brand even moreso. Another thing making an update more attractive is I've read that those Fenner boards need tuning and tweaking because when they're off they make a high pitched whine. They look like Servo Dynamics amps or a close facsimile. The whine is normal, and annoying :) See: http://www.mattshaver.com/v2e3/index.htm As far as the price goes, $300 is basically scrap value, so not unreasonable. Thanks, Matt -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Latency
Unless I am reading that incorrectly, that appears to be fine for a 1 ms servo thread, but would not work well for direct stepper control. The D525MW boards are really nice. I have used a lot of them over the last year plus and I have a bit of stockpile built up right now, but the Intel 525 CPU is being phased out. The Intel D525MW board is already discontinued but they have extended production probably because the D525MW replacements have so many problems. The newer Intel D2700MUD, 2500, etc boards video chip is only Windows 7 32 bit compatible which is really silly. The Intel manager who made that decision must have been using medical marijuana at the time! Jetway has a long term available D525 board but it is about $200 now and there is no assurance that they will not be phased this year also. Also PCI slots are getting rarer on the MITX boards. So when you take all of the available MITX boards, and eliminate the newer Intel CPUs, and the boards without PCI slots, you end up with very few offerings. That's my take on the current Motherboard situation.. Hence my question about the newer Intel Design MITX boards. I'd like to hear other viewpoints if you have differing opinions. Thanks, Dave On 3/25/2013 6:38 AM, Anders Wallin wrote: On Mon, Mar 25, 2013 at 2:36 AM, Davee...@dc9.tzo.com wrote: Has anyone tried running the latency test on the Intel H61, H77, or Z77 design motherboards using a CPU with the integrated HD graphics? Intel DH61AG + i3 2120T 2.6 GHz LGA1155 http://www.anderswallin.net/2012/12/latency-histogram/ It would be great if there was a latency-test that would automatically upload results + hardware/software-configuration to a web-hosted database... Anders -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Latency
On Mon, 25 Mar 2013, Dave wrote: Date: Mon, 25 Mar 2013 11:01:45 -0500 From: Dave e...@dc9.tzo.com Reply-To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Subject: Re: [Emc-users] Latency Unless I am reading that incorrectly, that appears to be fine for a 1 ms servo thread, but would not work well for direct stepper control. The D525MW boards are really nice. I have used a lot of them over the last year plus and I have a bit of stockpile built up right now, but the Intel 525 CPU is being phased out. The Intel D525MW board is already discontinued but they have extended production probably because the D525MW replacements have so many problems. The newer Intel D2700MUD, 2500, etc boards video chip is only Windows 7 32 bit compatible which is really silly. The Intel manager who made that decision must have been using medical marijuana at the time! Jetway has a long term available D525 board but it is about $200 now and there is no assurance that they will not be phased this year also. Also PCI slots are getting rarer on the MITX boards. So when you take all of the available MITX boards, and eliminate the newer Intel CPUs, and the boards without PCI slots, you end up with very few offerings. That's my take on the current Motherboard situation.. Hence my question about the newer Intel Design MITX boards. I'd like to hear other viewpoints if you have differing opinions. Thanks, Dave I think I'll order this one to try out today: http://www.newegg.com/Product/Product.aspx?Item=N82E16813128585 Whether ubuntu 10.04 will run on this is unknown however I am not a great fan of the Atoms as they are quite slow and have hidden latency problems(They have great latency if you dont do any I/O). The AMD APU's run circles around the Atoms, the Intel Celeron 847s (and 743s) should as well. On 3/25/2013 6:38 AM, Anders Wallin wrote: On Mon, Mar 25, 2013 at 2:36 AM, Davee...@dc9.tzo.com wrote: Has anyone tried running the latency test on the Intel H61, H77, or Z77 design motherboards using a CPU with the integrated HD graphics? Intel DH61AG + i3 2120T 2.6 GHz LGA1155 http://www.anderswallin.net/2012/12/latency-histogram/ It would be great if there was a latency-test that would automatically upload results + hardware/software-configuration to a web-hosted database... Anders -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users Peter Wallace Mesa Electronics (\__/) (='.'=) This is Bunny. Copy and paste bunny into your ()_() signature to help him gain world domination. -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Cable drive for a gas torch pattern follower?
I don't know if you have seen the Torchmate version or not before but here are some similar picts and discussion. http://www.cnczone.com/forums/cnc_plasma_waterjet_machines/31685-cnc_retrofit_heath_torchmate_upright_magnetic_follower_shape_cutter.html The Torchmate I remember was only big enough to fit over an upright 55 gallon drum that it used as a stand and slag catcher. So the max part size that could be cut might be 20 in diameter or so, very small by current standards but big enough for a lot of brackets. However, it would make for an interesting technical application and if it worked with sufficient accuracy, it could make for a very cheap, small CNC cutter. The Kins could be similar to a Scara robot. Using screws to move the joints would be a very interesting application of LinuxCNC kins and could be a lot simpler mechanically than using cables, drums, but with limited motion and speed which might be fine for the work envelope of the machine...The screws could be mounted above the filth to minimize maintenance issues. Perhaps there is a more clever way to drive this via cables?? Dave On 3/25/2013 4:55 AM, andy pugh wrote: On 25 March 2013 05:45, Davee...@dc9.tzo.com wrote: They abandoned that design in favor of a more conventional CNC design. I think you would be smart in doing the same. I wonder if they abandoned it because they didn't have LinuxCNC kins? Having said that, it does seem that by the time you have engineered the cable drums you could have engineered a gantry. The cable might be more resilient to filth and nastiness. -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Cable drive for a gas torch pattern follower?
I just noticed that Torchmate is now part of Lincoln Electric (a big welder manufacturer in the US). Dave On 3/25/2013 4:55 AM, andy pugh wrote: On 25 March 2013 05:45, Davee...@dc9.tzo.com wrote: They abandoned that design in favor of a more conventional CNC design. I think you would be smart in doing the same. I wonder if they abandoned it because they didn't have LinuxCNC kins? Having said that, it does seem that by the time you have engineered the cable drums you could have engineered a gantry. The cable might be more resilient to filth and nastiness. -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Equipment I just got for free.
I would do the update, who knows if the old even works with a whole new update to the control system you know what you have and can update and upgrade at will old iron like that should never die unless broken by extreme abuse, like dropping it or running into it with a fork lift or something it need some TLC but it should be a good unit as for price $300 to $500 would be more than fair, as said scrap price would be close to that I know it need work but I would drop $500 on it if it was close to me, providing nothing major is broken or damaged, the rust should be a easy fix On 3/25/2013 7:16 AM, Matt Shaver wrote: On Mon, 25 Mar 2013 00:57:58 -0700 (PDT) Gregg Eshelman g_ala...@yahoo.com wrote: I'm leaning more towards a full electronic update and selling the remaining bits of the old Anilam system. Those DC brush type servos are bloody expensive, the Baldor brand even moreso. Another thing making an update more attractive is I've read that those Fenner boards need tuning and tweaking because when they're off they make a high pitched whine. They look like Servo Dynamics amps or a close facsimile. The whine is normal, and annoying :) See: http://www.mattshaver.com/v2e3/index.htm As far as the price goes, $300 is basically scrap value, so not unreasonable. Thanks, Matt -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Cable drive for a gas torch pattern follower?
This would probably work in a bipod conficuration, with just a pair of springs on the hinges to extend the arm. Like this device: http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Koppi's_Toy With gravity replaced by springs. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Latency
I'm running the linuxCNC in a P8H61-M LX motherboard with a 6i25 mesa card toghether a 7i77 to control a 3 servo motor machine without big latency problems the average is: Max Jitter servo thread 8840 and base thread 9177 ms. But I always get a very bad result when plug some usb devices like pendrives or loading the VitualBox to run XP. Regards, Luis Bellot 2013/3/25 Peter C. Wallace p...@mesanet.com On Mon, 25 Mar 2013, Dave wrote: Date: Mon, 25 Mar 2013 11:01:45 -0500 From: Dave e...@dc9.tzo.com Reply-To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Subject: Re: [Emc-users] Latency Unless I am reading that incorrectly, that appears to be fine for a 1 ms servo thread, but would not work well for direct stepper control. The D525MW boards are really nice. I have used a lot of them over the last year plus and I have a bit of stockpile built up right now, but the Intel 525 CPU is being phased out. The Intel D525MW board is already discontinued but they have extended production probably because the D525MW replacements have so many problems. The newer Intel D2700MUD, 2500, etc boards video chip is only Windows 7 32 bit compatible which is really silly. The Intel manager who made that decision must have been using medical marijuana at the time! Jetway has a long term available D525 board but it is about $200 now and there is no assurance that they will not be phased this year also. Also PCI slots are getting rarer on the MITX boards. So when you take all of the available MITX boards, and eliminate the newer Intel CPUs, and the boards without PCI slots, you end up with very few offerings. That's my take on the current Motherboard situation.. Hence my question about the newer Intel Design MITX boards. I'd like to hear other viewpoints if you have differing opinions. Thanks, Dave I think I'll order this one to try out today: http://www.newegg.com/Product/Product.aspx?Item=N82E16813128585 Whether ubuntu 10.04 will run on this is unknown however I am not a great fan of the Atoms as they are quite slow and have hidden latency problems(They have great latency if you dont do any I/O). The AMD APU's run circles around the Atoms, the Intel Celeron 847s (and 743s) should as well. On 3/25/2013 6:38 AM, Anders Wallin wrote: On Mon, Mar 25, 2013 at 2:36 AM, Davee...@dc9.tzo.com wrote: Has anyone tried running the latency test on the Intel H61, H77, or Z77 design motherboards using a CPU with the integrated HD graphics? Intel DH61AG + i3 2120T 2.6 GHz LGA1155 http://www.anderswallin.net/2012/12/latency-histogram/ It would be great if there was a latency-test that would automatically upload results + hardware/software-configuration to a web-hosted database... Anders -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users Peter Wallace Mesa Electronics (\__/) (='.'=) This is Bunny. Copy and paste bunny into your ()_() signature to help him gain world domination. -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] emulation software
Greg Bernard wrote: Do any of you guys have a recommendation for Windows emulation software? WINE has worked welll for most of my applications but now I've started using Rhinocad which won't run on WINE. From what I can tell Virtualbox and VMware are the most popular choices but I'd like to hear other peoples experience before I dive in. VMware works with a number of high-end CAD/CAM packages that make a lot of demands for graphics, etc. The guest OS and app work MORE reliably on a Linux VMware host than on real hardware. You do need a real copy of the Windows OS to load into VMware. Then I set up Samba shares between the Windows and Linux system so I can move files around easily. I do all my electronic design (schematics and PCB layout this way, and used to do FPGA design with Xilinx software until they got that running directly on Linux.) Bobcad (blech) also runs fine on VMware. Jon -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] emulation software
I use to work with VirtualBox in my Linux workstation to run Windows XP without problems. I had no tried to work with high demanding graphics applications but I think that they must work fine, (may be little slow). The old versions of Rinho work without problems in my virtual machine. Also I'm running some linuxCNC installs in VirtualBox. Regards, Luis Bellot 2013/3/25 andy pugh bodge...@gmail.com On 25 March 2013 04:19, Greg Bernard yankeelena2...@yahoo.com wrote: From what I can tell Virtualbox and VMware are the most popular choices but I'd like to hear other peoples experience before I dive in. I run both Windows and Linux on my Mac under VMware. I use Windows to run AutoDesk Inventor (I used to drive Inventor for a job, and I have a legitimate home license as a side-effect of my current job) and I keep a farm of different LinuxCNC installs for testing purposes. I am happy with it, but it does cost money. Inventor is a bit sluggish, but I think this is actually the 3GB memory limit of XP rather than a VMWare issue. (I haven't paid for a more up-to-date windows OS) -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] 3PWM on 7i43 MESA board
Il 25/03/2013 00:31, emc-users-requ...@lists.sourceforge.net ha scritto: Message: 7 Date: Sun, 24 Mar 2013 16:22:55 -0700 (PDT) From: Peter C. Wallacep...@mesanet.com Note: the Encoder is always needed, as is enable unless you have special provisions to disable drive when PWM is not toggling. The sense signals and hall signals are just GPIO so there are really no wasted pins. (even on a 7I39 if you dont use the hall /sense pins the Hall pins can be used as inputs and the sense pins for input or output) The 3 phase PWMgen has no connection at all to the hall, encoder or sense signals although some configs wire the 3pwmgens fault input to a sense pin ok i've understand the situation... i've read the SVTP6_7i39.PIN of hostmot's files on my EMC2 computer, but the SVTP4_7i39.pin file send to me from Andy Pugh is complete with GPIO on all pins and clarify the situation can i use the firmware ;-))) for best use of all, i'll must mix carasteristics of 7i39 with 7i30/7i32/7i33 cards... maybe the 7i43(400) can supply all the thread... it's an hard way for me, but the knowledge , the curiosity, the mental insanity and the GUNDAM's syndrome are my best friends ;-))) ciao Roberto -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Latency
I missed that board and the other integrated Celeron boards.Thanks for pointing those out. Let us know what you find. That Gigabyte board has a lot to like. What AMD MITX boards are known to work well? Dave I think I'll order this one to try out today: http://www.newegg.com/Product/Product.aspx?Item=N82E16813128585 Whether ubuntu 10.04 will run on this is unknown however I am not a great fan of the Atoms as they are quite slow and have hidden latency problems(They have great latency if you dont do any I/O). The AMD APU's run circles around the Atoms, the Intel Celeron 847s (and 743s) should as well. On 3/25/2013 6:38 AM, Anders Wallin wrote: On Mon, Mar 25, 2013 at 2:36 AM, Davee...@dc9.tzo.com wrote: Has anyone tried running the latency test on the Intel H61, H77, or Z77 design motherboards using a CPU with the integrated HD graphics? Intel DH61AG + i3 2120T 2.6 GHz LGA1155 http://www.anderswallin.net/2012/12/latency-histogram/ It would be great if there was a latency-test that would automatically upload results + hardware/software-configuration to a web-hosted database... Anders -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users Peter Wallace Mesa Electronics (\__/) (='.'=) This is Bunny. Copy and paste bunny into your ()_() signature to help him gain world domination. -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Latency
On Mon, 25 Mar 2013, Dave wrote: Date: Mon, 25 Mar 2013 13:52:28 -0500 From: Dave e...@dc9.tzo.com Reply-To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net To: emc-users@lists.sourceforge.net Subject: Re: [Emc-users] Latency I missed that board and the other integrated Celeron boards.Thanks for pointing those out. Let us know what you find. That Gigabyte board has a lot to like. What AMD MITX boards are known to work well? Dave I think I'll order this one to try out today: http://www.newegg.com/Product/Product.aspx?Item=N82E16813128585 Whether ubuntu 10.04 will run on this is unknown however I am not a great fan of the Atoms as they are quite slow and have hidden latency problems(They have great latency if you dont do any I/O). The AMD APU's run circles around the Atoms, the Intel Celeron 847s (and 743s) should as well. This ones a possible: http://www.newegg.com/Product/Product.aspx?Item=N82E16813128561 Not MITX but know to work well and fanless: http://www.newegg.com/Product/Product.aspx?Item=N82E16813131875 Many more options if 1x PCIE is OK On 3/25/2013 6:38 AM, Anders Wallin wrote: On Mon, Mar 25, 2013 at 2:36 AM, Davee...@dc9.tzo.com wrote: Has anyone tried running the latency test on the Intel H61, H77, or Z77 design motherboards using a CPU with the integrated HD graphics? Intel DH61AG + i3 2120T 2.6 GHz LGA1155 http://www.anderswallin.net/2012/12/latency-histogram/ It would be great if there was a latency-test that would automatically upload results + hardware/software-configuration to a web-hosted database... Anders -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users Peter Wallace Mesa Electronics (\__/) (='.'=) This is Bunny. Copy and paste bunny into your ()_() signature to help him gain world domination. -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users Peter Wallace Mesa Electronics (\__/) (='.'=) This is Bunny. Copy and paste bunny into your ()_() signature to help him gain world domination. -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Latency problem
On 3/25/2013 9:56 AM, Bjørn wrote: snipping off previous discussion now i have tested: boot with isolcpu(big improvement in general latency but still spikes) turn of smi, (improvement in general latency but still spikes) 'idle=poll' and 'nohlt'(little or no effect) acpi = off and api=off (little or no effect) For the moment i have been running the system for 1,5 hour and have - servothread interval 999655 and max jitter 4495 ns - base thread interval 32069 max jitter 7190. witch i am very happy with, but if i run for several hours i still get spikes up to 5 and above. i suspect Michael are right, the problem is related toidle/powersave states. I have no settings in bios to turn of ACPI my bios is: MWNT10N.86A.0083.2011.0524.1600 is this the same as others are running? and do you have option to turn off ACPI from bios? Bjørn: I don't have an Intel D525MW in my stable of motherboards but I do have an ASUS AT5NM10-I whose numbers I posted last year to the table of latency-test results in the Wiki. Your pre-spike numbers are reasonably consistent with the numbers I got. The best numbers I posted were obtained with hyperthreading turned off in the BIOS and isolcpus=1 set in the boot parameters. Nothing heroic. I did my tests long before list discussions brought out the importance of other parameter settings like idle=poll. In recent shortterm tests, I also have not seen dramatic improvements manipulating these parameters. Testing this ASUS board, I haven't seen the kinds of spikes you are experiencing. (Just for the record, I was testing LinuxCNC over 10.04LTS with the RTAI kernel). I'm curious to know what all is attached to your motherboard, especially anything attached via USB. I once had a motherboard that started misbehaving when I switched from a PS/2 mouse to a USB mouse and a number of us have seen the simple act of plugging in a USB thumbdrive cause bursts in latency numbers. Is it possible you have a peripheral interface/device that is waking up on the same time scale as the occurrence of your spikes? My system guy never failed to ask if the computer were plugged to a live outlet as his first step in diagnosing problems. Obviously your computer is plugged in but how are the power supply and the AC mains? Adequate, stable, clean? Regards, Kent -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] OT: printer toner
Thank You, guys, for advice! 2013/3/25 Steve Blackmore st...@pilotltd.net: On average you will get 2 or three refills before the drum is shot anyway and you need a new cartridge. Is there any place, where I can read more about this? -- Viesturs If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Cable drive for a gas torch pattern follower?
Yes is the short answer. From some of the other answers you can get details. The only real question comes in can you use canned kenimatics or are custom ones required. Even modifying canned ones isn't to hard and this group can always be available for consistance. On Mar 24, 2013 2:11 AM, Gregg Eshelman g_ala...@yahoo.com wrote: Looking into the possibility of fitting CNC to an old oxy-acetylene pattern following torch. (It can also mount a plasma cutter.) The torch mounts on the end of an articulated arm with two joints. On top of the arm is a variable speed motor with a 1/4 diameter, knurled, magnetic shaft. That runs around the edge of any bit of steel plate in just about any shape bolted to the pattern holder arm. The problems with that, the pattern has to be steel and has to be 1/8 smaller all around than the piece cut out will be, and you have to have a pattern to be able to do anything with the tool. I've been thinking that a system with three or four servo motors and cables connected to the torch mount could move it around as well as a 2-axis gantry. Can LinuxCNC run such a setup? -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Own the Future-Intelreg; Level Up Game Demo Contest 2013 Rise to greatness in Intel's independent game demo contest. Compete for recognition, cash, and the chance to get your game on Steam. $5K grand prize plus 10 genre and skill prizes. Submit your demo by 6/6/13. http://p.sf.net/sfu/intel_levelupd2d ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Equipment I just got for free.
--- On Mon, 3/25/13, Matt Shaver m...@mattshaver.com wrote: From: Matt Shaver m...@mattshaver.com Subject: Re: [Emc-users] Equipment I just got for free. To: emc-users@lists.sourceforge.net Date: Monday, March 25, 2013, 8:16 AM On Mon, 25 Mar 2013 00:57:58 -0700 (PDT) Gregg Eshelman g_ala...@yahoo.com wrote: I'm leaning more towards a full electronic update and selling the remaining bits of the old Anilam system. Those DC brush type servos are bloody expensive, the Baldor brand even moreso. Another thing making an update more attractive is I've read that those Fenner boards need tuning and tweaking because when they're off they make a high pitched whine. They look like Servo Dynamics amps or a close facsimile. The whine is normal, and annoying :) See: http://www.mattshaver.com/v2e3/index.htm They're Fenner boards. Finally found some for sale identified by brand, which exactly match the picture I took. Still waiting to hear back on whether or not the owner is going to come back to Earth on the price. -- Own the Future-Intelreg; Level Up Game Demo Contest 2013 Rise to greatness in Intel's independent game demo contest. Compete for recognition, cash, and the chance to get your game on Steam. $5K grand prize plus 10 genre and skill prizes. Submit your demo by 6/6/13. http://p.sf.net/sfu/intel_levelupd2d ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Cable drive for a gas torch pattern follower?
On Mon, Mar 25, 2013 at 12:34 PM, andy pugh bodge...@gmail.com wrote: This would probably work in a bipod conficuration, with just a pair of springs on the hinges to extend the arm. Like this device: http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Koppi's_Toy With gravity replaced by springs. or cable attached weight so as to have constant tension , my thought is how to maintain spool diameter on the steppers? as cable winds up then the diameter increases unless a capstan of some sort is utilized, i do like the simplicity that this could bring though -- jeremy youngs -- Own the Future-Intelreg; Level Up Game Demo Contest 2013 Rise to greatness in Intel's independent game demo contest. Compete for recognition, cash, and the chance to get your game on Steam. $5K grand prize plus 10 genre and skill prizes. Submit your demo by 6/6/13. http://p.sf.net/sfu/intel_levelupd2d ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Cable drive for a gas torch pattern follower?
--- On Mon, 3/25/13, Dave e...@dc9.tzo.com wrote: From: Dave e...@dc9.tzo.com Subject: Re: [Emc-users] Cable drive for a gas torch pattern follower? To: emc-users@lists.sourceforge.net Date: Monday, March 25, 2013, 10:40 AM I don't know if you have seen the Torchmate version or not before but here are some similar picts and discussion. http://www.cnczone.com/forums/cnc_plasma_waterjet_machines/31685-cnc_retrofit_heath_torchmate_upright_magnetic_follower_shape_cutter.html Interesting info there. Finally remembered what this has been used on quite a bit. Look up wall plotter. The math has already been done many times. Most use only two cables or chains and motors, relying on gravity to keep the pen in tension. They have issues with imprecision and slack in the upper corners. Without a tension system they have to be slow so the pen doesn't wobble all over the place. To translate this to a horizontal system would require some way to keep tension to the end of the arm. How I'd connect the cables to the arm is to put a washer on the end of each cable with a hole just large enough to fit over the magnetic drive shaft. That would ensure all the cables are pulling on exactly the same point and easy to slip off for reversion to pattern follower use. -- Own the Future-Intelreg; Level Up Game Demo Contest 2013 Rise to greatness in Intel's independent game demo contest. Compete for recognition, cash, and the chance to get your game on Steam. $5K grand prize plus 10 genre and skill prizes. Submit your demo by 6/6/13. http://p.sf.net/sfu/intel_levelupd2d ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Cable drive for a gas torch pattern follower?
On 25 March 2013 22:25, jeremy youngs jcyoung...@gmail.com wrote: or cable attached weight so as to have constant tension , my thought is how to maintain spool diameter on the steppers? as cable winds up then the diameter increases unless a capstan of some sort is utilized, There is a nicely engineered solution here: http://www.youtube.com/watch?v=RCa8uDFzbsw -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Own the Future-Intelreg; Level Up Game Demo Contest 2013 Rise to greatness in Intel's independent game demo contest. Compete for recognition, cash, and the chance to get your game on Steam. $5K grand prize plus 10 genre and skill prizes. Submit your demo by 6/6/13. http://p.sf.net/sfu/intel_levelupd2d ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Cable drive for a gas torch pattern follower?
--- On Mon, 3/25/13, jeremy youngs jcyoung...@gmail.com wrote: or cable attached weight so as to have constant tension , my thought is how to maintain spool diameter on the steppers? as cable winds up then the diameter increases unless a capstan of some sort is utilized, Lots of ways to do that. Wrap a few turns in one layer around a drum then past that use a spring loaded roller or weight or zigzag arrangement of pulleys up and down. Whatever it takes to avoid having to adjust for changing amount of pull per degree of rotation. -- Own the Future-Intelreg; Level Up Game Demo Contest 2013 Rise to greatness in Intel's independent game demo contest. Compete for recognition, cash, and the chance to get your game on Steam. $5K grand prize plus 10 genre and skill prizes. Submit your demo by 6/6/13. http://p.sf.net/sfu/intel_levelupd2d ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Cable drive for a gas torch pattern follower?
I guess the real question is then are you going to do it? if so will you post your results ? i would like to see them i think this could be a very inexpensive solution using small steppere and 1/8 in cable a few scraps lying around and presto a simple plasma cutter :) -- jeremy youngs -- Own the Future-Intelreg; Level Up Game Demo Contest 2013 Rise to greatness in Intel's independent game demo contest. Compete for recognition, cash, and the chance to get your game on Steam. $5K grand prize plus 10 genre and skill prizes. Submit your demo by 6/6/13. http://p.sf.net/sfu/intel_levelupd2d ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Gigabyte GA-E350N Latency numbers
Hi all, I have run the latency test for a Gigabyte GA-350N motherboard. On first boot (ran with glxgears and updating 140 add packages through the system updates): Servo thread Max: 11411ns Base thread Max: 10233ns After turning off power/thermal control in the bios and inserting isolcpus=1: Servo thread Max: 7251ns Base thread Max: 5161ns This is with linuxcnc2.5.2, intel 60Gb ssd, 8Gb ram. Only issue so far is that Ubunto's radion drivers haven't picked up the video chipset so X is using the VESA drivers. James -- Own the Future-Intelreg; Level Up Game Demo Contest 2013 Rise to greatness in Intel's independent game demo contest. Compete for recognition, cash, and the chance to get your game on Steam. $5K grand prize plus 10 genre and skill prizes. Submit your demo by 6/6/13. http://p.sf.net/sfu/intel_levelupd2d ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Cable drive for a gas torch pattern follower?
--- On Mon, 3/25/13, jeremy youngs jcyoung...@gmail.com wrote: I guess the real question is then are you going to do it? if so will you post your results ? i would like to see them i think this could be a very inexpensive solution using small steppere and 1/8 in cable a few scraps lying around and presto a simple plasma cutter :) Need to figure out the hardware required and cost. Yeah, old obsolete pattern follower torches - suddenly becoming sought after for CNC plasma cutter conversion. ;-) Now I'm thinking it needs a semi-active tension system using a computer controlled 3rd motor but with a spring so it doesn't have to be super precise in following the two 'rigidly' (in tension) connected to the end of the arm. I wonder how this would handle a water jet, would have to strengthen/accurize the arm pivots. -- Own the Future-Intelreg; Level Up Game Demo Contest 2013 Rise to greatness in Intel's independent game demo contest. Compete for recognition, cash, and the chance to get your game on Steam. $5K grand prize plus 10 genre and skill prizes. Submit your demo by 6/6/13. http://p.sf.net/sfu/intel_levelupd2d ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Cable drive for a gas torch pattern follower?
On 26 March 2013 00:48, Gregg Eshelman g_ala...@yahoo.com wrote: Now I'm thinking it needs a semi-active tension system using a computer controlled 3rd motor but with a spring so it doesn't have to be super precise You could just run a DC or brushless motor at a constant current on the third drum, and simply not worry about its position. But if you are going to have the third motor, and its controller, than making it an active part of the system is only software, so free. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Own the Future-Intelreg; Level Up Game Demo Contest 2013 Rise to greatness in Intel's independent game demo contest. Compete for recognition, cash, and the chance to get your game on Steam. $5K grand prize plus 10 genre and skill prizes. Submit your demo by 6/6/13. http://p.sf.net/sfu/intel_levelupd2d ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Cable drive for a gas torch pattern follower?
http://www.ebay.com/itm/3Axis-Nema-23-Stepper-Motor-425oz-in-CNC-Mill-Controller-SD-2H044MA-driver-/130835449799?pt=LH_DefaultDomain_0hash=item1e766687c7 i like the idea of using a capstan with offsetting weight , if you use 2 motors for x,y then use the same weight in tension the motors will see nothing but frictional resistance . If your capstan is sufficently large you should see very good accel and top feed rates , i think you could do this for less than 500 easily -- jeremy youngs -- Own the Future-Intelreg; Level Up Game Demo Contest 2013 Rise to greatness in Intel's independent game demo contest. Compete for recognition, cash, and the chance to get your game on Steam. $5K grand prize plus 10 genre and skill prizes. Submit your demo by 6/6/13. http://p.sf.net/sfu/intel_levelupd2d ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Cable drive for a gas torch pattern follower?
How about just using some air cylinders to pull your counter balance cables. - Original Message - On 26 March 2013 00:48, Gregg Eshelman g_ala...@yahoo.com wrote: Now I'm thinking it needs a semi-active tension system using a computer controlled 3rd motor but with a spring so it doesn't have to be super precise You could just run a DC or brushless motor at a constant current on the third drum, and simply not worry about its position. But if you are going to have the third motor, and its controller, than making it an active part of the system is only software, so free. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Own the Future-Intelreg; Level Up Game Demo Contest 2013 Rise to greatness in Intel's independent game demo contest. Compete for recognition, cash, and the chance to get your game on Steam. $5K grand prize plus 10 genre and skill prizes. Submit your demo by 6/6/13. http://p.sf.net/sfu/intel_levelupd2d ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Todd Zuercher mailto:zuerc...@embarqmail.com -- Own the Future-Intelreg; Level Up Game Demo Contest 2013 Rise to greatness in Intel's independent game demo contest. Compete for recognition, cash, and the chance to get your game on Steam. $5K grand prize plus 10 genre and skill prizes. Submit your demo by 6/6/13. http://p.sf.net/sfu/intel_levelupd2d ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Cable drive for a gas torch pattern follower?
On 26 March 2013 00:59, jeremy youngs jcyoung...@gmail.com wrote: i like the idea of using a capstan with offsetting weight , if you use 2 motors for x,y then use the same weight in tension the motors will see nothing but frictional resistance . If your capstan is sufficently large you should see very good accel and top feed rates , I am not sure you will see good acceleration. In fact, it is always going to be less than 1g. This is because for any faster acceleration the strings go slack as the weighs don't fall fast enough. I think bicycle chain might be the thing to use for the string. I think that a grooved drum, sat on a spline and free to slide vertically could be guided by a wheel engaged in the groove. As an alternative to the spline, it could be driven by a toothed-belt pulley several times wider than the belt. Or (thinking out loud) a square drive-shaft in the middle of the drum and some ball-bearings to drive it. (4 of the ever-popular V-groove style) -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Own the Future-Intelreg; Level Up Game Demo Contest 2013 Rise to greatness in Intel's independent game demo contest. Compete for recognition, cash, and the chance to get your game on Steam. $5K grand prize plus 10 genre and skill prizes. Submit your demo by 6/6/13. http://p.sf.net/sfu/intel_levelupd2d ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Cable drive for a gas torch pattern follower?
On 26 March 2013 01:07, Todd Zuercher zuerc...@embarqmail.com wrote: How about just using some air cylinders to pull your counter balance cables. That would work, and with a set of pulleys (like a 4:1 block-and-tackle) the travel could be only a fraction of the total string length. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Own the Future-Intelreg; Level Up Game Demo Contest 2013 Rise to greatness in Intel's independent game demo contest. Compete for recognition, cash, and the chance to get your game on Steam. $5K grand prize plus 10 genre and skill prizes. Submit your demo by 6/6/13. http://p.sf.net/sfu/intel_levelupd2d ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Cable drive for a gas torch pattern follower?
Andy said I am not sure you will see good acceleration. In fact, it is always going to be less than 1g. This is because for any faster acceleration the strings go slack as the weighs don't fall fast enough. jeremy bounces head of keyboard realizes his stupidity and pays homa ge :) whats that homer simpson says ?? doh thanx for the correction andy -- jeremy youngs -- Own the Future-Intelreg; Level Up Game Demo Contest 2013 Rise to greatness in Intel's independent game demo contest. Compete for recognition, cash, and the chance to get your game on Steam. $5K grand prize plus 10 genre and skill prizes. Submit your demo by 6/6/13. http://p.sf.net/sfu/intel_levelupd2d ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Cable drive for a gas torch pattern follower?
--- On Mon, 3/25/13, andy pugh bodge...@gmail.com wrote: I am not sure you will see good acceleration. In fact, it is always going to be less than 1g. This is because for any faster acceleration the strings go slack as the weighs don't fall fast enough. No need to go anywhere near that fast because an oxy-acetylene torch or plasma cutter can't cut that fast. This rig is most often used for cutting steel 3/4 thick or thicker. -- Own the Future-Intelreg; Level Up Game Demo Contest 2013 Rise to greatness in Intel's independent game demo contest. Compete for recognition, cash, and the chance to get your game on Steam. $5K grand prize plus 10 genre and skill prizes. Submit your demo by 6/6/13. http://p.sf.net/sfu/intel_levelupd2d ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
