Re: [Emc-users] Little OT, but...
On Sun, Mar 2, 2014 at 12:30 PM, W. Martinjak mats...@play-pla.net wrote: On 2014-03-02 14:20, Mark Wendt wrote: In my other recent reply I mentioned my security concerns. These small, light weight web servers just don't seem to have much security built into them. Yes, SSL is a good thing, but that only encrypts that single data stream, while not really securing the server itself. Even full-blown web servers running Apache can be broken into if they aren't configured correctly, and that previous link that was posted for that small python web server didn't leave me with a good basis for presuming the web server was secure, or could easily be made so by the user. I'm just not thrilled with the idea of running a web server on a machine that's controlling a big hunk of heavy, fast moving metal that can do damage (and lots of it) by someone on the outside with mischief or malicious intent on their mind. Once somebody's in your network, and if they've gotten that far there's a decent chance they can get on your controller machine, who's to say they couldn't wreak havoc with an unsecure web server which is one of the easiest things to hack into? I ain't buying the idea that it's a good thing to introduce into this kind of environment. For security and safety reasons. Mark Wow! This is the FUD of the year. And mentioning of theUS Navy (some posts above) in this context scratches slightly on a chutzpah... ...sigh! Sigh. No, it's not FUD. It's over 20 years of system and network administration running big iron network servers, from file servers, to web servers to mail servers and so on. Developers tend to look at the WOW, look what I can do! side of the house, while us system administrators must live in the real world and pick up the pieces from the WOW projects. The US Navy is where I work now. I've also worked out in the civilian world doing the same thing. There are plenty of instances in the last few months alone of web sites from supposedly secure installations being hacked. Does the name Target ring a bell? You can do what you want with your machines and your network. For me, I'll leave the server stuff on the servers, and the work machines running the minimum of software necessary for the task. Mark -- Subversion Kills Productivity. Get off Subversion Make the Move to Perforce. With Perforce, you get hassle-free workflows. Merge that actually works. Faster operations. Version large binaries. Built-in WAN optimization and the freedom to use Git, Perforce or both. Make the move to Perforce. http://pubads.g.doubleclick.net/gampad/clk?id=122218951iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Little OT, but...
On Sun, Mar 2, 2014 at 1:59 PM, Gene Heskett ghesk...@wdtv.com wrote: I do have such a setup out in the shop building, and have had a fully bridged AP setup there, basically so I wouldn't have to string an almost too short piece of cat5 from the hub to a teeny little table the lappy lives on when I need to sit down and write some gcode by ssh -Y into one of the machine controllers. At any one time, I have one of those pocket wifi sniffers that can see a half a dozen similar routers scattered about my neighborhood. In 5 or 6 years, I have had one outside signal come into the system and go on out on the internet, apparently uninterested or un-aware of the extent of my local network. No clue if he was watching porn or what, but I reached into the router and disabled the radio, then setup a WPA2/AES login with a loong passphrase, and have had no further trouble. However, trying to get that same security model setup in the Mint14 that is currently on the lappy, I am back to using the short cat5, stretched across the front of the machines and definitely in harms way. I understand Mint16 is out now, and maybe it has a smarter wpa_supplicant that can do that security, because the cable really is a PIMA. So, my one breakin was benign in its effect on me other than hogging some bandwidth. Gene, Security by obscurity was once a valid technique. Still may be effective if you live way out in the sticks. However, anybody with a car, a laptop, and a wireless network sniffer can latch on to a wireless network that's either unprotected, or lightly protected. My machine controller is hardwired into a full copper network. Someone trying to get into the machine must first breach two firewalls, one on the router and one inside the network, and networking must be turned on the machine controller in order for someone to get even a chance at running a port mapper against it. Maybe I'm being paranoid, but I watch attack attempts from all over the world at work on a daily basis run against blocks of addresses. You're not really paranoid if they are out to get ya... ;-) Mark -- Subversion Kills Productivity. Get off Subversion Make the Move to Perforce. With Perforce, you get hassle-free workflows. Merge that actually works. Faster operations. Version large binaries. Built-in WAN optimization and the freedom to use Git, Perforce or both. Make the move to Perforce. http://pubads.g.doubleclick.net/gampad/clk?id=122218951iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Little OT, but...
On Sun, Mar 2, 2014 at 3:05 PM, Jon Elson el...@pico-systems.com wrote: The most successful thing I found was denyhosts. It used to be an outside package you had to compile, now it is a standard package you can install. It checks the logs for login failures by source IP address, and after a settable number of failures from one IP, it puts that IP on the hosts.deny list. To the outside, it is as if your machine just went offline. It was VERRRY instructive to see what the botnets did with this. They intelligently probed from different machines to see what the timeout horizon of the blocking was. When they found out it was over 2 weeks, the botnets just quit trying! So, they keep a list of tough sites somewhere, and I got myself onto that. I went from 1000+ attempts a day down to 3, in 2 weeks. (By the way, my horizon is set to 6 MONTHS! If they are hackers, they can just leave me alone forever.) Jon Jon, You're describing TCP Wrappers to a tee. Use hosts.deny and put ALL : ALL in it, then use hosts.allow and allow only the machines you want and what services you want those machines to have access to. Of course, this does require the service be wrapped. Mark -- Subversion Kills Productivity. Get off Subversion Make the Move to Perforce. With Perforce, you get hassle-free workflows. Merge that actually works. Faster operations. Version large binaries. Built-in WAN optimization and the freedom to use Git, Perforce or both. Make the move to Perforce. http://pubads.g.doubleclick.net/gampad/clk?id=122218951iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Little OT, but...
On Sun, Mar 2, 2014 at 3:26 PM, Gene Heskett ghesk...@wdtv.com wrote: Yup, but with DD-WRT watching the door, they never get close enough to this or any machine on my network to make an entry in the denyhosts log. Portsentry is another such very useful tool, check it out. Cheers, Gene -- No firewall is perfect though. The object of the game is to make it hard enough for the probers to get in that they give up and go someplace else. Mark -- Subversion Kills Productivity. Get off Subversion Make the Move to Perforce. With Perforce, you get hassle-free workflows. Merge that actually works. Faster operations. Version large binaries. Built-in WAN optimization and the freedom to use Git, Perforce or both. Make the move to Perforce. http://pubads.g.doubleclick.net/gampad/clk?id=122218951iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Little OT, but...
On Sun, Mar 2, 2014 at 3:30 PM, Sven Wesley svenne.d...@gmail.com wrote: Yeah, it really looks like I opened a sensitive can of worms. I seriously doubt anyone here have the expectancy to run a CNC machine on an open network. But on the other nothing surprises me anymore. Talking telnet down as a security issue and at the same time talk *about*security and bring in web sockets, a Python web server and Node.js is at least to me really, really clashing. I seems to me that we simply have different point of views when it comes to security. /Sven Yup. And how many users out there actually secure their network, or just put their router, fresh out of the box, up on the network and let 'er rip? Mark -- Subversion Kills Productivity. Get off Subversion Make the Move to Perforce. With Perforce, you get hassle-free workflows. Merge that actually works. Faster operations. Version large binaries. Built-in WAN optimization and the freedom to use Git, Perforce or both. Make the move to Perforce. http://pubads.g.doubleclick.net/gampad/clk?id=122218951iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Little OT, but...
On Sun, Mar 2, 2014 at 4:07 PM, W. Martinjak mats...@play-pla.net wrote: On 2014-03-02 21:30, Sven Wesley wrote: Talking telnet down as a security issue and at the same time talk *about*security and bring in web sockets, a Python web server and Node.js is at Please undeceive me. What is on a http server per se unsecure ? No matter if it is coded in python, javascript, c/c++ or what ever. BTW, telnet is a remote shell. It has been made for executing commands on a remote computer. Can you hear the bing? Matsche Every web server uses ports and sockets that are open to the world if placed on a network, which is the obvious point in running a web server. There are various ways of attacking those ports and sockets to gain access to the underlying system. It doesn't matter what it's coded in, though in some cases, with poor coding, it may be less secure. Telnet is not a remote shell. Telnet is a network application the transmits and receives IP packets in clear text and connects to a network service on a remote host. You can telnet to any open port on a remote machine, and talk to that port. Mark -- Subversion Kills Productivity. Get off Subversion Make the Move to Perforce. With Perforce, you get hassle-free workflows. Merge that actually works. Faster operations. Version large binaries. Built-in WAN optimization and the freedom to use Git, Perforce or both. Make the move to Perforce. http://pubads.g.doubleclick.net/gampad/clk?id=122218951iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Little OT, but...
On Sun, Mar 2, 2014 at 11:16 PM, Jon Elson el...@pico-systems.com wrote: On 03/02/2014 02:26 PM, Gene Heskett wrote: Yup, but with DD-WRT watching the door, they never get close enough to this or any machine on my network to make an entry in the denyhosts log. Portsentry is another such very useful tool, check it out. It depends on your needs for access to the machine. I have an e-mail server (smtp), an ssh server, web server and primary DNS server on the machine. I may need to log in via ssh from odd locations from time to time. So, I need to have a number of ports open, yet still be secure. This has been running for several years with no successful attack. Very few people even try anymore. Jon Jon, But is that your machine controller? Mark -- Subversion Kills Productivity. Get off Subversion Make the Move to Perforce. With Perforce, you get hassle-free workflows. Merge that actually works. Faster operations. Version large binaries. Built-in WAN optimization and the freedom to use Git, Perforce or both. Make the move to Perforce. http://pubads.g.doubleclick.net/gampad/clk?id=122218951iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Printrboard and LinuxCNC
On Sun, Mar 2, 2014 at 8:35 PM, Steve Blackmore st...@pilotltd.net wrote: On Sun, 2 Mar 2014 07:17:32 -0500, you wrote: Leave it to Windoze to turn off important hardware. About the only time that should apply is on a laptop when not plugged in or docked. If that's a default setting, that's just stupid. Yup How do they implement wake-on-lan if they power down the ethernet? Dunno - WOL is bios level stuff. Power down ethernet is OS crap. Another reason to use Unix/Linux as your operating system. .. it has its quirks too - mainly because OEM's never consider it. Steve Blackmore Linux/Unix may have it's quirks, but I've yet to see a distribution that installs with powering off necessary hardware as the default. Mark -- Subversion Kills Productivity. Get off Subversion Make the Move to Perforce. With Perforce, you get hassle-free workflows. Merge that actually works. Faster operations. Version large binaries. Built-in WAN optimization and the freedom to use Git, Perforce or both. Make the move to Perforce. http://pubads.g.doubleclick.net/gampad/clk?id=122218951iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Little OT, but...
My statement for this OT discussion about security of pc's internet connection is to stop it because it leads to nowhere. Nobody will change his own position and it is unnecessary work for me to delete all these useless messages in my email client. ;) Ciao, Rainer -- Subversion Kills Productivity. Get off Subversion Make the Move to Perforce. With Perforce, you get hassle-free workflows. Merge that actually works. Faster operations. Version large binaries. Built-in WAN optimization and the freedom to use Git, Perforce or both. Make the move to Perforce. http://pubads.g.doubleclick.net/gampad/clk?id=122218951iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Little OT, but...
On 2014-03-03 14:17, Mark Wendt wrote: Every web server uses ports and sockets that are open to the world if placed on a network, which is the obvious point in running a web server. There are various ways of attacking those ports and sockets to gain access to the underlying system. It doesn't matter what it's coded in, though in some cases, with poor coding, it may be less secure. Telnet is not a remote shell. Telnet is a network application the transmits and receives IP packets in clear text and connects to a network service on a remote host. You can telnet to any open port on a remote machine, and talk to that port. Yes, networking is the worst thing in this evil world. What you said is your job? It sounds like a cleaner grouching over the dirtiness. Warning is ok, but this is creating scare. matsche -- In der Wissenschaft siegt nie eine neue Theorie, nur ihre Gegner sterben nach und nach Max Planck -- Subversion Kills Productivity. Get off Subversion Make the Move to Perforce. With Perforce, you get hassle-free workflows. Merge that actually works. Faster operations. Version large binaries. Built-in WAN optimization and the freedom to use Git, Perforce or both. Make the move to Perforce. http://pubads.g.doubleclick.net/gampad/clk?id=122218951iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Little OT, but...
On Mon, Mar 3, 2014 at 8:30 AM, Fox Mulder quakem...@gmx.net wrote: My statement for this OT discussion about security of pc's internet connection is to stop it because it leads to nowhere. Nobody will change his own position and it is unnecessary work for me to delete all these useless messages in my email client. ;) Ciao, Rainer I hardly think a security discussion about software loaded on the machine that talks to the machine controller is off topic. Mark -- Subversion Kills Productivity. Get off Subversion Make the Move to Perforce. With Perforce, you get hassle-free workflows. Merge that actually works. Faster operations. Version large binaries. Built-in WAN optimization and the freedom to use Git, Perforce or both. Make the move to Perforce. http://pubads.g.doubleclick.net/gampad/clk?id=122218951iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Little OT, but...
This works well and is an excellent example and could be useful as is for a remote DRO display. One thing that differed from your instructions was that this line: sudo apt-get install setuptools did not work as no package was found However it appeared that the previous command: sudo apt-get install python-pip may have installed the setuptools I ran it on the local PC browser that already had LinuxCNC installed running on Ubuntu 12.04, and it works fine and is very fast. The PC was plugged into my home network that has a wireless router attached. I pointed a Nexus 7 tablet running firefox at the LinuxCNC PC and the DROs display nicely on it and the update is very fast. Much faster than I expected. I installed Apache prior to loading your example, thinking that was required, but Cherrypy is a web server itself, which I did not realize, and Apache is not doing anything. Very nice. Thanks, Dave On 2/28/2014 4:07 PM, W. Martinjak wrote: This is no rocket science. Some weeks ago I've made some tries with websockets. https://github.com/tinkercnc/LinuxCNC2Websocket It should work with all modern browsers. Questions are welcome. Matsche On 2014-02-25 19:32, Sven Wesley wrote: It would be pretty awesome to read the DRO data from LinuxCNC... :) 2014-02-25 15:27 GMT+01:00 Mark Wendt wendt.m...@gmail.com: Yeah, I thought it was a pretty slick little idea. Mark On Tue, Feb 25, 2014 at 9:20 AM, Dave Cole linuxcncro...@gmail.com wrote: Very cool! Android and the pocket computers/phones/tablets etc have such great potential Thanks for sharing that. Dave - So many ideas ... so little time. On 2/25/2014 8:53 AM, Mark Wendt wrote: A pretty neat project with an Android: http://www.yuriystoys.com/p/android-dro.html Mark -- Flow-based real-time traffic analytics software. Cisco certified tool. Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer Customize your own dashboards, set traffic alerts and generate reports. Network behavioral analysis security monitoring. All-in-one tool. http://pubads.g.doubleclick.net/gampad/clk?id=126839071iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Flow-based real-time traffic analytics software. Cisco certified tool. Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer Customize your own dashboards, set traffic alerts and generate reports. Network behavioral analysis security monitoring. All-in-one tool. http://pubads.g.doubleclick.net/gampad/clk?id=126839071iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Subversion Kills Productivity. Get off Subversion Make the Move to Perforce. With Perforce, you get hassle-free workflows. Merge that actually works. Faster operations. Version large binaries. Built-in WAN optimization and the freedom to use Git, Perforce or both. Make the move to Perforce. http://pubads.g.doubleclick.net/gampad/clk?id=122218951iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Little OT, but...
On Mon, Mar 3, 2014 at 8:31 AM, W. Martinjak mats...@play-pla.net wrote: On 2014-03-03 14:17, Mark Wendt wrote: Every web server uses ports and sockets that are open to the world if placed on a network, which is the obvious point in running a web server. There are various ways of attacking those ports and sockets to gain access to the underlying system. It doesn't matter what it's coded in, though in some cases, with poor coding, it may be less secure. Telnet is not a remote shell. Telnet is a network application the transmits and receives IP packets in clear text and connects to a network service on a remote host. You can telnet to any open port on a remote machine, and talk to that port. Yes, networking is the worst thing in this evil world. What you said is your job? It sounds like a cleaner grouching over the dirtiness. Warning is ok, but this is creating scare. matsche No, networking is not the worst thing in the world. Please don't engage in hyperbole. I'm talking about stuff that I deal with on a day-to-day basis. If you want to run the risk, that's fine with me. It's your machine, do what you wish with it. My machine controller is just that. A machine controller. Not a web server, not a mail server, not a internet browsing machine, just a machine controller. My CAD software, my email client, my web browser, my chat client and everything else resides on a different machine. This one, the one I'm typing this post. If you want to run all that stuff on your machine controller, and are ready to accept the risks inherent in doing that, then go right ahead. I'm just offering my opinion based on years of network and system administration experience. At work, we don't even combine web and mail servers. Each does it's own thing, and each is locked down to the minimum necessary for those individual services that need to run in order for the machine to function in it's role. Mark -- Subversion Kills Productivity. Get off Subversion Make the Move to Perforce. With Perforce, you get hassle-free workflows. Merge that actually works. Faster operations. Version large binaries. Built-in WAN optimization and the freedom to use Git, Perforce or both. Make the move to Perforce. http://pubads.g.doubleclick.net/gampad/clk?id=122218951iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Little OT, but...
On 2014-03-03 14:35, Dave Cole wrote: This works well and is an excellent example and could be useful as is for a remote DRO display. One thing that differed from your instructions was that this line: sudo apt-get install setuptools did not work as no package was found Yes it depends on the distribution and I've made a mistake. It is called python-setuptools mea culpa. However it appeared that the previous command: sudo apt-get install python-pip may have installed the setuptools I ran it on the local PC browser that already had LinuxCNC installed running on Ubuntu 12.04, and it works fine and is very fast. The PC was plugged into my home network that has a wireless router attached. I pointed a Nexus 7 tablet running firefox at the LinuxCNC PC and the DROs display nicely on it and the update is very fast. Much faster than I expected. I installed Apache prior to loading your example, thinking that was required, but Cherrypy is a web server itself, which I did not realize, and Apache is not doing anything. Yes due to the lack of websocket support. This would probably help: https://github.com/disconnect/apache-websocket But it is much more difficult to setup. My instructions was not clear. Sorry. Very nice. Thanks, Dave Thank you for the feedback and testing the tool. :) Matsche -- In der Wissenschaft siegt nie eine neue Theorie, nur ihre Gegner sterben nach und nach Max Planck -- Subversion Kills Productivity. Get off Subversion Make the Move to Perforce. With Perforce, you get hassle-free workflows. Merge that actually works. Faster operations. Version large binaries. Built-in WAN optimization and the freedom to use Git, Perforce or both. Make the move to Perforce. http://pubads.g.doubleclick.net/gampad/clk?id=122218951iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Little OT, but...
On Monday 03 March 2014 09:04:47 Mark Wendt did opine: On Sun, Mar 2, 2014 at 1:59 PM, Gene Heskett ghesk...@wdtv.com wrote: I do have such a setup out in the shop building, and have had a fully bridged AP setup there, basically so I wouldn't have to string an almost too short piece of cat5 from the hub to a teeny little table the lappy lives on when I need to sit down and write some gcode by ssh -Y into one of the machine controllers. At any one time, I have one of those pocket wifi sniffers that can see a half a dozen similar routers scattered about my neighborhood. In 5 or 6 years, I have had one outside signal come into the system and go on out on the internet, apparently uninterested or un-aware of the extent of my local network. No clue if he was watching porn or what, but I reached into the router and disabled the radio, then setup a WPA2/AES login with a loong passphrase, and have had no further trouble. However, trying to get that same security model setup in the Mint14 that is currently on the lappy, I am back to using the short cat5, stretched across the front of the machines and definitely in harms way. I understand Mint16 is out now, and maybe it has a smarter wpa_supplicant that can do that security, because the cable really is a PIMA. So, my one breakin was benign in its effect on me other than hogging some bandwidth. Gene, Security by obscurity was once a valid technique. Still may be effective if you live way out in the sticks. However, anybody with a car, a laptop, and a wireless network sniffer can latch on to a wireless network that's either unprotected, or lightly protected. My machine controller is hardwired into a full copper network. Someone trying to get into the machine must first breach two firewalls, one on the router and one inside the network, and networking must be turned on the machine controller in order for someone to get even a chance at running a port mapper against it. Maybe I'm being paranoid, but I watch attack attempts from all over the world at work on a daily basis run against blocks of addresses. You're not really paranoid if they are out to get ya... ;-) Mark Snirk, but Mark, as far as fancy hackers go, I really am out in the sticks. FWIW, I run awstats on my web server, and am somewhat puzzled as in any one month, I might have 3 or 4 megabytes pulled, and 40% of it goes to Chinese domains. Why? I also have a subdir with 2nd amendment related stuffs... Hey, we all have to do our part don't we? 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) Genes Web page http://geneslinuxbox.net:6309/gene NOTICE: Will pay 100 USD for an HP-4815A defective but complete probe assembly. -- Subversion Kills Productivity. Get off Subversion Make the Move to Perforce. With Perforce, you get hassle-free workflows. Merge that actually works. Faster operations. Version large binaries. Built-in WAN optimization and the freedom to use Git, Perforce or both. Make the move to Perforce. http://pubads.g.doubleclick.net/gampad/clk?id=122218951iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Little OT, but...
On Monday 03 March 2014 09:13:11 Mark Wendt did opine: On Sun, Mar 2, 2014 at 3:26 PM, Gene Heskett ghesk...@wdtv.com wrote: Yup, but with DD-WRT watching the door, they never get close enough to this or any machine on my network to make an entry in the denyhosts log. Portsentry is another such very useful tool, check it out. Cheers, Gene -- No firewall is perfect though. The object of the game is to make it hard enough for the probers to get in that they give up and go someplace else. Mark Exactly. 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) Genes Web page http://geneslinuxbox.net:6309/gene NOTICE: Will pay 100 USD for an HP-4815A defective but complete probe assembly. -- Subversion Kills Productivity. Get off Subversion Make the Move to Perforce. With Perforce, you get hassle-free workflows. Merge that actually works. Faster operations. Version large binaries. Built-in WAN optimization and the freedom to use Git, Perforce or both. Make the move to Perforce. http://pubads.g.doubleclick.net/gampad/clk?id=122218951iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Little OT, but...
On Monday 03 March 2014 09:14:00 Mark Wendt did opine: On Sun, Mar 2, 2014 at 3:30 PM, Sven Wesley svenne.d...@gmail.com wrote: Yeah, it really looks like I opened a sensitive can of worms. I seriously doubt anyone here have the expectancy to run a CNC machine on an open network. But on the other nothing surprises me anymore. Talking telnet down as a security issue and at the same time talk *about*security and bring in web sockets, a Python web server and Node.js is at least to me really, really clashing. I seems to me that we simply have different point of views when it comes to security. /Sven Yup. And how many users out there actually secure their network, or just put their router, fresh out of the box, up on the network and let 'er rip? Mark Most. And some come with very dangerous defaults. 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) Genes Web page http://geneslinuxbox.net:6309/gene NOTICE: Will pay 100 USD for an HP-4815A defective but complete probe assembly. -- Subversion Kills Productivity. Get off Subversion Make the Move to Perforce. With Perforce, you get hassle-free workflows. Merge that actually works. Faster operations. Version large binaries. Built-in WAN optimization and the freedom to use Git, Perforce or both. Make the move to Perforce. http://pubads.g.doubleclick.net/gampad/clk?id=122218951iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Little OT, but...
On Monday 03 March 2014 09:16:47 Mark Wendt did opine: On Mon, Mar 3, 2014 at 8:30 AM, Fox Mulder quakem...@gmx.net wrote: My statement for this OT discussion about security of pc's internet connection is to stop it because it leads to nowhere. Nobody will change his own position and it is unnecessary work for me to delete all these useless messages in my email client. ;) Ciao, Rainer I hardly think a security discussion about software loaded on the machine that talks to the machine controller is off topic. Mark I am with Mark on this. If a method of attack is found that effects us, I damned sure want to know about it and how to mitigate it. Its 100% on topic AFAIAC. 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) Genes Web page http://geneslinuxbox.net:6309/gene NOTICE: Will pay 100 USD for an HP-4815A defective but complete probe assembly. -- Subversion Kills Productivity. Get off Subversion Make the Move to Perforce. With Perforce, you get hassle-free workflows. Merge that actually works. Faster operations. Version large binaries. Built-in WAN optimization and the freedom to use Git, Perforce or both. Make the move to Perforce. http://pubads.g.doubleclick.net/gampad/clk?id=122218951iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Little OT, but...
On Mon, Mar 3, 2014 at 9:12 AM, Gene Heskett ghesk...@wdtv.com wrote: Gene, Security by obscurity was once a valid technique. Still may be effective if you live way out in the sticks. However, anybody with a car, a laptop, and a wireless network sniffer can latch on to a wireless network that's either unprotected, or lightly protected. My machine controller is hardwired into a full copper network. Someone trying to get into the machine must first breach two firewalls, one on the router and one inside the network, and networking must be turned on the machine controller in order for someone to get even a chance at running a port mapper against it. Maybe I'm being paranoid, but I watch attack attempts from all over the world at work on a daily basis run against blocks of addresses. You're not really paranoid if they are out to get ya... ;-) Mark Snirk, but Mark, as far as fancy hackers go, I really am out in the sticks. FWIW, I run awstats on my web server, and am somewhat puzzled as in any one month, I might have 3 or 4 megabytes pulled, and 40% of it goes to Chinese domains. Why? I also have a subdir with 2nd amendment related stuffs... Hey, we all have to do our part don't we? Cheers, Gene Gene, The majority of the attacks we see come from China. Followed by Russia, and other Eastern Block countries like Bulgaria. But far and away the largest number of attacks are Chinese initiated. I see it here too on my home network. Mark -- Subversion Kills Productivity. Get off Subversion Make the Move to Perforce. With Perforce, you get hassle-free workflows. Merge that actually works. Faster operations. Version large binaries. Built-in WAN optimization and the freedom to use Git, Perforce or both. Make the move to Perforce. http://pubads.g.doubleclick.net/gampad/clk?id=122218951iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Little OT, but...
On Mon, Mar 3, 2014 at 9:52 AM, Lester Caine les...@lsces.co.uk wrote: Mark Wendt wrote: No firewall is perfect though. The object of the game is to make it hard enough for the probers to get in that they give up and go someplace else. My CNC machines have a fairly secure firewall ... the only files used are loaded by USB stick and only gcode files are ever loaded. It is bad enough having to cope with the 'improvements' to my Linux desktop which seem to happen every week so I don't want anything to 'improve' a working CNC setup unless *I* am convinced it is useful :) -- Lester Caine - G8HFL I hear ya Lester. About the only updates I allow are for LinuxCNC. I don't need Desktop updates, or much of anything else, I pick and choose the updates when necessary. Mark -- Subversion Kills Productivity. Get off Subversion Make the Move to Perforce. With Perforce, you get hassle-free workflows. Merge that actually works. Faster operations. Version large binaries. Built-in WAN optimization and the freedom to use Git, Perforce or both. Make the move to Perforce. http://pubads.g.doubleclick.net/gampad/clk?id=122218951iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Little OT, but...
As a side-note to this coversation: I met a chap at a conference who had been seeing how many PLCs he could find open on the internet and with the default password. He found that, for example, he could easily shut down the Niagara hydro station, or set off the fire sprinklers in the Bodlean Library. (Both systems are now secured). http://appsecdc.org/eireannleverett/ -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Subversion Kills Productivity. Get off Subversion Make the Move to Perforce. With Perforce, you get hassle-free workflows. Merge that actually works. Faster operations. Version large binaries. Built-in WAN optimization and the freedom to use Git, Perforce or both. Make the move to Perforce. http://pubads.g.doubleclick.net/gampad/clk?id=122218951iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Little OT, but...
On Mon, Mar 3, 2014 at 10:08 AM, andy pugh bodge...@gmail.com wrote: As a side-note to this coversation: I met a chap at a conference who had been seeing how many PLCs he could find open on the internet and with the default password. He found that, for example, he could easily shut down the Niagara hydro station, or set off the fire sprinklers in the Bodlean Library. (Both systems are now secured). http://appsecdc.org/eireannleverett/ -- atp Yeah, interesting, idn't it? But hey, that's just FUD. Mark -- Subversion Kills Productivity. Get off Subversion Make the Move to Perforce. With Perforce, you get hassle-free workflows. Merge that actually works. Faster operations. Version large binaries. Built-in WAN optimization and the freedom to use Git, Perforce or both. Make the move to Perforce. http://pubads.g.doubleclick.net/gampad/clk?id=122218951iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Little OT, but...
On Monday 03 March 2014 11:22:42 Lester Caine did opine: Mark Wendt wrote: No firewall is perfect though. The object of the game is to make it hard enough for the probers to get in that they give up and go someplace else. My CNC machines have a fairly secure firewall ... the only files used are loaded by USB stick and only gcode files are ever loaded. It is bad enough having to cope with the 'improvements' to my Linux desktop which seem to happen every week so I don't want anything to 'improve' a working CNC setup unless *I* am convinced it is useful :) I am on the 2.5.3 branch ATM, and I usually do the updates as soon as update-manager tells me they are available. And nothing in any update has had a detectable regression effect on my machines since I switched back to the 2.5.3 branch. Updates have slowed the last month or so as everybody is working on the next release to be called 2.6.0, but I have probably installed about 75 updates to linuxCNC in the past calendar year without encountering a problem worth noting. They just work(TM). :) YMMV of coarse. 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) Genes Web page http://geneslinuxbox.net:6309/gene NOTICE: Will pay 100 USD for an HP-4815A defective but complete probe assembly. -- Subversion Kills Productivity. Get off Subversion Make the Move to Perforce. With Perforce, you get hassle-free workflows. Merge that actually works. Faster operations. Version large binaries. Built-in WAN optimization and the freedom to use Git, Perforce or both. Make the move to Perforce. http://pubads.g.doubleclick.net/gampad/clk?id=122218951iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Little OT, but...
On 03/03/2014 07:18 AM, Mark Wendt wrote: But is that your machine controller? No, certainly not! But, it IS a LinuxCNC 10.04 install, and I do use it to test boards at my bench. That is mostly a result of physical location in my electronics/computer room, not a real smart choice as it limits kernel choices for the server. But, way too much inertia to change things. Jon -- Subversion Kills Productivity. Get off Subversion Make the Move to Perforce. With Perforce, you get hassle-free workflows. Merge that actually works. Faster operations. Version large binaries. Built-in WAN optimization and the freedom to use Git, Perforce or both. Make the move to Perforce. http://pubads.g.doubleclick.net/gampad/clk?id=122218951iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Little OT, but...
On Mon, Mar 3, 2014 at 11:45 AM, Jon Elson el...@pico-systems.com wrote: On 03/03/2014 07:18 AM, Mark Wendt wrote: But is that your machine controller? No, certainly not! But, it IS a LinuxCNC 10.04 install, and I do use it to test boards at my bench. That is mostly a result of physical location in my electronics/computer room, not a real smart choice as it limits kernel choices for the server. But, way too much inertia to change things. Jon Jon, Having read your postings over a number of years, I didn't think it was your controller. ;-) Mark -- Subversion Kills Productivity. Get off Subversion Make the Move to Perforce. With Perforce, you get hassle-free workflows. Merge that actually works. Faster operations. Version large binaries. Built-in WAN optimization and the freedom to use Git, Perforce or both. Make the move to Perforce. http://pubads.g.doubleclick.net/gampad/clk?id=122218951iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Little OT, but...
On 03/03/2014 10:49 AM, Mark Wendt wrote: Having read your postings over a number of years, I didn't think it was your controller. ;-) Right, we have quite a local network here. I have 6 machines in regular use, and my wife kids have another 4. Plus, there are some other machines that get fired up for special purposes. I have a 24-port Ethernet switch that is over half full! Jon -- Subversion Kills Productivity. Get off Subversion Make the Move to Perforce. With Perforce, you get hassle-free workflows. Merge that actually works. Faster operations. Version large binaries. Built-in WAN optimization and the freedom to use Git, Perforce or both. Make the move to Perforce. http://pubads.g.doubleclick.net/gampad/clk?id=122218951iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Poor CV
One thing I have noticed - with the new TP - the path reaches commanded speed. mach gets close but is usually a few percent under. Take this program steve posted a while back. ( http://electronicsam.com/images/KandT/testing/steve.ngc ) New TP http://imagebin.org/296859 If you calculate it out - it is about 3600mm/min. that is the commanded velocity (following path within .1mm aprox .004) it actually finishes a whole .5 seconds faster ;) With Mach http://imagebin.org/296858 it peaks at about 3300mm/min. sam (having too much fun...) On 2/20/2014 10:37 AM, sam sokolik wrote: Steve! Here is your sample of gcode running the newest TP Original TP http://imagebin.org/294551 (limit of the 1 segment look-ahead) New TP (which does arc-arc , Line-arc and line-line look-ahead.) http://imagebin.org/294550 Robs hard work is awesome! (and it keeps improving) sam On 04/07/2013 05:28 PM, Steve Blackmore wrote: On Sun, 7 Apr 2013 10:21:11 -0500, you wrote: On Sun, Apr 07, 2013 at 10:13:11AM +0100, Steve Blackmore wrote: CV in LinuxCNC still does not work well. Have a look at this http://youtu.be/ph_IVXg1C9Y Please share your gcode and your full config directory. Hi Chris - Here's part of the code - it's obvious early on without all of it. I'll post the config tomorrow - machine is at work. BTW - Changing N190 to N190 G64 P0.5 and it runs better, but that's far too much deviation. This was first reported on 26th July 2011 in a post trying to understand EMC's operation Have a read of that thread for way more information. Daniel Rogge concurs in his tests posted on 29th. I've re posted as this is still occurring since V2.4 ! N100 G0 G21 G17 G90 G40 G49 G80 N110 G91.1 N120 G1 Z20.000 F3600.0 N130 T1 M06 N140 (End Mill {6 mm}) N150 G43H1 Z20.000 N160 S12000 M03 N170(Toolpath:- Profile 1) N180() N190 G64 N200 G1 X0.000 Y0.000 F3600 N210 G0 X-1.974 Y8.147 Z6.000 N220 G1 X-1.974 Y8.147 Z-1.000 F1200.0 N230 G2 X-1.346 Y40.813 I1274.739 J-8.173 F3600.0 N240 G1 X-1.246 Y43.543 Z-1.000 N250 G1 X-1.175 Y44.975 Z-1.000 N260 G2 X0.630 Y65.631 I357.751 J-20.852 N270 G2 X3.629 Y86.169 I356.674 J-41.593 N280 G1 X3.738 Y86.813 Z-1.000 N290 G1 X3.885 Y87.608 Z-1.000 N300 G1 X4.121 Y88.649 Z-1.000 N310 G1 X4.891 Y91.654 Z-1.000 N320 G2 X8.045 Y101.818 I125.643 J-33.412 N330 G2 X12.017 Y111.685 I122.371 J-43.533 N340 G1 X12.167 Y112.021 Z-1.000 N350 G1 X12.392 Y112.507 Z-1.000 N360 G1 X12.836 Y113.360 Z-1.000 N370 G1 X14.404 Y116.145 Z-1.000 N380 G2 X48.101 Y150.602 I84.920 J-49.341 N390 G2 X94.143 Y164.886 I51.247 J-83.839 N400 G1 X98.585 Y165.027 Z-1.000 N410 G2 X107.856 Y164.832 I1.550 J-146.800 N420 G1 X114.650 Y164.312 Z-1.000 N430 G1 X121.416 Y163.467 Z-1.000 N440 G1 X124.191 Y163.060 Z-1.000 N450 G1 X127.048 Y162.615 Z-1.000 N460 G2 X139.931 Y159.885 I-25.733 J-153.243 N470 G2 X152.544 Y156.073 I-38.655 J-150.662 N480 G1 X157.534 Y154.334 Z-1.000 N490 G1 X161.108 Y153.062 Z-1.000 N500 G2 X183.667 Y143.969 I-122.738 J-337.027 N510 G2 X205.551 Y133.371 I-145.209 J-327.734 N520 G1 X207.732 Y132.276 Z-1.000 N530 G1 X215.815 Y128.556 Z-1.000 N540 G1 X219.037 Y127.150 Z-1.000 N550 G1 X222.272 Y125.782 Z-1.000 N560 G1 X223.416 Y125.300 Z-1.000 N570 G1 X223.904 Y125.085 Z-1.000 N580 G3 X237.774 Y120.073 I38.168 J83.912 N590 G3 X252.272 Y117.334 I24.318 J88.999 N600 G1 X253.479 Y117.248 Z-1.000 Steve Blackmore -- -- Minimize network downtime and maximize team effectiveness. Reduce network management and security costs.Learn how to hire the most talented Cisco Certified professionals. Visit the Employer Resources Portal http://www.cisco.com/web/learning/employer_resources/index.html ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Managing the Performance of Cloud-Based Applications Take advantage of what the Cloud has to offer - Avoid Common Pitfalls. Read the Whitepaper. http://pubads.g.doubleclick.net/gampad/clk?id=121054471iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Subversion Kills Productivity. Get off Subversion Make the Move to Perforce. With Perforce, you get hassle-free workflows. Merge that actually works. Faster operations. Version large binaries. Built-in WAN optimization and the freedom to use Git, Perforce or both. Make the move to Perforce. http://pubads.g.doubleclick.net/gampad/clk?id=122218951iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net
Re: [Emc-users] Poor CV
Have you tried the new tp with g41/g42? Im sure it wont matter but just in case... Terry One thing I have noticed - with the new TP - the path reaches commanded speed. mach gets close but is usually a few percent under. Take this program steve posted a while back. ( http://electronicsam.com/images/KandT/testing/steve.ngc ) New TP http://imagebin.org/296859 If you calculate it out - it is about 3600mm/min. that is the commanded velocity (following path within .1mm aprox .004) it actually finishes a whole .5 seconds faster ;) With Mach http://imagebin.org/296858 it peaks at about 3300mm/min. sam (having too much fun...) On 2/20/2014 10:37 AM, sam sokolik wrote: Steve! Here is your sample of gcode running the newest TP Original TP http://imagebin.org/294551 (limit of the 1 segment look-ahead) New TP (which does arc-arc , Line-arc and line-line look-ahead.) http://imagebin.org/294550 Robs hard work is awesome! (and it keeps improving) sam On 04/07/2013 05:28 PM, Steve Blackmore wrote: On Sun, 7 Apr 2013 10:21:11 -0500, you wrote: On Sun, Apr 07, 2013 at 10:13:11AM +0100, Steve Blackmore wrote: CV in LinuxCNC still does not work well. Have a look at this http://youtu.be/ph_IVXg1C9Y Please share your gcode and your full config directory. Hi Chris - Here's part of the code - it's obvious early on without all of it. I'll post the config tomorrow - machine is at work. BTW - Changing N190 to N190 G64 P0.5 and it runs better, but that's far too much deviation. This was first reported on 26th July 2011 in a post trying to understand EMC's operation Have a read of that thread for way more information. Daniel Rogge concurs in his tests posted on 29th. I've re posted as this is still occurring since V2.4 ! N100 G0 G21 G17 G90 G40 G49 G80 N110 G91.1 N120 G1 Z20.000 F3600.0 N130 T1 M06 N140 (End Mill {6 mm}) N150 G43H1 Z20.000 N160 S12000 M03 N170(Toolpath:- Profile 1) N180() N190 G64 N200 G1 X0.000 Y0.000 F3600 N210 G0 X-1.974 Y8.147 Z6.000 N220 G1 X-1.974 Y8.147 Z-1.000 F1200.0 N230 G2 X-1.346 Y40.813 I1274.739 J-8.173 F3600.0 N240 G1 X-1.246 Y43.543 Z-1.000 N250 G1 X-1.175 Y44.975 Z-1.000 N260 G2 X0.630 Y65.631 I357.751 J-20.852 N270 G2 X3.629 Y86.169 I356.674 J-41.593 N280 G1 X3.738 Y86.813 Z-1.000 N290 G1 X3.885 Y87.608 Z-1.000 N300 G1 X4.121 Y88.649 Z-1.000 N310 G1 X4.891 Y91.654 Z-1.000 N320 G2 X8.045 Y101.818 I125.643 J-33.412 N330 G2 X12.017 Y111.685 I122.371 J-43.533 N340 G1 X12.167 Y112.021 Z-1.000 N350 G1 X12.392 Y112.507 Z-1.000 N360 G1 X12.836 Y113.360 Z-1.000 N370 G1 X14.404 Y116.145 Z-1.000 N380 G2 X48.101 Y150.602 I84.920 J-49.341 N390 G2 X94.143 Y164.886 I51.247 J-83.839 N400 G1 X98.585 Y165.027 Z-1.000 N410 G2 X107.856 Y164.832 I1.550 J-146.800 N420 G1 X114.650 Y164.312 Z-1.000 N430 G1 X121.416 Y163.467 Z-1.000 N440 G1 X124.191 Y163.060 Z-1.000 N450 G1 X127.048 Y162.615 Z-1.000 N460 G2 X139.931 Y159.885 I-25.733 J-153.243 N470 G2 X152.544 Y156.073 I-38.655 J-150.662 N480 G1 X157.534 Y154.334 Z-1.000 N490 G1 X161.108 Y153.062 Z-1.000 N500 G2 X183.667 Y143.969 I-122.738 J-337.027 N510 G2 X205.551 Y133.371 I-145.209 J-327.734 N520 G1 X207.732 Y132.276 Z-1.000 N530 G1 X215.815 Y128.556 Z-1.000 N540 G1 X219.037 Y127.150 Z-1.000 N550 G1 X222.272 Y125.782 Z-1.000 N560 G1 X223.416 Y125.300 Z-1.000 N570 G1 X223.904 Y125.085 Z-1.000 N580 G3 X237.774 Y120.073 I38.168 J83.912 N590 G3 X252.272 Y117.334 I24.318 J88.999 N600 G1 X253.479 Y117.248 Z-1.000 Steve Blackmore -- -- Minimize network downtime and maximize team effectiveness. Reduce network management and security costs.Learn how to hire the most talented Cisco Certified professionals. Visit the Employer Resources Portal http://www.cisco.com/web/learning/employer_resources/index.html ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Managing the Performance of Cloud-Based Applications Take advantage of what the Cloud has to offer - Avoid Common Pitfalls. Read the Whitepaper. http://pubads.g.doubleclick.net/gampad/clk?id=121054471iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Subversion Kills Productivity. Get off Subversion Make the Move to Perforce. With Perforce, you get hassle-free workflows. Merge that actually works. Faster operations. Version large binaries. Built-in WAN optimization and the freedom to use Git, Perforce or both. Make the move to Perforce. http://pubads.g.doubleclick.net/gampad/clk?id=122218951iu=/4140/ostg.clktrk
Re: [Emc-users] Poor CV
Terry, that's a good idea. I suspect G41/G42 won't affect much since the offsets are applied before the path is sent to the motion module, but it would be nice to be sure. Do you have a program handy that use G41/42 extensively? If so, I'd be happy to add it to the tests I run. -Rob On Mon, Mar 3, 2014 at 7:54 PM, TERRY Christophersen tcninj...@gmail.comwrote: Have you tried the new tp with g41/g42? Im sure it wont matter but just in case... Terry One thing I have noticed - with the new TP - the path reaches commanded speed. mach gets close but is usually a few percent under. Take this program steve posted a while back. ( http://electronicsam.com/images/KandT/testing/steve.ngc ) New TP http://imagebin.org/296859 If you calculate it out - it is about 3600mm/min. that is the commanded velocity (following path within .1mm aprox .004) it actually finishes a whole .5 seconds faster ;) With Mach http://imagebin.org/296858 it peaks at about 3300mm/min. sam (having too much fun...) On 2/20/2014 10:37 AM, sam sokolik wrote: Steve! Here is your sample of gcode running the newest TP Original TP http://imagebin.org/294551 (limit of the 1 segment look-ahead) New TP (which does arc-arc , Line-arc and line-line look-ahead.) http://imagebin.org/294550 Robs hard work is awesome! (and it keeps improving) sam On 04/07/2013 05:28 PM, Steve Blackmore wrote: On Sun, 7 Apr 2013 10:21:11 -0500, you wrote: On Sun, Apr 07, 2013 at 10:13:11AM +0100, Steve Blackmore wrote: CV in LinuxCNC still does not work well. Have a look at this http://youtu.be/ph_IVXg1C9Y Please share your gcode and your full config directory. Hi Chris - Here's part of the code - it's obvious early on without all of it. I'll post the config tomorrow - machine is at work. BTW - Changing N190 to N190 G64 P0.5 and it runs better, but that's far too much deviation. This was first reported on 26th July 2011 in a post trying to understand EMC's operation Have a read of that thread for way more information. Daniel Rogge concurs in his tests posted on 29th. I've re posted as this is still occurring since V2.4 ! N100 G0 G21 G17 G90 G40 G49 G80 N110 G91.1 N120 G1 Z20.000 F3600.0 N130 T1 M06 N140 (End Mill {6 mm}) N150 G43H1 Z20.000 N160 S12000 M03 N170(Toolpath:- Profile 1) N180() N190 G64 N200 G1 X0.000 Y0.000 F3600 N210 G0 X-1.974 Y8.147 Z6.000 N220 G1 X-1.974 Y8.147 Z-1.000 F1200.0 N230 G2 X-1.346 Y40.813 I1274.739 J-8.173 F3600.0 N240 G1 X-1.246 Y43.543 Z-1.000 N250 G1 X-1.175 Y44.975 Z-1.000 N260 G2 X0.630 Y65.631 I357.751 J-20.852 N270 G2 X3.629 Y86.169 I356.674 J-41.593 N280 G1 X3.738 Y86.813 Z-1.000 N290 G1 X3.885 Y87.608 Z-1.000 N300 G1 X4.121 Y88.649 Z-1.000 N310 G1 X4.891 Y91.654 Z-1.000 N320 G2 X8.045 Y101.818 I125.643 J-33.412 N330 G2 X12.017 Y111.685 I122.371 J-43.533 N340 G1 X12.167 Y112.021 Z-1.000 N350 G1 X12.392 Y112.507 Z-1.000 N360 G1 X12.836 Y113.360 Z-1.000 N370 G1 X14.404 Y116.145 Z-1.000 N380 G2 X48.101 Y150.602 I84.920 J-49.341 N390 G2 X94.143 Y164.886 I51.247 J-83.839 N400 G1 X98.585 Y165.027 Z-1.000 N410 G2 X107.856 Y164.832 I1.550 J-146.800 N420 G1 X114.650 Y164.312 Z-1.000 N430 G1 X121.416 Y163.467 Z-1.000 N440 G1 X124.191 Y163.060 Z-1.000 N450 G1 X127.048 Y162.615 Z-1.000 N460 G2 X139.931 Y159.885 I-25.733 J-153.243 N470 G2 X152.544 Y156.073 I-38.655 J-150.662 N480 G1 X157.534 Y154.334 Z-1.000 N490 G1 X161.108 Y153.062 Z-1.000 N500 G2 X183.667 Y143.969 I-122.738 J-337.027 N510 G2 X205.551 Y133.371 I-145.209 J-327.734 N520 G1 X207.732 Y132.276 Z-1.000 N530 G1 X215.815 Y128.556 Z-1.000 N540 G1 X219.037 Y127.150 Z-1.000 N550 G1 X222.272 Y125.782 Z-1.000 N560 G1 X223.416 Y125.300 Z-1.000 N570 G1 X223.904 Y125.085 Z-1.000 N580 G3 X237.774 Y120.073 I38.168 J83.912 N590 G3 X252.272 Y117.334 I24.318 J88.999 N600 G1 X253.479 Y117.248 Z-1.000 Steve Blackmore -- -- Minimize network downtime and maximize team effectiveness. Reduce network management and security costs.Learn how to hire the most talented Cisco Certified professionals. Visit the Employer Resources Portal http://www.cisco.com/web/learning/employer_resources/index.html ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Managing the Performance of Cloud-Based Applications Take advantage of what the Cloud has to offer - Avoid Common Pitfalls. Read the Whitepaper. http://pubads.g.doubleclick.net/gampad/clk?id=121054471iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net
Re: [Emc-users] Poor CV
I can send one but will be tomorrow.I have one that cuts the outside of a 6in gear it has many transitions between G2-G3 so should be a good test. Terry On Mar 3, 2014 8:34 PM, Robert Ellenberg rwe...@gmail.com wrote: Terry, that's a good idea. I suspect G41/G42 won't affect much since the offsets are applied before the path is sent to the motion module, but it would be nice to be sure. Do you have a program handy that use G41/42 extensively? If so, I'd be happy to add it to the tests I run. -Rob On Mon, Mar 3, 2014 at 7:54 PM, TERRY Christophersen tcninj...@gmail.com wrote: Have you tried the new tp with g41/g42? Im sure it wont matter but just in case... Terry One thing I have noticed - with the new TP - the path reaches commanded speed. mach gets close but is usually a few percent under. Take this program steve posted a while back. ( http://electronicsam.com/images/KandT/testing/steve.ngc ) New TP http://imagebin.org/296859 If you calculate it out - it is about 3600mm/min. that is the commanded velocity (following path within .1mm aprox .004) it actually finishes a whole .5 seconds faster ;) With Mach http://imagebin.org/296858 it peaks at about 3300mm/min. sam (having too much fun...) On 2/20/2014 10:37 AM, sam sokolik wrote: Steve! Here is your sample of gcode running the newest TP Original TP http://imagebin.org/294551 (limit of the 1 segment look-ahead) New TP (which does arc-arc , Line-arc and line-line look-ahead.) http://imagebin.org/294550 Robs hard work is awesome! (and it keeps improving) sam On 04/07/2013 05:28 PM, Steve Blackmore wrote: On Sun, 7 Apr 2013 10:21:11 -0500, you wrote: On Sun, Apr 07, 2013 at 10:13:11AM +0100, Steve Blackmore wrote: CV in LinuxCNC still does not work well. Have a look at this http://youtu.be/ph_IVXg1C9Y Please share your gcode and your full config directory. Hi Chris - Here's part of the code - it's obvious early on without all of it. I'll post the config tomorrow - machine is at work. BTW - Changing N190 to N190 G64 P0.5 and it runs better, but that's far too much deviation. This was first reported on 26th July 2011 in a post trying to understand EMC's operation Have a read of that thread for way more information. Daniel Rogge concurs in his tests posted on 29th. I've re posted as this is still occurring since V2.4 ! N100 G0 G21 G17 G90 G40 G49 G80 N110 G91.1 N120 G1 Z20.000 F3600.0 N130 T1 M06 N140 (End Mill {6 mm}) N150 G43H1 Z20.000 N160 S12000 M03 N170(Toolpath:- Profile 1) N180() N190 G64 N200 G1 X0.000 Y0.000 F3600 N210 G0 X-1.974 Y8.147 Z6.000 N220 G1 X-1.974 Y8.147 Z-1.000 F1200.0 N230 G2 X-1.346 Y40.813 I1274.739 J-8.173 F3600.0 N240 G1 X-1.246 Y43.543 Z-1.000 N250 G1 X-1.175 Y44.975 Z-1.000 N260 G2 X0.630 Y65.631 I357.751 J-20.852 N270 G2 X3.629 Y86.169 I356.674 J-41.593 N280 G1 X3.738 Y86.813 Z-1.000 N290 G1 X3.885 Y87.608 Z-1.000 N300 G1 X4.121 Y88.649 Z-1.000 N310 G1 X4.891 Y91.654 Z-1.000 N320 G2 X8.045 Y101.818 I125.643 J-33.412 N330 G2 X12.017 Y111.685 I122.371 J-43.533 N340 G1 X12.167 Y112.021 Z-1.000 N350 G1 X12.392 Y112.507 Z-1.000 N360 G1 X12.836 Y113.360 Z-1.000 N370 G1 X14.404 Y116.145 Z-1.000 N380 G2 X48.101 Y150.602 I84.920 J-49.341 N390 G2 X94.143 Y164.886 I51.247 J-83.839 N400 G1 X98.585 Y165.027 Z-1.000 N410 G2 X107.856 Y164.832 I1.550 J-146.800 N420 G1 X114.650 Y164.312 Z-1.000 N430 G1 X121.416 Y163.467 Z-1.000 N440 G1 X124.191 Y163.060 Z-1.000 N450 G1 X127.048 Y162.615 Z-1.000 N460 G2 X139.931 Y159.885 I-25.733 J-153.243 N470 G2 X152.544 Y156.073 I-38.655 J-150.662 N480 G1 X157.534 Y154.334 Z-1.000 N490 G1 X161.108 Y153.062 Z-1.000 N500 G2 X183.667 Y143.969 I-122.738 J-337.027 N510 G2 X205.551 Y133.371 I-145.209 J-327.734 N520 G1 X207.732 Y132.276 Z-1.000 N530 G1 X215.815 Y128.556 Z-1.000 N540 G1 X219.037 Y127.150 Z-1.000 N550 G1 X222.272 Y125.782 Z-1.000 N560 G1 X223.416 Y125.300 Z-1.000 N570 G1 X223.904 Y125.085 Z-1.000 N580 G3 X237.774 Y120.073 I38.168 J83.912 N590 G3 X252.272 Y117.334 I24.318 J88.999 N600 G1 X253.479 Y117.248 Z-1.000 Steve Blackmore -- -- Minimize network downtime and maximize team effectiveness. Reduce network management and security costs.Learn how to hire the most talented Cisco Certified professionals. Visit the Employer Resources Portal http://www.cisco.com/web/learning/employer_resources/index.html ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users --
Re: [Emc-users] Poor CV
I had a copy on an old stick. T4 dia is .05 in the tool table This is the 45deg tool to break the edge but still roughly the same code as the end mill code. You will have to change the feedrate to really test the speed as this feedrate works fine with old tp(at least on my VMC it does. I use v 2.5.0 % T4 M6 G0 G90 G54 X-2.2343 Y2.1193 S6000 M3 G43 H4 Z.25 M8 Z.1 G1 Z-.045 F100. G41 D4 X-2.1989 Y2.084 G3 X-2.1636 Y2.0694 I.0353 J.0353 X-2.1282 Y2.084 J.0499 G1 X-2.0686 Y2.1436 G2 X-2.0509 Y2.1509 I.0177 J-.0177 G1 X-2.0505 G2 X-1.2341 Y1.8359 I-.024 J-1.2776 G3 X-1.1338 Y1.8012 I.1003 J.1278 X-.9713 Y1.9637 J.1625 X-.9729 Y1.9867 I-.1625 G2 X-.9969 Y2.2332 I1.2538 J.2465 X-.8375 Y2.8512 I1.2778 X-.8221 Y2.8633 I.0219 J-.0121 G1 X-.7197 Y2.8907 G2 X-.7132 Y2.8916 I.0065 J-.0242 X-.7003 Y2.888 J-.0251 X-.1508 Y2.2069 I-.6596 J-1.0945 G3 X0. Y2.105 I.1508 J.0606 X.1508 Y2.2069 J.1625 G2 X.7003 Y2.888 I1.2091 J-.4134 X.7132 Y2.8916 I.0129 J-.0215 X.7197 Y2.8907 J-.0251 G1 X.8221 Y2.8633 G2 X.8375 Y2.8512 I-.0065 J-.0242 X.9969 Y2.2332 I-1.1184 J-.618 X.9729 Y1.9867 I-1.2778 G3 X.9713 Y1.9637 I.1609 J-.023 X1.1338 Y1.8012 I.1625 X1.2341 Y1.8359 J.1625 G2 X2.0505 Y2.1509 I.8404 J-.9626 G1 X2.0509 G2 X2.0686 Y2.1436 J-.025 G1 X2.1436 Y2.0686 G2 X2.1509 Y2.0509 I-.0177 J-.0177 G1 Y2.0505 G2 X1.8359 Y1.2341 I-1.2776 J.024 G3 X1.8012 Y1.1338 I.1278 J-.1003 X1.9637 Y.9713 I.1625 X1.9867 Y.9729 J.1625 G2 X2.2332 Y.9969 I.2465 J-1.2538 X2.8512 Y.8375 J-1.2778 X2.8633 Y.8221 I-.0121 J-.0219 G1 X2.8907 Y.7197 G2 X2.8916 Y.7132 I-.0242 J-.0065 X2.888 Y.7003 I-.0251 X2.2069 Y.1508 I-1.0945 J.6596 G3 X2.105 Y0. I.0606 J-.1508 X2.2069 Y-.1508 I.1625 G2 X2.888 Y-.7003 I-.4134 J-1.2091 X2.8916 Y-.7132 I-.0215 J-.0129 X2.8907 Y-.7197 I-.0251 G1 X2.8633 Y-.8221 G2 X2.8512 Y-.8375 I-.0242 J.0065 X2.2332 Y-.9969 I-.618 J1.1184 X1.9867 Y-.9729 J1.2778 G3 X1.9637 Y-.9713 I-.023 J-.1609 X1.8012 Y-1.1338 J-.1625 X1.8359 Y-1.2341 I.1625 G2 X2.1509 Y-2.0505 I-.9626 J-.8404 G1 Y-2.0509 G2 X2.1436 Y-2.0686 I-.025 G1 X2.0686 Y-2.1436 G2 X2.0509 Y-2.1509 I-.0177 J.0177 G1 X2.0505 G2 X1.2341 Y-1.8359 I.024 J1.2776 G3 X1.1338 Y-1.8012 I-.1003 J-.1278 X.9713 Y-1.9637 J-.1625 X.9729 Y-1.9867 I.1625 G2 X.9969 Y-2.2332 I-1.2538 J-.2465 X.8375 Y-2.8512 I-1.2778 X.8221 Y-2.8633 I-.0219 J.0121 G1 X.7197 Y-2.8907 G2 X.7132 Y-2.8916 I-.0065 J.0242 X.7003 Y-2.888 J.0251 X.1508 Y-2.2069 I.6596 J1.0945 G3 X0. Y-2.105 I-.1508 J-.0606 X-.1508 Y-2.2069 J-.1625 G2 X-.7003 Y-2.888 I-1.2091 J.4134 X-.7132 Y-2.8916 I-.0129 J.0215 X-.7197 Y-2.8907 J.0251 G1 X-.8221 Y-2.8633 G2 X-.8375 Y-2.8512 I.0065 J.0242 X-.9969 Y-2.2332 I1.1184 J.618 X-.9729 Y-1.9867 I1.2778 G3 X-.9713 Y-1.9637 I-.1609 J.023 X-1.1338 Y-1.8012 I-.1625 X-1.2341 Y-1.8359 J-.1625 G2 X-2.0505 Y-2.1509 I-.8404 J.9626 G1 X-2.0509 G2 X-2.0686 Y-2.1436 J.025 G1 X-2.1436 Y-2.0686 G2 X-2.1509 Y-2.0509 I.0177 J.0177 G1 Y-2.0505 G2 X-1.8359 Y-1.2341 I1.2776 J-.024 G3 X-1.8012 Y-1.1338 I-.1278 J.1003 X-1.9637 Y-.9713 I-.1625 X-1.9867 Y-.9729 J-.1625 G2 X-2.2332 Y-.9969 I-.2465 J1.2538 X-2.8512 Y-.8375 J1.2778 X-2.8633 Y-.8221 I.0121 J.0219 G1 X-2.8907 Y-.7197 G2 X-2.8916 Y-.7132 I.0242 J.0065 X-2.888 Y-.7003 I.0251 X-2.2069 Y-.1508 I1.0945 J-.6596 G3 X-2.105 Y0. I-.0606 J.1508 X-2.2069 Y.1508 I-.1625 G2 X-2.888 Y.7003 I.4134 J1.2091 X-2.8916 Y.7132 I.0215 J.0129 X-2.8907 Y.7197 I.0251 G1 X-2.8633 Y.8221 G2 X-2.8512 Y.8375 I.0242 J-.0065 X-2.2332 Y.9969 I.618 J-1.1184 X-1.9867 Y.9729 J-1.2778 G3 X-1.9637 Y.9713 I.023 J.1609 X-1.8012 Y1.1338 J.1625 X-1.8359 Y1.2341 I-.1625 G2 X-2.1509 Y2.0505 I.9626 J.8404 G1 Y2.0509 G2 X-2.1436 Y2.0686 I.025 G1 X-2.1282 Y2.084 G3 X-2.1136 Y2.1193 I-.0354 J.0353 X-2.1282 Y2.1547 I-.05 G1 G40 X-2.1636 Y2.19 Z.055 F20. G0 Z.25 M5 G91 G28 Z0. M9 M30 % On Mon, Mar 3, 2014 at 8:32 PM, Robert Ellenberg rwe...@gmail.com wrote: Terry, that's a good idea. I suspect G41/G42 won't affect much since the offsets are applied before the path is sent to the motion module, but it would be nice to be sure. Do you have a program handy that use G41/42 extensively? If so, I'd be happy to add it to the tests I run. -Rob On Mon, Mar 3, 2014 at 7:54 PM, TERRY Christophersen tcninj...@gmail.com wrote: Have you tried the new tp with g41/g42? Im sure it wont matter but just in case... Terry One thing I have noticed - with the new TP - the path reaches commanded speed. mach gets close but is usually a few percent under. Take this program steve posted a while back. ( http://electronicsam.com/images/KandT/testing/steve.ngc ) New TP http://imagebin.org/296859 If you calculate it out - it is about 3600mm/min. that is the commanded velocity (following path within .1mm aprox .004) it actually finishes a whole .5 seconds faster ;) With Mach http://imagebin.org/296858 it peaks at about 3300mm/min. sam (having too much fun...) On 2/20/2014 10:37 AM, sam sokolik wrote: Steve! Here is your sample of gcode running the newest TP
Re: [Emc-users] Poor CV
Sorry I changed from the 65ipm to 100 before I sent it I usually run that operation at 65 to get the surface finish I may need more spindle speed with the new tp :) Terry On Mon, Mar 3, 2014 at 10:20 PM, TERRY Christophersen tcninj...@gmail.comwrote: I had a copy on an old stick. T4 dia is .05 in the tool table This is the 45deg tool to break the edge but still roughly the same code as the end mill code. You will have to change the feedrate to really test the speed as this feedrate works fine with old tp(at least on my VMC it does. I use v 2.5.0 % T4 M6 G0 G90 G54 X-2.2343 Y2.1193 S6000 M3 G43 H4 Z.25 M8 Z.1 G1 Z-.045 F100. G41 D4 X-2.1989 Y2.084 G3 X-2.1636 Y2.0694 I.0353 J.0353 X-2.1282 Y2.084 J.0499 G1 X-2.0686 Y2.1436 G2 X-2.0509 Y2.1509 I.0177 J-.0177 G1 X-2.0505 G2 X-1.2341 Y1.8359 I-.024 J-1.2776 G3 X-1.1338 Y1.8012 I.1003 J.1278 X-.9713 Y1.9637 J.1625 X-.9729 Y1.9867 I-.1625 G2 X-.9969 Y2.2332 I1.2538 J.2465 X-.8375 Y2.8512 I1.2778 X-.8221 Y2.8633 I.0219 J-.0121 G1 X-.7197 Y2.8907 G2 X-.7132 Y2.8916 I.0065 J-.0242 X-.7003 Y2.888 J-.0251 X-.1508 Y2.2069 I-.6596 J-1.0945 G3 X0. Y2.105 I.1508 J.0606 X.1508 Y2.2069 J.1625 G2 X.7003 Y2.888 I1.2091 J-.4134 X.7132 Y2.8916 I.0129 J-.0215 X.7197 Y2.8907 J-.0251 G1 X.8221 Y2.8633 G2 X.8375 Y2.8512 I-.0065 J-.0242 X.9969 Y2.2332 I-1.1184 J-.618 X.9729 Y1.9867 I-1.2778 G3 X.9713 Y1.9637 I.1609 J-.023 X1.1338 Y1.8012 I.1625 X1.2341 Y1.8359 J.1625 G2 X2.0505 Y2.1509 I.8404 J-.9626 G1 X2.0509 G2 X2.0686 Y2.1436 J-.025 G1 X2.1436 Y2.0686 G2 X2.1509 Y2.0509 I-.0177 J-.0177 G1 Y2.0505 G2 X1.8359 Y1.2341 I-1.2776 J.024 G3 X1.8012 Y1.1338 I.1278 J-.1003 X1.9637 Y.9713 I.1625 X1.9867 Y.9729 J.1625 G2 X2.2332 Y.9969 I.2465 J-1.2538 X2.8512 Y.8375 J-1.2778 X2.8633 Y.8221 I-.0121 J-.0219 G1 X2.8907 Y.7197 G2 X2.8916 Y.7132 I-.0242 J-.0065 X2.888 Y.7003 I-.0251 X2.2069 Y.1508 I-1.0945 J.6596 G3 X2.105 Y0. I.0606 J-.1508 X2.2069 Y-.1508 I.1625 G2 X2.888 Y-.7003 I-.4134 J-1.2091 X2.8916 Y-.7132 I-.0215 J-.0129 X2.8907 Y-.7197 I-.0251 G1 X2.8633 Y-.8221 G2 X2.8512 Y-.8375 I-.0242 J.0065 X2.2332 Y-.9969 I-.618 J1.1184 X1.9867 Y-.9729 J1.2778 G3 X1.9637 Y-.9713 I-.023 J-.1609 X1.8012 Y-1.1338 J-.1625 X1.8359 Y-1.2341 I.1625 G2 X2.1509 Y-2.0505 I-.9626 J-.8404 G1 Y-2.0509 G2 X2.1436 Y-2.0686 I-.025 G1 X2.0686 Y-2.1436 G2 X2.0509 Y-2.1509 I-.0177 J.0177 G1 X2.0505 G2 X1.2341 Y-1.8359 I.024 J1.2776 G3 X1.1338 Y-1.8012 I-.1003 J-.1278 X.9713 Y-1.9637 J-.1625 X.9729 Y-1.9867 I.1625 G2 X.9969 Y-2.2332 I-1.2538 J-.2465 X.8375 Y-2.8512 I-1.2778 X.8221 Y-2.8633 I-.0219 J.0121 G1 X.7197 Y-2.8907 G2 X.7132 Y-2.8916 I-.0065 J.0242 X.7003 Y-2.888 J.0251 X.1508 Y-2.2069 I.6596 J1.0945 G3 X0. Y-2.105 I-.1508 J-.0606 X-.1508 Y-2.2069 J-.1625 G2 X-.7003 Y-2.888 I-1.2091 J.4134 X-.7132 Y-2.8916 I-.0129 J.0215 X-.7197 Y-2.8907 J.0251 G1 X-.8221 Y-2.8633 G2 X-.8375 Y-2.8512 I.0065 J.0242 X-.9969 Y-2.2332 I1.1184 J.618 X-.9729 Y-1.9867 I1.2778 G3 X-.9713 Y-1.9637 I-.1609 J.023 X-1.1338 Y-1.8012 I-.1625 X-1.2341 Y-1.8359 J-.1625 G2 X-2.0505 Y-2.1509 I-.8404 J.9626 G1 X-2.0509 G2 X-2.0686 Y-2.1436 J.025 G1 X-2.1436 Y-2.0686 G2 X-2.1509 Y-2.0509 I.0177 J.0177 G1 Y-2.0505 G2 X-1.8359 Y-1.2341 I1.2776 J-.024 G3 X-1.8012 Y-1.1338 I-.1278 J.1003 X-1.9637 Y-.9713 I-.1625 X-1.9867 Y-.9729 J-.1625 G2 X-2.2332 Y-.9969 I-.2465 J1.2538 X-2.8512 Y-.8375 J1.2778 X-2.8633 Y-.8221 I.0121 J.0219 G1 X-2.8907 Y-.7197 G2 X-2.8916 Y-.7132 I.0242 J.0065 X-2.888 Y-.7003 I.0251 X-2.2069 Y-.1508 I1.0945 J-.6596 G3 X-2.105 Y0. I-.0606 J.1508 X-2.2069 Y.1508 I-.1625 G2 X-2.888 Y.7003 I.4134 J1.2091 X-2.8916 Y.7132 I.0215 J.0129 X-2.8907 Y.7197 I.0251 G1 X-2.8633 Y.8221 G2 X-2.8512 Y.8375 I.0242 J-.0065 X-2.2332 Y.9969 I.618 J-1.1184 X-1.9867 Y.9729 J-1.2778 G3 X-1.9637 Y.9713 I.023 J.1609 X-1.8012 Y1.1338 J.1625 X-1.8359 Y1.2341 I-.1625 G2 X-2.1509 Y2.0505 I.9626 J.8404 G1 Y2.0509 G2 X-2.1436 Y2.0686 I.025 G1 X-2.1282 Y2.084 G3 X-2.1136 Y2.1193 I-.0354 J.0353 X-2.1282 Y2.1547 I-.05 G1 G40 X-2.1636 Y2.19 Z.055 F20. G0 Z.25 M5 G91 G28 Z0. M9 M30 % On Mon, Mar 3, 2014 at 8:32 PM, Robert Ellenberg rwe...@gmail.com wrote: Terry, that's a good idea. I suspect G41/G42 won't affect much since the offsets are applied before the path is sent to the motion module, but it would be nice to be sure. Do you have a program handy that use G41/42 extensively? If so, I'd be happy to add it to the tests I run. -Rob On Mon, Mar 3, 2014 at 7:54 PM, TERRY Christophersen tcninj...@gmail.com wrote: Have you tried the new tp with g41/g42? Im sure it wont matter but just in case... Terry One thing I have noticed - with the new TP - the path reaches commanded speed. mach gets close but is usually a few percent under. Take this program steve posted a while back. ( http://electronicsam.com/images/KandT/testing/steve.ngc ) New TP http://imagebin.org/296859 If you