Re: [Emc-users] OT: PDP11
On Friday 02 January 2009, Kent A. Reed wrote: Stuart and Jon: You got me with your talk of PDP11 memory tests and insanely complex systems with PDP-11s with hundreds of ISR addresses...I was immediately transported back to the 1970s. I still have the tactile memory of keying in the bootstrap loader from the front panel, over and over and over, as we debugged our laboratory control programs, and keying in our patches because it was too time consuming to reassemble and link code in our high speed punched papertape environment. I have also worked with PDP8s, HP2100s, DG Novas, and even Interdata minis, but I loved the PDP11 the most. I know some lucky folks have original PDP11 front panels. I was too young to think to salvage mine when the relay racks were forklifted out of the lab. Those were the days! Yeah, they were. I once had a CBS supplied PDP-11/23 that ran the networks (CBS) satellite system here at WDTV. It slowly fell apart, with final uptimes measured in minutes and the DEC folks replaced everything in it but the frame rail with the seriel number without effecting the problem. And when it was found to have crashed, it often had to be rebooted several times, each instance of which was about a 10 minute process because it actually compiled the pascal srcs each time it booted, this to make it easy to upgrade the software, just download the new srcs from the sideband channel on the satellite signal and reboot. And it was costing us money because we were airing ads for dog food only sold in So Cal because a src switch was not performed they refused to pay us to carry it. Finally Hugo, the computer guru at CBS traded me his test mule machine for mine, which pissed off the DEC folks, but I never had to call them again. But that put Hugo out of business fixing other stations problems, so in about 3 months CBS was forced to convert their whole system to something that ran on an industrial IBM with an artic controller board, which actually did all the work. So no, I don't have fond memories of either the PDP-11/23, or of the quality of DEC's service protocols. Genuine new parts were simply not used, if it booted in their test mule, it was good and went back to the field techs. Regards, Kent -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- 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) The F-15 Eagle: If it's up, we'll shoot it down. If it's down, we'll blow it up. -- A McDonnel-Douglas ad from a few years ago -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] NetMos 9805 PCI Parallel Port Card Problem (I/O Ports disabled)
Writing 1 to file enable (sudo echo 1 enable) didn't help because of denied permission, but turning off plug and play OS in BIOS helped. Anyway, thank you very much for your help. Sasa On 12/30/08, Sebastian Kuzminsky s...@highlab.com wrote: Sasa Vilic wrote: The differences between this output and output on my computer are only in addresses. (:00:10.0 and I/O port addresses). On my computer I/O port address, if I can good remember, are something like a400, a000, d400, d000, ., 9800 etc, but all I/O ports are disabled. I did not know, that this addresses are so important. I will try to do tomorrow, what you have suggested and I will get real output of lspci. Anyway, thank you very much. Your information seems very helpful. I will be able to test it tomorrow and inform you about results. The exact addresses are not important, the part that's important that I wanted to make sure about is the disabled, so i think we're ok, don't bother sending the exact addresses. Instead try writing a 1 to the PCI device's enable file in sysfs, rerun lspci, and see if that fixes it. -- Sebastian Kuzminsky Dualism? Sure. Brain and Mind are different. Brain is a noun. Mind is a verb - it's what a properly functioning Brain does. -- DHuff -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] NetMos 9805 PCI Parallel Port Card Problem (I/O Ports disabled)
Sasa Vilic wrote: Writing 1 to file enable (sudo echo 1 enable) didn't help because of denied permission, but turning off plug and play OS in BIOS helped. Glad you got it working :-) The sudo echo 1 enable doesnt work because the redirection is happening from the , on behalf of your shell, which is running as you, unaffected by the sudo. A better way to do it would be echo 1 | sudo dd of=enable. Here the writing to the enable file is done by dd, which *is* running as root under sudo. What are you planning to use the parport for? -- Sebastian Kuzminsky Dualism? Sure. Brain and Mind are different. Brain is a noun. Mind is a verb - it's what a properly functioning Brain does. -- DHuff -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] OT: PDP11
On Jan 2, 2009, at 12:51 AM, Gene Heskett wrote: On Friday 02 January 2009, Kent A. Reed wrote: Stuart and Jon: You got me with your talk of PDP11 memory tests and insanely complex systems with PDP-11s with hundreds of ISR addresses...I was immediately transported back to the 1970s. I still have the tactile memory of keying in the bootstrap loader from the front panel, over and over and over, as we debugged our laboratory control programs, and keying in our patches because it was too time consuming to reassemble and link code in our high speed punched papertape environment. I have also worked with PDP8s, HP2100s, DG Novas, and even Interdata minis, but I loved the PDP11 the most. I know some lucky folks have original PDP11 front panels. I was too young to think to salvage mine when the relay racks were forklifted out of the lab. Those were the days! Things were MUCH simpler then! Yeah, they were. I once had a CBS supplied PDP-11/23 that ran the networks (CBS) satellite system here at WDTV. It slowly fell apart, with final uptimes measured in minutes and the DEC folks replaced everything in it but the frame rail with the seriel number without effecting the problem. And when it was found to have crashed, it often had to be rebooted several times, each instance of which was about a 10 minute process because it actually compiled the pascal srcs each time it booted, this to make it easy to upgrade the software, just download the new srcs from the sideband channel on the satellite signal and reboot. And it was costing us money because we were airing ads for dog food only sold in So Cal because a src switch was not performed they refused to pay us to carry it. Finally Hugo, the computer guru at CBS traded me his test mule machine for mine, which pissed off the DEC folks, but I never had to call them again. But that put Hugo out of business fixing other stations problems, so in about 3 months CBS was forced to convert their whole system to something that ran on an industrial IBM with an artic controller board, which actually did all the work. So no, I don't have fond memories of either the PDP-11/23, or of the quality of DEC's service protocols. Genuine new parts were simply not used, if it booted in their test mule, it was good and went back to the field techs. Regards, Kent We had an 11/03 that ran for approx 10 years. It was the data acq and calculations for a PE-303 Atomic Absorbtion. 11/03 CPU, 4K words core, 4K words dynamic memory, 16 bit parallel interface which talked to a 12 bit A/D running at about 4 KHz. It took the data, did a 2nd order curve fit to the data, scaled it by the dilution factors and printed out answers. The system device was a HP-8413(?) programmable calculator which also served as the printer. First entry of code was off the front panel; all 4K words of it. Then a loader/unloader spooled it to the tape on the HP. I still have an 11/23 with a 40 Mb disk assorted memory and interface boards and a full set of Macro-11 manuals. Anyone need an RL-02? ;-) Dave - --- -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- 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) The F-15 Eagle: If it's up, we'll shoot it down. If it's down, we'll blow it up. -- A McDonnel-Douglas ad from a few years ago -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] NetMos 9805 PCI Parallel Port Card Problem (I/O Ports disabled)
It will be used for torch height control on plasma machine. By the way, do you know any good THC system, which has been tested with Hyphetherm plasmas? On Fri, Jan 2, 2009 at 5:29 PM, Sebastian Kuzminsky s...@highlab.com wrote: Sasa Vilic wrote: Writing 1 to file enable (sudo echo 1 enable) didn't help because of denied permission, but turning off plug and play OS in BIOS helped. Glad you got it working :-) The sudo echo 1 enable doesnt work because the redirection is happening from the , on behalf of your shell, which is running as you, unaffected by the sudo. A better way to do it would be echo 1 | sudo dd of=enable. Here the writing to the enable file is done by dd, which *is* running as root under sudo. What are you planning to use the parport for? -- Sebastian Kuzminsky Dualism? Sure. Brain and Mind are different. Brain is a noun. Mind is a verb - it's what a properly functioning Brain does. -- DHuff -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Slow axis router
Aaron If you told us more specific you would get better answers. eg size of steppers, driver type, voltage of power supply type of lead screw and acceleration settings would be a good start. Chris M From: glenn@batnet.coma To: emc-users@lists.sourceforge.net Date: Fri, 2 Jan 2009 11:06:24 -0800 Subject: Re: [Emc-users] Slow axis router Aaron, If you look at what the commercial guys can do, you will see what the ultimate ceiling is for us hobbyists. I know the CNC Router from Haas (very high-end machine) can do 2000 in/min (850 mm/s) in fast slew mode. Of course, it can't cut at that speed. Anyway, I like to consider how long do I want to wait as the machine goes from end to end. In your case that is 100 sec. So how about 30 sec? Then you need about 3x from where you are now. Good luck! Glenn -Original Message- From: emc-users-boun...@lists.sourceforge.net [mailto:emc-users-boun...@lists.sourceforge.net] On Behalf Of aaron Moore Sent: Friday, January 02, 2009 10:08 AM To: EMC userslist Subject: [Emc-users] Slow axis router Hi Having built a 1.5 m x 1.5 m CNC gantry router used for woodwork, I am still amazed that it works as well as it does, however I am now thinking that the axis should be moving a little bit faster ( I recently costed a job that would have taken 15 hours to cut which seems a bit excessive). It is set to run at 15mm per second max velocity, above that speed the steppers start screaming and miss stepps. I know that the screws, bearings and drive nuts are not that well aligned and whip about abit. I plan to fix that soon, but I would like to know what sort of speed I should aim for. Is there any one out there with a similar set up who could tell me what max speed they are working to. All the best for the new year Aaron -- Powered by Outblaze -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users _ Show them the way! Add maps and directions to your party invites. http://www.microsoft.com/windows/windowslive/events.aspx -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] EMC1 ?
Hi Guys, I'd like to know where I can get the public domain version of EMC? Is it available on a cvs server like cvs.linuxcnc.org? If so, please provide name of branch/tag etc. Thanks and Happy New Year! -Rich -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Slow axis router
On Fri, Jan 2, 2009 at 2:19 PM, Chris Morley chrisinnana...@hotmail.comwrote: Aaron If you told us more specific you would get better answers. eg size of steppers, driver type, voltage of power supply type of lead screw and acceleration settings would be a good start. Chris M snip For comparison - 48X24X4 gantry style router (Lionclaw Kit). Porter cable 1.5hp router as spindle I am using a hobbycnc driver with 205 oz/in steppers direct driving 1/2 -10 single start ACME threads with DumpsterCNC backlash nuts. Driver halfstepping at 28V (board rated to 42v). It can easily cut at 40ipm (~1000mmpm) with a .25 endmill .25 deep in MDF. My machine flexes too much at higher cutting rates. For rapids, I can get well over 100ipm when its tuned up. HTH Brian -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] PCB routing on a CNC mill
Has anyone been routing printed circuit boards? I have a CNC mill runing EMC2. I am guessing that I would need a special PCB software that would generate the G code. Can anyone who has done it tell me what I need? William Sent from my iPod -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] EMC1 ?
The original (coming from NIST) code is available in the emc branch at cvs.linuxcnc.org However, there have been numerous additions to the code since the initial import (which was PD), so anything afterwards would need carefull looking at (probably concent from the authors) if it's still PD. The safest bet would be to checkout the earliest code. Also notice there are some things in there that are clearly not PD: like classicladder, emcplot3d, etc Regards, Alex - Original Message - From: Richard F. Amaral rama...@aes-softwareconsulting.com To: emc-users@lists.sourceforge.net Sent: Friday, January 02, 2009 9:43 PM Subject: [Emc-users] EMC1 ? Hi Guys, I'd like to know where I can get the public domain version of EMC? Is it available on a cvs server like cvs.linuxcnc.org? If so, please provide name of branch/tag etc. Thanks and Happy New Year! -Rich -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users Internal Virus Database is out of date. Checked by AVG - http://www.avg.com Version: 8.0.176 / Virus Database: 270.10.1/1868 - Release Date: 29.12.2008 10:48 -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Slow axis router
Aaron, greetings I am not a real woodworker but I know from hand routing experience that too slow a feed gives burning especially on endgrain of hardwoods. You need plenty of chips flying off because most of the heat from cutting is carried away by them. I think you need to start from the manufacturers feed/speed advice for the tooling and materials you want to use to set the required max. cutting speed. Rapids can affect the length of a job too of course but not the quality. John Prentice - Original Message - From: aaron Moore aaronmo...@linuxmail.org To: EMC userslist emc-users@lists.sourceforge.net Sent: Friday, January 02, 2009 6:07 PM Subject: [Emc-users] Slow axis router Hi Having built a 1.5 m x 1.5 m CNC gantry router used for woodwork, I am still amazed that it works as well as it does, however I am now thinking that the axis should be moving a little bit faster ( I recently costed a job that would have taken 15 hours to cut which seems a bit excessive). It is set to run at 15mm per second max velocity, above that speed the steppers start screaming and miss stepps. I know that the screws, bearings and drive nuts are not that well aligned and whip about abit. I plan to fix that soon, but I would like to know what sort of speed I should aim for. Is there any one out there with a similar set up who could tell me what max speed they are working to. All the best for the new year Aaron -- Powered by Outblaze -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] PCB routing on a CNC mill
This thread gives links to a few of the options. http://www.cnczone.com/forums/showthread.php?t=69394 (I am samco) - Original Message - From: William Martin distance...@rocketmail.com To: emc-users@lists.sourceforge.net Sent: Friday, January 02, 2009 3:12 PM Subject: [Emc-users] PCB routing on a CNC mill Has anyone been routing printed circuit boards? I have a CNC mill runing EMC2. I am guessing that I would need a special PCB software that would generate the G code. Can anyone who has done it tell me what I need? William Sent from my iPod -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.176 / Virus Database: 270.10.2/1872 - Release Date: 1/2/2009 1:10 PM -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] PCB routing on a CNC mill
Has anyone been routing printed circuit boards? I have a CNC mill runing EMC2. I am guessing that I would need a special PCB software that would generate the G code. Can anyone who has done it tell me what I need? William Sent from my iPod -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users William, I have done some PCB routing. I am using a Sherline mill for the hardware and Eagle PCB (www.cadsoftusa.com) layout for the design. Eagle has a user language program (ulp) that generates good G code. Some comments: 1. Very fine line routing will be disappointing, it tends to push the coper out of the way rather than cut. This is in part due to the low spindle speeds. The velocity of a 1/32 or smaller mill at the cutting surface is quite low. A high speed spindle will help immensely. For wider lines the resolution is good enough and it is quick. 2. The best method, at least for me, is to use a toner transfer technology to produce an etched circuit and use the CNC mill to drill the holes and cut out the board. This process has a number of limitations but gives me decent boards fairly quickly. Hope this helps, Frank -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] EMC1 ?
Why do you want this? If your idea is to incorporate some of the public domain code into a closed source product, then I would _highly recommend_ that you obtain this directly from NIST. Alternatively, I believe I still have some old source files that I know are 100% the product of US government employees (or people like myself, who were at the time, bound by contractual obligations that required renouncing any intellectual property rights). Please post a summary (short) of your plans, and I (or someone else) can probably help you. Thanks, Matt P.S. If anyone else on the list knows of a source for the last pure public domain code, I'd like to know. Otherwise, I have to go searching through a huge hard drive for old files. :( On Fri, 2009-01-02 at 13:43 -0600, Richard F. Amaral wrote: Hi Guys, I'd like to know where I can get the public domain version of EMC? Is it available on a cvs server like cvs.linuxcnc.org? If so, please provide name of branch/tag etc. Thanks and Happy New Year! -Rich -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] PCB routing on a CNC mill
On Fri, Jan 02, 2009 at 05:14:03PM -0500, fr...@fchambers.com wrote: 1. Very fine line routing will be disappointing, it tends to push the coper out of the way rather than cut. This is in part due to the low spindle speeds. The velocity of a 1/32 or smaller mill at the cutting surface is quite low. A high speed spindle will help immensely. For wider lines the resolution is good enough and it is quick. So true. Spindle speed and runout are very important. I have good results at 20krpm but feed rate is limited by the spindle speed. 30krpm would be better. 2. The best method, at least for me, is to use a toner transfer technology to produce an etched circuit and use the CNC mill to drill the holes and cut out the board. This process has a number of limitations but gives me decent boards fairly quickly. Interesting! I have found that this process works pretty badly and is finicky compared to routing. Maybe I never found the right material to print on. I only tried a couple times. -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
