Re: [Emc-users] Mill coordinates setup
Andy, I'd like to know more about the resolvers on your machine. Can you share what they are and how they work? Thanks, Allen On 03/20/2015 02:07 PM, andy pugh wrote: On 20 March 2015 at 20:24, Kirk Wallace kwall...@wallacecompany.com wrote: This gets me to the machine zero within the accuracy of the machine. My mill homes to the limit switch and then the resolvers. So my home location is accurate to about 2 orders of magnitude more than the absolute accuracy of the machine. Which doesn't hurt but isn't useful. It does mean I can be very confident about turning the machine off and re-starting a job the next day. -- Dive into the World of Parallel Programming The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Where's Gene?
Quoth Belli Button. Haven't heard from him in a while, hope he's oOK. He seems to be busy on the trinity-kde users mailing list. -- Regards, Russell | Russell Brown | MAIL: russ...@lls.com PHONE: 01780 471800 | | Lady Lodge Systems | WWW Work: http://www.lls.com | | Peterborough, England | WWW Play: http://www.ruffle.me.uk | -- Dive into the World of Parallel Programming The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Simple, adjustable timer
2015-03-22 2:27 GMT+02:00 Chris Morley chrisinnana...@hotmail.com: %TM0.P=%IW0 will set IEC timer 0 at whatever classicladder.0.s32in-00 is This could be connected to a vcp spinbutton to select the time. Awesome, thank you! Viesturs -- Dive into the World of Parallel Programming The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] gcmc - 1.5.3
Hi All, A new version 1.5.3 of gcmc has been released. This release is a bugfix release and fixes relative movement. The movement would be calculated twice if the destination was within 1e-12 (epsilon) of zero, resulting in the wrong path. You can get the new version from the homepage: http://www.vagrearg.org/content/gcmc As usual, let me know if you encounter bugs or have any questions or wishes. -- Greetings Bertho (disclaimers are disclaimed) -- Dive into the World of Parallel Programming The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Where's Gene?
He has posted on a debian forum thread as recently as yesterday. On Sun, Mar 22, 2015 at 6:02 AM, Russell Brown russ...@lls.lls.com wrote: Quoth Belli Button. Haven't heard from him in a while, hope he's oOK. He seems to be busy on the trinity-kde users mailing list. -- Regards, Russell | Russell Brown | MAIL: russ...@lls.com PHONE: 01780 471800 | | Lady Lodge Systems | WWW Work: http://www.lls.com | | Peterborough, England | WWW Play: http://www.ruffle.me.uk | -- Dive into the World of Parallel Programming The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Dive into the World of Parallel Programming The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Where's Gene?
Haven't heard from him in a while, hope he's oOK. -- Dive into the World of Parallel Programming The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Mill coordinates setup
On 23 March 2015 at 00:47, Allen aw...@mail.com wrote: I'd like to know more about the resolvers on your machine. Can you share what they are and how they work? Just ordinary resolvers in the motors. Connected to LinuxCNC with a Mesa 7i49. That should be a turnkey setup now. (It wasn't, I had to write three separate drivers, but they all exist now) -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Dive into the World of Parallel Programming The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Mill coordinates setup
On 03/22/2015 07:47 PM, Allen wrote: Andy, I'd like to know more about the resolvers on your machine. Can you share what they are and how they work? Resolvers are transformers that vary their coupling as they are rotated. One way to do it, a rotor winding provides an excitation to a pair of stator windings that are 90 degrees apart from each other. As one winding reaches maximum coupling, the other is reaching zero. The coupling can be in phase or out of phase so the resolver reading circuit needs to determine both amplitude and phase of the sensed outputs. There are several other ways to read position from resolvers, too. Pico Systems (my company) makes stand-alone converters to convert a resolver to quadrature plus index pulse. Since there are no electronics in the sensor, it is capable of handling oil, vibration and high temperatures. Jon -- Dive into the World of Parallel Programming The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Mill coordinates setup
Thank you. On 03/22/2015 06:13 PM, andy pugh wrote: On 23 March 2015 at 00:47, Allen aw...@mail.com wrote: I'd like to know more about the resolvers on your machine. Can you share what they are and how they work? Just ordinary resolvers in the motors. Connected to LinuxCNC with a Mesa 7i49. That should be a turnkey setup now. (It wasn't, I had to write three separate drivers, but they all exist now) -- Dive into the World of Parallel Programming The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Simple, adjustable timer
Consider monitoring the weight of the hopper as an indication of it's fullness. Omega Engineering has an entire catalog section on load cells and indicators. Strain gages are also a possibility. - Original Message - From: emc-users-requ...@lists.sourceforge.net To: emc-users@lists.sourceforge.net Sent: Sunday, March 22, 2015 1:03:39 AM Subject: Emc-users Digest, Vol 107, Issue 53 Send Emc-users mailing list submissions to emc-users@lists.sourceforge.net To subscribe or unsubscribe via the World Wide Web, visit https://lists.sourceforge.net/lists/listinfo/emc-users or, via email, send a message with subject or body 'help' to emc-users-requ...@lists.sourceforge.net You can reach the person managing the list at emc-users-ow...@lists.sourceforge.net When replying, please edit your Subject line so it is more specific than Re: Contents of Emc-users digest... Today's Topics: 1. Re: Simple, adjustable timer (Dave Cole) 2. Re: Simple, adjustable timer (Viesturs L?cis) 3. Re: Simple, adjustable timer (Chris Morley) 4. Re: Simple, adjustable timer (Dave Cole) 5. Re: Simple, adjustable timer (Dave Cole) 6. Re: Simple, adjustable timer (Viesturs L?cis) -- Message: 1 Date: Sat, 21 Mar 2015 14:11:17 -0500 From: Dave Cole linuxcncro...@gmail.com Subject: Re: [Emc-users] Simple, adjustable timer To: emc-users@lists.sourceforge.net Message-ID: 550dc255.9010...@gmail.com Content-Type: text/plain; charset=utf-8; format=flowed Ultrasonics work ok if the surface is relatively flat you are aiming at (like liquid level). Otherwise they are iffy. Another idea; Put a reflector in the grit tank on an angle so the grit falls off the reflector. Then use a standard light sensor aimed at the reflector in the tank. When it is covered with grit - the reflector is blocked. When the sand falls off the reflector the sensor sees the reflector and you can add more sand. I had to do something similar to measure the height of a dirt pile (a small one) for a farm machine. An ultrasonic didn't work for that application. I'd run the input to a unused Mesa 24 volt input and put some logic into Classic Ladder for a couple of timers to condition the input with time on and time off delays so you don't short cycle the grit loader. Or just tie it in via hal if no timers are required. Dave On 3/21/2015 12:24 PM, jrmitchellj . wrote: How about an ultrasonic range finder to watch how full the small hopper is? Ray --J. Ray Mitchell Jr. jrmitche...@gmail.com (818)324-7573 The things we admire in men, kindness and generosity, openness, honesty, understanding and feeling are the concomitants of failure in our system. And those traits we detest, sharpness, greed, acquisitiveness, meanness, egotism and self-interest are the traits of success. And while men admire the quality of the first they love the produce of the second. -John Steinbeck, novelist, Nobel laureate (1902-1968) On Sat, Mar 21, 2015 at 9:49 AM, Jon Elson el...@pico-systems.com wrote: On 03/21/2015 09:22 AM, Viesturs L?cis wrote: Hello! My customer acquired different abrasive hopper system for their waterjet and now they want me to implement some controls over it. I managed to do that, but the problem is that it can not be left in on state for extended time as it causes the abrasive overfill the small tank on abrasive regulator unit. There are no sensors or anything I could use, so currently my only idea is to turn it on and off on timely basis. There are long-range optical sensors that are used for this exact purpose. When the hopper is full, it blocks the light and shuts off the filling. These either have one unit and need a mirror on the far side, or they have two units, one sends the beam, the other senses it. We even have stuff like this on our electric garage doors to stop them when someone is under the door, so it is not real high-tech stuff. But, you can get modular electronic timers for general industrial control purposes. Some have dials, others have screwdriver slot adjustments or switches to set the time. Jon -- Dive into the World of Parallel Programming The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Dive into the World of Parallel Programming The
