Re: [Emc-users] Very neat idea of controlling the Z-level

2011-12-17 Thread andy pugh
On 17 December 2011 20:16, Michael Haberler mai...@mah.priv.at wrote: actually it probably can go into a kinematics module, like below Ideally you would pick up 3 fiducial marks and do a full 3D tilt and rotation compensation. (There already is a kins which corrects for somebodies twisted

Re: [Emc-users] Very neat idea of controlling the Z-level

2011-12-17 Thread andy pugh
On 17 December 2011 20:45, Viesturs Lācis viesturs.la...@gmail.com wrote: It seems to me that creating a mesh from probed points will require to extend EMC to be able to do so and then there needs to be some tool that reads that mesh and tells, what is Z in a given X,Y point. This is

Re: [Emc-users] Very neat idea of controlling the Z-level

2011-12-17 Thread andy pugh
On 17 December 2011 21:01, Michael Haberler mai...@mah.priv.at wrote: and, of course, come up with a good interpolation algorithm - but there's a large body of work there; for instance that is exactly the stuff the GIS folks use for map coloring from discrete digital height models Linear

Re: [Emc-users] rtapi kernel must be loaded?

2011-12-18 Thread andy pugh
On 18 December 2011 04:36, alice aliceyou...@localnet.com wrote: i go to the terminal to load rtapi as docs say cd emc2 halrun, then it gives error consistig of rtapi kernel not loaded. You don't need to cd to emc2, and halrun needs to be a command on a line by itself. i would include the

Re: [Emc-users] Very neat idea of controlling the Z-level

2011-12-18 Thread andy pugh
On 18 December 2011 04:38, BRIAN GLACKIN glackin.br...@gmail.com wrote: I am not good with programming, but I work with surfaces in mining applications all the time. Why not create an XY grid of the z surface and then load that into EMC much like one loads in a map for backlash. This is the

[Emc-users] Encoder Discs, possible collective order

2011-12-22 Thread andy pugh
I have been given a quote for electrochemical machining of an encoder for my project. http://www.photofab.co.uk/index.php/services/chemical-etch-photo-etch/ There is a £95 setup charge, then another £100 for a sheet of parts. I get 25 of my design (75mm dia) on a sheet, but only need 6 or so. The

Re: [Emc-users] Encoder Discs, possible collective order

2011-12-22 Thread andy pugh
On 22 December 2011 16:01, Roland Jollivet roland.jolli...@gmail.com wrote: These guys are on your turf too; http://www.precisionmicro.com/ This is an interesting process I hadn't heard of before: http://www.precisionmicro.com/49/processes/laser-evolved-electro-forming---leef -- atp The idea

Re: [Emc-users] Encoder Discs, possible collective order

2011-12-22 Thread andy pugh
On 22 December 2011 16:45, Anders Wallin anders.e.e.wal...@gmail.com wrote: a dream project of mine would be a telescope mount. To minimize tracking error one should measure the rotation directly on the geared axis (not the motor) and one wants maybe 4 million pulses (22 bits) per rev for

Re: [Emc-users] Calling a part file from another file

2011-12-23 Thread andy pugh
On 23 December 2011 20:13, BRIAN GLACKIN glackin.br...@gmail.com wrote: 2. If yes, what is the proper syntax. What you end up calling is a subroutine inside a file of the same name. So, the file foo.ngc would need to be in the path defined in your INI file, and would need to contain Ofoo sub

Re: [Emc-users] Making emc's backtrace show a line as wide as the (small) bit is cutting.

2011-12-25 Thread Andy Pugh
On 25 Dec 2011, at 03:46, gene heskett ghesk...@wdtv.com wrote: y current .ini base_period values are in the 35-40 u- second range. Is there enough processing time on a 1400mhz athlon to process that w/o any skips? Or would this be a case where a longer base period would actually give

Re: [Emc-users] Parport

2011-12-25 Thread Andy Pugh
On 25 Dec 2011, at 15:07, gene heskett ghesk...@wdtv.com wrote: oadrt probe_parport #loadrt hal_parport cfg=0x378 out loadrt hal_parport cfg=0xd000 out--this line setp parport.0.reset-time 2000 Do you have the addf parport.N.write base-thread line for each port?

Re: [Emc-users] Making emc's backtrace show a line as wide as the (small) bit is cutting.

2011-12-25 Thread Andy Pugh
On 25 Dec 2011, at 16:49, gene heskett ghesk...@wdtv.com wrote: The DIR column assignment seems backwards. It does always look that way, but is because the value of a parport pin is an output from the driver in to HAL. And vice-versa. Tracking the encoder counts should take very little

Re: [Emc-users] Syncronize speed of 5 VFD using MESA and EMC.

2011-12-25 Thread andy pugh
On 25 December 2011 21:52, himanshu bhatt bhatthiman...@gmail.com wrote: i just need to syncronize their speed only. How well do they need to be synchonised? What I would do, I think, is run one motor as a master in closed-loop speed control, then slave the other motors to its encoder counts

Re: [Emc-users] 5-axis table-table kinematics: G54 offsets

2011-12-26 Thread Andy Pugh
On 26 Dec 2011, at 15:06, Rudy du Preez r...@asmsa.co.za wrote: I tried to use a G54 in the GCODE for a C-axis offste - it did not seem to work. I will try again. As far as I know G54 only selects a coordinate system. If you want to put an offset into that (or any other) coordinate system

Re: [Emc-users] Another off the wall thought

2011-12-27 Thread andy pugh
On 27 December 2011 17:53, gene heskett ghesk...@wdtv.com wrote: Not having any really effective way to speed adjust this induction motor so the spindle can be effectively stopped in the last 1/4 turn to the end point, from perhaps 1000 rpm when doing small threads, may be making the problem

Re: [Emc-users] 5-axis table-table kinematics: G54 offsets (Viesturs)

2011-12-27 Thread andy pugh
On 27 December 2011 18:38, Rudy du Preez r...@asmsa.co.za wrote: I want to be able to use offsets of C (and possibly A) while in world mode. Whereas it works OK in joint coordinates with trivkins, it seems to function differently in world mode using XYZCkins What does XYZCkins do that

Re: [Emc-users] 5-axis table-table kinematics: G54 offsets

2011-12-28 Thread Andy Pugh
On 28 Dec 2011, at 05:52, Rudy du Preez r...@asmsa.co.za wrote: If I use a G55 of say G55 c45 nothing happens. ... I hope the problem is now clearer and look forward to some response Yes, I now understand that you want to pass a tool XYZAC to the G code and have EMC2 convert the A and C to

Re: [Emc-users] stepper power supply

2011-12-28 Thread Andy Pugh
On 28 Dec 2011, at 15:52, kqt4a...@gmail.com wrote: Would someone elaborate on this just a bit I am not questioning their response I just do not understand it I suspect that the 60% might be a diversity factor. www.wikipedia.org/wiki/Diversity_factor

Re: [Emc-users] Transformer Question

2011-12-29 Thread andy pugh
On 29 December 2011 19:36, Clint Washburn cl...@clintandheidi.com wrote: I am in the process of building a power supply for my lathe and need a big transformer for for the powersupply. Are you sure you need a transformer? You do need one if you want to ground-reference the servo power, but it

Re: [Emc-users] or4 ?

2011-12-29 Thread andy pugh
On 29 December 2011 23:04, Spiderdab 77...@tiscali.it wrote: Hi all, i need to compare 4 inputs into hal This might help, configured as an OR. http://www.linuxcnc.org/docview/html/man/man9/logic.9.html -- atp The idea that there is no such thing as objective truth is, quite simply, wrong.

Re: [Emc-users] or4 ?

2011-12-29 Thread andy pugh
On 29 December 2011 23:33, Spiderdab 77...@tiscali.it wrote: mmm, seems perfectly what i need. but i don't understand well how to write. is it right? loadrt logic count=1 personality=4,512 to have an or with 4 in and 1 out? 516, I think. -- atp The idea that there is no such thing as

Re: [Emc-users] or4 ?

2011-12-30 Thread andy pugh
On 30 December 2011 12:47, Viesturs Lācis viesturs.la...@gmail.com wrote: http://git.linuxcnc.org/gitweb?p=emc2.git;a=blob;f=src/hal/components/or2.comp Now last line is: FUNCTION(_) { out = in0 || in1; } For or4 it should be: FUNCTION(_) { out = in0 || in1 || in2 || in3; } To install it

Re: [Emc-users] hal_button as confirm data

2012-01-01 Thread Andy Pugh
On 1 Jan 2012, at 15:38, Spiderdab 77...@tiscali.it wrote: As there isn't an if statement as an hal rt component, how can i write this logic? I really can't realize.. maybe using sample_hold? (but i tried and it doesn't seem to work..) Spinbutton is Float, SampleHold is Int. You can do what

Re: [Emc-users] hal_button as confirm data

2012-01-01 Thread andy pugh
On 1 January 2012 16:47, Spiderdab 77...@tiscali.it wrote: Possibly 'cause my-kins-pin is a I/O pin? Yes, that will be a problem. I suggest you set it as an input pin, and insert code to trap and over-ride a zero value. -- atp The idea that there is no such thing as objective truth is,

Re: [Emc-users] hal_button as confirm data

2012-01-01 Thread andy pugh
On 1 January 2012 19:56, Spiderdab 77...@tiscali.it wrote: Curiosity: i copied the setup as IO from the tripod kins. do you know why that was set in that way? No, it puzzles me. There was a wholesale switch of many parameters to IO pins at some point. It does mean that you can net them as

[Emc-users] Surface-Mount

2012-01-02 Thread andy pugh
I have some surface-mount opto-sensors which have pads on the underside, but no pins as such. Can anyone suggest how to solder them to PCB pads? I currently have a soldering iron, blowtorch, gas cooker and a hairdryer, though I am not averse to buying other tools. -- atp The idea that there is

Re: [Emc-users] Surface-Mount

2012-01-02 Thread andy pugh
On 2 January 2012 15:46, Peter C. Wallace p...@mesanet.com wrote: A hair dryer is close but a little too cool. A hot air gun (the type used with heat-shrink tubing) will work. OK, one has been on my to-buy list for a while, but so far the hairdryer has worked. You will also want some solder

Re: [Emc-users] Surface-Mount

2012-01-02 Thread andy pugh
On 2 January 2012 16:01, Peter C. Wallace p...@mesanet.com wrote: To add to the fun, I have back-mounted optos too.. That does add to the fun... I hope they are not back to back. Guess what… One hopeful point is that I made the board pads oversize, so I might even be able to use a soldering

Re: [Emc-users] hal taking machine down

2012-01-02 Thread andy pugh
On 2 January 2012 18:46, Kenneth Lerman kenneth.ler...@se-ltd.com wrote: That will be the third such machine I have. It does have built-in video, but you don't have to use it. However, there is no reason not to use the built-in video with that card, it works fine. -- atp The idea that there

Re: [Emc-users] hal taking machine down

2012-01-02 Thread andy pugh
On 2 January 2012 19:12, gene heskett ghesk...@wdtv.com wrote: MBD-I-D525MWV         1       D525MWV Mini-ITX Motherboard    85.00 Does that include the lpt breakout kit? No need, the D525 has the LPT on the back panel, it's the purple one here:

Re: [Emc-users] hal taking machine down

2012-01-02 Thread andy pugh
On 2 January 2012 19:32, gene heskett ghesk...@wdtv.com wrote: On Monday, January 02, 2012 02:31:38 PM andy pugh did opine: However, there is no reason not to use the built-in video with that card, it works fine. And this is the foxcon board? No, this is the Intel BOXD525MW (but I think

Re: [Emc-users] hal taking machine down

2012-01-02 Thread andy pugh
On 2 January 2012 19:36, gene heskett ghesk...@wdtv.com wrote: http://www.suntekstore.co.uk/goods.php?id=10010116utm_source=gbuk It may be, but how long does it work with ext3?  I would rather have rotating storage I can count on for a year or so. I have been using an 8GB one of those to

Re: [Emc-users] Surface-Mount

2012-01-02 Thread andy pugh
On 2 January 2012 19:59, Mike Payson m...@dawgdayz.com wrote: Skillet/hotplate soldering works great for those situations: http://www.youtube.com/watch?v=Uov0SPHKcnk How do you spell Solder in the US? All the videos seem to pronounce it sodder whereas I have only ever heard it pronounced

Re: [Emc-users] hal taking machine down

2012-01-03 Thread andy pugh
On 3 January 2012 12:49, kqt4a...@gmail.com wrote: If I were wanting to build a new pc I would agree but I would like to improve the reliability of a decent machine I occasionally get rtai errors Will the Mesa hardware do this I have only stepper motors With Mesa/Pico cards you don't need

Re: [Emc-users] hal taking machine down

2012-01-03 Thread andy pugh
On 3 January 2012 14:30, kqt4a...@gmail.com wrote: Is mesanet.com the only source for the mesa hardware it appears that www.cnc-ready.at no longer exists. http://www.duzi.cz/shop_cnc/ still works though. -- atp The idea that there is no such thing as objective truth is, quite simply, wrong.

Re: [Emc-users] Compile - install new kinematic

2012-01-04 Thread andy pugh
On 4 January 2012 09:03, Tomaz T. tomaz_...@hotmail.com wrote: ERROR: Module hal_lib is in use by my5axiskins ERROR: Module rtapi is in use by hal_lib ERROR: Module rtai_math does not exist in /proc/modules ERROR: Module rtai_sem is in use by rtapi ERROR: Module rtai_fifos is in use by rtapi

[Emc-users] Riser for Intel Mini-ITX

2012-01-04 Thread andy pugh
I finally found a PCI riser that works with the mini-ITX Intel boards (D510 and D525) It puts the Mesa card over the motherboard, with the connectors facing up. http://www.ebay.co.uk/itm/PCIx1-2U-32Bit-Riser-PCITX4-2-Rev-B-/110793930515 The previous 2 I tried stopped the machine booting, and the

Re: [Emc-users] Riser for Intel Mini-ITX

2012-01-04 Thread andy pugh
On 4 January 2012 23:48, Eric Keller eekel...@psu.edu wrote: do you have any pictures of it set up? https://picasaweb.google.com/lh/photo/CQTCSBXP42w4qc8viPm_ztMTjNZETYmyPJy0liipFm0?feat=directlink (In that picture is the D510MO motherboard, PicoPSU, DOM SATA drive, 12V CPU, Arduino, resolver

Re: [Emc-users] a physicist's approach to the pronunciation of solder

2012-01-05 Thread andy pugh
On 5 January 2012 06:04, Kent A. Reed knbr...@erols.com wrote: Next discussion: why did the l reappear in spelling? It's amazing we manage to communicate at all given the twists and turns our languages have taken. I am reading a novel set in the Napoleonic war, and I was curious about the

Re: [Emc-users] Riser for Intel Mini-ITX

2012-01-05 Thread andy pugh
On 5 January 2012 01:59, Kent A. Reed knbr...@erols.com wrote: Did the flexible riser work for you before it started losing wires? How is it that it started losing wires? Do you mean conductors were breaking internally in the cable? breaking at the connector? . It was fine, though meant that

[Emc-users] An alternative way to make encoders.

2012-01-05 Thread andy pugh
I recently got some Avago AEDR8300K encoder sensors. These have two detectors in a small SMT package for quadrature in one device. http://www.avagotech.com/pages/en/motion_control_encoder_products/incremental_encoders/reflective_encoders/aedr-8300-1k0/My plan was to laser-print a target onto

Re: [Emc-users] Riser for Intel Mini-ITX

2012-01-05 Thread andy pugh
On 5 January 2012 10:39, Mark Wendt mark.we...@nrl.navy.mil wrote: How do you deal with the enclosure, getting the peripheral card ports so that they poke through to the exterior? Mainly by putting everything in one big box. I think it makes sense to treat the PC board as just another

Re: [Emc-users] Riser for Intel Mini-ITX

2012-01-05 Thread andy pugh
On 5 January 2012 13:41, Edward Bernard yankeelena2...@yahoo.com wrote: How do you deal with cooling issues having all that gear in one enclosure? I don't know yet. The actual servo drives will be external (and near the motors) though, so the only heat in there should be from the low-power

Re: [Emc-users] Riser for Intel Mini-ITX

2012-01-05 Thread andy pugh
On 5 January 2012 16:07, Dave e...@dc9.tzo.com wrote: The Intel bios has a display that will show you the CPU core temperature so you can get an idea of how efficiently your enclosure is keeping your PC boards cool. I think that there is a HAL module that links in to lmsensors to allow you to

Re: [Emc-users] Riser for Intel Mini-ITX

2012-01-06 Thread andy pugh
On 6 January 2012 10:27, Viesturs Lācis viesturs.la...@gmail.com wrote: How is 5i23 mounted? I do not see that it is fixed anywhere. In that picture it is just sat there in the PCI connectors. Since then I have added a bracket from the mounting holes onto the aluminium mounting plate. -- atp

Re: [Emc-users] Good latency results

2012-01-07 Thread andy pugh
On 7 January 2012 09:59, Alastair D'Silva alast...@d-silva.org wrote: If someone could point me to how to add this to the wiki, it would be appreciated. The page is here: http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Latency-Test You may see a small link at the bottom edit text of this page but

Re: [Emc-users] OT: HDMI to VGA Was RE: Ideal Atom?

2012-01-07 Thread andy pugh
On 7 January 2012 23:30, Ben Jackson b...@ben.com wrote: N.  DVI has pins in it (the 4 more widely spaced ones in a square on one end) which carry VGA.  Most (maybe all) display cards present normal analog VGA signals on those pins.  There are devices (DVI-D) which don't have those pins

Re: [Emc-users] An alternative way to make encoders. (Peter Blodow)

2012-01-07 Thread andy pugh
On 8 January 2012 01:33, Martin Patton mart...@gmail.com wrote: What rotary table is that on your mill?  Did you make the adapter for the stepper?  I want one of those. The table is one of these: http://www.ebay.co.uk/itm/RDGTOOLS-LATEST-HV4-ROTARY-TABLE-4-100MM-/290630172909 Though it isn't

Re: [Emc-users] An alternative way to make encoders. (Peter Blodow)

2012-01-08 Thread andy pugh
On 8 January 2012 14:02, gene heskett ghesk...@wdtv.com wrote: Because the coupling is replacing the handwheel, its placement controls the end play of the worm too I still am not sure which rotary he was on about, but as the title refers to encoders, and I started that thread with a video of my

Re: [Emc-users] An alternative way to make encoders.

2012-01-08 Thread andy pugh
On 8 January 2012 14:59, Joachim Franek joachim.fra...@pibf.de wrote: A temperature treatment of the lacquer at 190°C will result in durable inscriptions or graphics having a blackish- brown color It is worth remembering, though in my case I was much more concerned about reflectivity than

Re: [Emc-users] Commanded positions

2012-01-09 Thread andy pugh
On 9 January 2012 05:36, Farzin Kamangar farzin.kaman...@gmail.com wrote: commanded position is not right, but the actual position is correct. I was looking for an interface from emc.stat which can show the correct commanded position. Do you want to see the end-point of the current move? That

Re: [Emc-users] running headless on my ASUS AT5NM10-I MB (Intel Atom D510 cpu)

2012-01-09 Thread andy pugh
On 9 January 2012 18:20, Jon Elson el...@pico-systems.com wrote: and use any command-line program Keystick? Keystick, a character-based screen graphics program suitable for minimal installations (without the X server running). http://linuxcnc.org/docs/html/gui_keystick.html -- atp The idea

Re: [Emc-users] Compile - install new kinematic

2012-01-09 Thread andy pugh
On 9 January 2012 18:34, Francesca Sca fancy_...@yahoo.it wrote: cp armkins.ko /usr/realtime-2.6.32-122-rtai/modules/emc2/ armkins.ko in /home/cnc/emc2-dev/rtlib NOT FOUND! That seems a little odd. Are you running . ./emc2-dev/scripts/emc-environment before running comp? It looks like armkins

Re: [Emc-users] OT: HDMI to VGA Was RE: Ideal Atom?

2012-01-10 Thread andy pugh
On 10 January 2012 19:07, Kirk Wallace kwall...@wallacecompany.com wrote: I much prefer d-sub connectors. They're inexpensive, the ear screws are a positive closer, strain relief is robust, Also 7A per pin and 250V rated. I have mentioned them before, but PowerCON and Speakon connectors are

Re: [Emc-users] Correcting for workpiece warpage.

2012-01-11 Thread andy pugh
On 11 January 2012 05:53, gene heskett ghesk...@wdtv.com wrote: I've read the pages about mapping screws, but ANAICT, that can only correct the same axis for errors and wear in that axis's drive, but I don't see a way to make z move as y moves. Sounds like a job for probekins..

Re: [Emc-users] Servo drive?

2012-01-11 Thread andy pugh
On 11 January 2012 08:40, Viesturs Lācis viesturs.la...@gmail.com wrote: I have 3 servo motors and I am looking for appropriate servo drives for them. I have a serious problem finding a servo drives for these motors. I suppose you could try making your own?

Re: [Emc-users] Correcting for workpiece warpage.

2012-01-11 Thread andy pugh
On 11 January 2012 10:46, Viesturs Lācis viesturs.la...@gmail.com wrote: I just seem to have skipped, how exactly the surface mesh file is created by probing the surface in certain points. In this case gene can simply hand-edit an STL file. To generate one from probe data, one option would be

Re: [Emc-users] Servo drive?

2012-01-11 Thread andy pugh
On 11 January 2012 11:58, Viesturs Lācis viesturs.la...@gmail.com wrote: http://docs-europe.electrocomponents.com/webdocs/0dca/0900766b80dca34c.pdf On page nr 9 I found a scheme of Typical application connection. Do I understand correctly that anything within the blue frame already is on

Re: [Emc-users] Servo drive?

2012-01-11 Thread andy pugh
On 11 January 2012 14:11, Viesturs Lācis viesturs.la...@gmail.com wrote: Yes. I would suggest opto-isolators between the IRAMS and the 5i23 or whatever, though. Are You saying that optoisolator will not disturb PWM signal? Somehow I am convinced that it will... It shouldn't, much, if you

Re: [Emc-users] Correcting for workpiece warpage.

2012-01-11 Thread andy pugh
On 11 January 2012 19:30, gene heskett ghesk...@wdtv.com wrote: That sounds neat Kirk, and a hair dryer can supply the heat, I like that as I already have the milled flat wooden (and insulating) jig clamped up.  So the question then is what kind of wax?  Paraffin would soften a bit fast come

Re: [Emc-users] Correcting for workpiece warpage.

2012-01-12 Thread andy pugh
On 12 January 2012 07:22, gene heskett ghesk...@wdtv.com wrote: Apparently my freebie copy of eagle has timed out, the screen it opens is about 75% transparent and extremely bleached out, rendering it unusable. Have you tried DesignSpark under Wine? Though gEDA might be a better bet, being

Re: [Emc-users] Servo drive?

2012-01-12 Thread andy pugh
On 12 January 2012 11:49, Viesturs Lācis viesturs.la...@gmail.com wrote: Ok, I think that I finally got it - the heatsink is under the board and only its very black side can be seen... Yes, that was the main change. How big was that motor? It was a 2HP motor. On reflection, I probably

Re: [Emc-users] Servo drive?

2012-01-12 Thread andy pugh
On 12 January 2012 15:02, Viesturs Lācis viesturs.la...@gmail.com wrote: How do I determine, what size capacitors should be used? Right on the rectifier and also for those boot-strap capacitors? On the basis of maximum current draw and allowable ripple. And capacitor ESR too. What is that on

Re: [Emc-users] Servo drive?

2012-01-12 Thread andy pugh
On 12 January 2012 15:27, andy pugh bodge...@gmail.com wrote: Is it supposed to receive any additional 5V, 12V or something similar for logic power? Yes, Vdd. On reflection, it might be wise to use a DC/DC convertor for Vdd, so that it has a floating, isolated logic power, that can be safely

Re: [Emc-users] Servo drive?

2012-01-12 Thread andy pugh
On 12 January 2012 15:43, Viesturs Lācis viesturs.la...@gmail.com wrote: On reflection, it might be wise to use a DC/DC convertor for Vdd, And how much would such a convertor cost? I would need to convert 330VDC to 12VDC. I was meaning a 12 to 12 (or 12 to 15) one, like

Re: [Emc-users] Correcting for workpiece warpage.

2012-01-12 Thread andy pugh
On 12 January 2012 17:55, gene heskett ghesk...@wdtv.com wrote: That still needs the chemistry.  Lets just say that disposing of about 3 gallons of well spent ferric chloride, diluted with at least 1000 gallons of water, was sufficient to put a new medium sized cities sewage plant that had

Re: [Emc-users] Servo drive?

2012-01-12 Thread andy pugh
On 12 January 2012 18:14, Viesturs Lācis viesturs.la...@gmail.com wrote: I was meaning a 12 to 12 (or 12 to 15) one, like http://uk.rs-online.com/web/p/dc-dc-converters/6727408/ That gives the IRAMS board an isolated 15V supply, Thanks for the link! I have a feeling that that might not

Re: [Emc-users] gEDA / Correcting for workpiece warpage.

2012-01-12 Thread andy pugh
On 12 January 2012 19:36, kqt4a...@gmail.com wrote: Like you I tried several circuit board design tools and settled on gEDA suite Easy to learn, very configurable, and lots of symbols at www.gedasymbols.org I am just looking at it now. It has the _huge_ advantage of running natively on my

Re: [Emc-users] gEDA / Correcting for workpiece warpage.

2012-01-13 Thread andy pugh
On 13 January 2012 11:16, kqt4a...@gmail.com wrote: I use pcb2gcode with gEDA files without any problems Very good utility, easy to use As it claims to output EMC2-ready G-code, presumably it could be used as an EMC2 filter file, so that EMC2 can dimply open Gerbers? -- atp The idea that

[Emc-users] Analogue inputs into EMC2.

2012-01-13 Thread andy pugh
I had an idea of a way to measure analogue voltages with EMC2 a few days ago. It ought to be possible for a HAL module to send a sawtooth PWM signal on an output pin, and monitor one or more input pins. Externally a PWM-voltage conversion circuit and a bank of comparators would switch the input

Re: [Emc-users] steppers

2012-01-13 Thread andy pugh
On 13 January 2012 17:09, Cathrine Hribar bhri...@bresnan.net wrote: My controller is, like yours, 2.8 amp limit. As I think about it, if the steppers are wired in series, like I wired mine, they would require twice as much current to give the most torque, right?. No. In series you get twice

Re: [Emc-users] New thread, visolate

2012-01-15 Thread andy pugh
On 15 January 2012 20:50, gene heskett ghesk...@wdtv.com wrote: Now, what do most of you folks use for converting an eagle's 'excellon' drill file to gcode? If you install Octave, you could use this that I wrote for the job: function Excellon2Gcode(filename) i = 1; C = []; f =

Re: [Emc-users] tapping problem?

2012-01-16 Thread andy pugh
On 16 January 2012 05:42, a...@conceptmachinery.com wrote: i there spindle motor and motor drive that can be better used for tapping? You can monitor motor current on any drive, sometimes it is built in to the drive, but otherwise there are various forms of current sensing element that can be

Re: [Emc-users] Dapatkan akses ke foto-foto saya dan lain-lainnya

2012-01-16 Thread andy pugh
On 16 January 2012 10:11, gene heskett ghesk...@wdtv.com wrote: Well, I don't believe this is Navajo.  It looks like bayes poison to me. Spam IOW. Or possibly one of our subscribers has accidentally sent an invitation to his entire contacts database. I did that with LinkedIn, which was

Re: [Emc-users] EMC2 and LabVIEW

2012-01-16 Thread andy pugh
On 16 January 2012 09:04, Andrew parallel.kinemat...@gmail.com wrote: Thanks, I'm afraid it's too complicated for us. We desided to start with Adlink PCI-8136 card which has 6 encoder inputs and 6 analog outputs. Maybe later it will be possible to think about drivers for a MESA card. It is

Re: [Emc-users] Software stepgen through Mesa GPIO pins

2012-01-16 Thread andy pugh
On 16 January 2012 15:44, Viesturs Lācis viesturs.la...@gmail.com wrote: How can I do software step generation and export it through gpio pins on 5i23? You will need to add the hm2_5i23.0.write_gpio function to the base thread (and you will need a base thread) -- atp The idea that there is no

Re: [Emc-users] steppers

2012-01-16 Thread andy pugh
On 16 January 2012 22:06, Cathrine Hribar bhri...@bresnan.net wrote: are u saying that the nema 34 would be equal to a nema 23 three stack? Three-stack steppers in 23 size seem to be quite slow. I haven't ever tried a 34, but I understand that they have the same problem. I think you need to

[Emc-users] PC shutdown

2012-01-18 Thread andy pugh
I have a D510 + PicoPSU system. The PC shuts down as expected, but I would rather like it to power-off the power supplies and monitor too. Has anyone set up such a system? I am thinking in terms of a relay controlled by the PicoPSU 5V or 12v output to switch the 240Vac with a momentary switch in

Re: [Emc-users] PC shutdown

2012-01-18 Thread andy pugh
On 18 January 2012 13:28, James Louis james.lo...@gastechnology.org wrote: My Servomill also runs on a D510MO and it is plugged into the master outlet of a power strip called an Eco-strip I don't think that will work for me, as the main thing I want to do is turn of the 12V PSU which powers

Re: [Emc-users] LinuxCNC: The new name of the Enhanced Machine Controller

2012-01-18 Thread andy pugh
On 18 January 2012 02:16, Chris Radek ch...@timeguy.com wrote: LinuxCNC is the best option, as this has been our website's name for years. Ah well, I was probably never going to get it to compile on MacOS anyway…. -- atp The idea that there is no such thing as objective truth is, quite

Re: [Emc-users] Changing the scale factor of an axis

2012-01-18 Thread andy pugh
On 18 January 2012 20:41, Lars Andersson l...@larsandersson.com wrote: This is not allowed, stepgen.3.position-scale is a parameter, not a pin You could put a scale component between the axis and the stepgen. I think, though, that you might have more luck putting the A stepgen into velocity

Re: [Emc-users] Hackaday posted a link to a build for a VFD

2012-01-19 Thread andy pugh
On 19 January 2012 17:43, Kyle Kerr ker...@gmail.com wrote: I see a number of posts on this list regarding VFDs that I thought I would share this bit of information in case it was not on your radar. http://hackaday.com/2012/01/19/building-a-variable-frequency-drive-for-a-three-phase-motor/

Re: [Emc-users] Changing the scale factor of an axis

2012-01-19 Thread andy pugh
On 19 January 2012 20:43, Lars Andersson l...@larsandersson.com wrote: I think I will try to change the A-axis to velocity mode and put a HAL component in series that takes the derivative of commanded position That might not be necessary, you can probably use the existing axis velocity pin.

Re: [Emc-users] Control a hot wire foam cutter using LinuxCNC?

2012-01-19 Thread andy pugh
On 19 January 2012 21:14, Florian Rist fr...@fs.tum.de wrote: What would you think makes more sense as tool path specification, a x/y positions and three angels or two x/y positions and one angel? I would go for XY and angles. You can't do (G3, G2) curves in UV, and using angles instead

Re: [Emc-users] Control a hot wire foam cutter using LinuxCNC?

2012-01-20 Thread andy pugh
On 20 January 2012 15:14, Florian Rist fr...@fs.tum.de wrote: Does anyone know how axis might be used to visualise the tool path and the machine? Sammel has been working on this: http://www.youtube.com/watch?v=TWOzqALWa3c patch:

Re: [Emc-users] VFD + Induction motor closed position loop

2012-01-20 Thread andy pugh
On 20 January 2012 21:09, Leonardo Marsaglia leonardomarsagli...@gmail.com wrote: Thank you Les and Robert for your answers. So, the best option is brushed DC motors Brushless are good too, if they come with drives. There are also generic EMC2-compatible brushless drives from Pico and Mesa. --

Re: [Emc-users] Control a hot wire foam cutter using LinuxCNC?

2012-01-21 Thread andy pugh
On 21 January 2012 15:26, Florian Rist fr...@fs.tum.de wrote: A nice feature of this machine is, that is uses a strain gauge to measure the tension of the cutting wire and to control a motor to automatically adjust the wire length to maintain a certain tension. I wonder if you could monitor

Re: [Emc-users] Rotary homing.

2012-01-21 Thread andy pugh
On 22 January 2012 01:27, John A. Stewart astew...@crc.ca wrote: Here is my hand-edited ini file - any silly/obvious mistakes here? Does it actually have a homing switch or not? -- atp The idea that there is no such thing as objective truth is, quite simply, wrong.

Re: [Emc-users] pyvcp and/or Axis bug?

2012-01-21 Thread andy pugh
On 22 January 2012 02:01, Tom Easterday tom-...@bgp.nu wrote: Also, if you select one of these items and change it's value using the keyboard numbers, it will not be saved unless you click an up or down arrow selection I think that the fact that you can type into the scrollboxes is

Re: [Emc-users] question on gcode parsing

2012-01-21 Thread andy pugh
On 21 January 2012 15:31, Scott Hasse scott.ha...@gmail.com wrote: To that end, I'm wondering if there is a typical approach to parsing and validating arbitrary-format gcode into some sort of canonical form There is a standalone interpreter in the LinuxCNC source, though I am not sure what it

Re: [Emc-users] Rotary homing.

2012-01-22 Thread andy pugh
On 22 January 2012 03:51, John Stewart alex.stew...@crc.ca wrote: Does it actually have a homing switch or not? I read somewhere that the HOME_SEQUENCE=-1 told LinuxCNC (smile) not to home.  Am I correct in that assumption? Yes, but that leaves the axis unhomed, whereas you want it to home

Re: [Emc-users] VFD + Induction motor closed position loop

2012-01-22 Thread andy pugh
On 22 January 2012 23:20, Leonardo Marsaglia leonardomarsagli...@gmail.com wrote: I'm curious about the 8i20 card. Does this card handle the PID calculations? That card does hardly any calculations at all. It takes current and phase angle information from EMC2/linuxCNC via a serial link. The

Re: [Emc-users] VFD + Induction motor closed position loop

2012-01-22 Thread andy pugh
On 22 January 2012 23:56, Leonardo Marsaglia leonardomarsagli...@gmail.com wrote: Andy thanks for your explaination about the 8i20 card. So, this card used with LinuxCNC and hostmot2 will work well to drive a servo for accurate positioning. Right? It _should_. I can't say for certain that it

Re: [Emc-users] question on gcode parsing

2012-01-23 Thread andy pugh
On 23 January 2012 06:03, Michael Haberler mai...@mah.priv.at wrote: A prettyprinter might use whitespace to improve output readability, that's all Does anyone else indent their loops and subs in G-code? -- atp The idea that there is no such thing as objective truth is, quite simply, wrong.

Re: [Emc-users] installing 2.5 in simulation mode, not working

2012-01-23 Thread andy pugh
On 23 January 2012 06:19, Tom Easterday tom-...@bgp.nu wrote: I am trying to install 2.5 under 10.04 running under Parallels on my Mac.  I followed the instructions (related to installing -sim) here:   http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Installing_EMC2#Building_emc2_simulator ... why

Re: [Emc-users] Help with a GladeVCP startup error message

2012-01-23 Thread andy pugh
On 23 January 2012 02:14, Steve Blackmore st...@pilotltd.net wrote: Your not on your own John!!  EMC, or should I now say LCNC, is written and annotated by Linux gurus That is not entirely true, I don't even know how to rename a file in Linux, but I have written some of the code, and

Re: [Emc-users] 2.5 run-in-place or not

2012-01-23 Thread andy pugh
On 23 January 2012 01:46, Tom Easterday tom-...@bgp.nu wrote: We currently have to open a terminal, cd to ~/emc2/emc2-dev/ and do a . scripts/environment and then run emc. If you look at the icon properties you can see the command line that they run, and edit that to point at the run-in-place

[Emc-users] Beagleboard

2012-01-23 Thread andy pugh
I have a friend involved in the Yocto embedded Linux project, he said the following: I'm afraid I don't know the status of rt-preempt on beagle. Its not something that is on the official test matrix so it might work or it might not :/. I did ask around but nobody is giving me indications one way

Re: [Emc-users] [Emc-developers] Open letter to the EMC Board of Directors

2012-01-23 Thread andy pugh
On 23 January 2012 21:46, Chris Morley chrisinnana...@hotmail.com wrote: I will add my voice at least so Michael knows he is not the only one who feels this way. And I. It seems almost impossible to get any idea what ideas are worth developing, or which direction to go. It is very difficult to

Re: [Emc-users] OT: Possible Retrofit candidate for someone in the heartland

2012-01-24 Thread andy pugh
On 22 January 2012 08:07, a...@conceptmachinery.com wrote: why retrofit bridgeport machine when one can buy cnc machine X 50 Y 26 travel CNC mill for $6.5 k That machine cost $85k new, so the standard of bearings, castings, screws etc is likely to be a lot better than a built-down-to-a-price

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