Re: [Emc-users] Metric
Andy wrote...<< You can also find most sizes from 0.10 inch (.254mm) up in the table on my website at http://tinyurl.com/mhmc27 . This information is also down-loadable as an Excel file if you want to keep a copy in the workshop. Ian -- Crystal Reports - New Free Runtime and 30 Day Trial Check out the new simplified licensing option that enables unlimited royalty-free distribution of the report engine for externally facing server and web deployment. http://p.sf.net/sfu/businessobjects ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Metric
Jack wrote: <<<>>> The French tried it during the French Revolution when it was mandated by a decree on 5 Oct 1793. It was brought into use in 1794 and abandoned in 1795 The Chinese used a decimal time system alongside a duodecimal one for two or three thousand years. Their day was divided into 100 parts and also, optionally, into 12 double hours. The 100 parts were subdivided into 60 smaller parts. Their months were split into three periods of 10 days which they called xun and this is a term still used in some official documents. The 100 part day was dropped in the 17th century under the influence of Europeans and was changed instead to 96 parts. More recently, in 1998, Swatch tried to introduce a decimal time system which they called 'Swatch Internet Time' and which had 1000 'beats' per day. Like every other system, it didn't catch on. Best wishes Ian - Ian W Wright Sheffield UK -- Crystal Reports - New Free Runtime and 30 Day Trial Check out the new simplified licensing option that enables unlimited royalty-free distribution of the report engine for externally facing server and web deployment. http://p.sf.net/sfu/businessobjects ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Metric
Jack wrote... <<<>> Why do programmers always get Christmas and Halloween mixed up? Because DEC 25 = OCT 31 Ian -- Crystal Reports - New Free Runtime and 30 Day Trial Check out the new simplified licensing option that enables unlimited royalty-free distribution of the report engine for externally facing server and web deployment. http://p.sf.net/sfu/businessobjects ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Metrics
Andy Pugh wrote: <>> What's one of those Andy? ;-) - Oh, maybe you mean Metre and not something for measuring with... time someone standardised the 'English' language ( and yes, I did spell 'standardised' correctly!) I think you will find that the International Master Kilogram IS getting lighter due to 'corrosion' and atoms being knocked off by cosmic rays etc... Also, the International time standard is not one Rubidium-based clock but the average time of about 300 Caesium clocks distributed around the world. Of course, comparing these clocks is not easy as their time has to be relayed to a central point by satellite and the time for the signal to reach the satellite and bounce back to earth can vary dependent upon weather conditions, solar wind etc.. Another thing, of course, is that you can never know the exact time at any particular point in your travel through life because, while you are reading it, that time has passed and so, all-in-all, time is really just a guess at an arbitrary number. As an horologist, time is MY hang-up I'm afraid... Best wishes, Ian Ian W. Wright Sheffield UK at " 11:45 and twenty seconds precisely.." -- Crystal Reports - New Free Runtime and 30 Day Trial Check out the new simplified licensing option that enables unlimited royalty-free distribution of the report engine for externally facing server and web deployment. http://p.sf.net/sfu/businessobjects ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Metrics
> back that metric is scientific measurement because it is a part of the > > circumference of the world. That may matter to a map maker but I don't <<<>>> In actual fact, the metre has no relationship to any physical thing. It arose as a 'standard' measurement in 1791 after the French revolution when King Louis XVII instructed the French Academy of Sciences to define a standard metre. They decided that it should be One ten-millionth of the distance from the North Pole to the Equator measured on a line which passed through Paris. Unfortunately, even though the best minds in Paris at the time spent about four years working on this, they failed to allow for the flattening of the earth near the poles and so got the measurement wrong. At about the same time both the UK and the US were also proposing a change to metric measurements and Thomas Jefferson made a report to Congress on 4the July 1790 with such proposals. If this had been accepted, the standard measures would have been:- "Let the foot be divided into 10 inches; The inch into 10 lines; The line into 10 points; Let 10 feet make a decad; 10 decads one rood; 10 roods a furlong; 10 furlongs a mile. " If you want to read the whole transcript of the report, you can find it here.. http://tinyurl.com/mc7zlz Best wishes, Ian Ian W Wright Sheffield UK -- Crystal Reports - New Free Runtime and 30 Day Trial Check out the new simplified licensing option that enables unlimited royalty-free distribution of the report engine for externally facing server and web deployment. http://p.sf.net/sfu/businessobjects ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Metricks - Mill-Drill needs steppers and servos?
Jack wrote <<< You sure its about 2.54mm and not 2.55mm? My thumb is maybe wider than yours this illustrates one of the sillinesses of our use of the metric system - 1 inch is a good approximation but 2.54mm is not an approximation, its a direct conversion from an inch and accurate to 4 thou. This way of working leads to many similarly silly measurements appearing in the real world. In a previous post I mentioned bricks - in the previously Imperial world of the UK, their size was set such that the brick plus a normal thickness mortar joint below and to one side would form a convenient modular size. Only now, after almost 40 years, are bricks readily available in truly metric sizes but, while that is good for new-builds, they don't blend in with older brickwork and so you see walls with ugly infill panels where the mortar joints are almost as wide as the bricks! The metric system also seems to encourage a sloppy attitude which can easily lead to errors - decimal points in the wrong place or verbal use of the wrong units. Being involved with a local primary school, I have a constant battle with both children and teachers to get them to understand precision. For some unknown reason, about half the British public would say 2.54 as two point fifty-four - you even hear such rubbish on TV quite regularly, particularly on children's programmes. When I hear this at school I always ask - right, well which is the bigger then, two point fifty-four or two point a hundred and twenty-five? Most times I just get a glazed look and complete lack of comprehension!!! This may be a pet peeve of mine but it is the kind of stupidity the metric system encourages that ultimately leads to things like shuttle disasters.. Having said that, I use the metric system all the time - except for my weight which is in stones and pounds, pounds and ounces for cooking, miles and furlongs for distance and miles-per-gallon for fuel economy although I do have to buy my fuel in Litres as, I guess, the fuel companies have worked out that a price rise of a penny-per-litre would not have the same shock effect and backlash as a rise of 4 1/2 pence-per-gallon ( I wonder, is the US liter different from the UK litre just as the US gallon is?) - oh, and its still cheaper to buy some types of steel rod in 'standard' Imperial sizes rather than metric. ;-) Best wishes, Ian --- Ian W Wright Sheffield UK -- Crystal Reports - New Free Runtime and 30 Day Trial Check out the new simplified licensing option that enables unlimited royalty-free distribution of the report engine for externally facing server and web deployment. http://p.sf.net/sfu/businessobjects ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Mill-Drill needs steppers and servos?
Andy Pugh wrote> Ian W. Wright > > Sheffield ?UK <>> Hi Andy, No direct connection with the uni I'm afraid although I did have several friends working there and used to do a bit of trawling through the skips round the back ;-) Ian -- Crystal Reports - New Free Runtime and 30 Day Trial Check out the new simplified licensing option that enables unlimited royalty-free distribution of the report engine for externally facing server and web deployment. http://p.sf.net/sfu/businessobjects ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Mill-Drill needs steppers and servos?
John wrote... <<>>> Interesting maths but what would the effect of changing temperature be - which would be the more stable, he belt or the ballscrew? Best wishes, Ian - Ian W. Wright Sheffield UK -- Crystal Reports - New Free Runtime and 30 Day Trial Check out the new simplified licensing option that enables unlimited royalty-free distribution of the report engine for externally facing server and web deployment. http://p.sf.net/sfu/businessobjects ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Inspiration please......
Thanks for these links guys - I'll follow them up.. Best wishes, Ian --- Ian W Wright Sheffield UK -- Register Now for Creativity and Technology (CaT), June 3rd, NYC. CaT is a gathering of tech-side developers & brand creativity professionals. Meet the minds behind Google Creative Lab, Visual Complexity, Processing, & iPhoneDevCamp as they present alongside digital heavyweights like Barbarian Group, R/GA, & Big Spaceship. http://p.sf.net/sfu/creativitycat-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Inspiration please......
Hi, I'm looking for inspiration as to how I can use a 12 volt 6-8 Amp motor to drive my mini-mill spindle. I'm currently using an old mains voltage teleprinter motor which, although it does the job admirably, is as noisy as hell and I have to leave the room while it screeches away. I've now got this nice little 12 pole 12 volt motor which should do the job better and quieter but, while I am fitting it, I would like to get some automatic control over its speed. So, does anyone know of any schematics/circuits which I could build to allow me to hook the motor up to EMC2 and send it meaningful M3 / M4's? Ian Ian W. Wright Sheffield UK -- Register Now for Creativity and Technology (CaT), June 3rd, NYC. CaT is a gathering of tech-side developers & brand creativity professionals. Meet the minds behind Google Creative Lab, Visual Complexity, Processing, & iPhoneDevCamp as they present alongside digital heavyweights like Barbarian Group, R/GA, & Big Spaceship. http://p.sf.net/sfu/creativitycat-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Datron Pulsed Ethanol Mist
Sounds like time to dust off the old moonshine still;-) Ian -- Register Now for Creativity and Technology (CaT), June 3rd, NYC. CaT is a gathering of tech-side developers & brand creativity professionals. Meet the minds behind Google Creative Lab, Visual Complexity, Processing, & iPhoneDevCamp as they present alongside digital heavyweights like Barbarian Group, R/GA, & Big Spaceship. http://p.sf.net/sfu/creativitycat-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Linux installation problem
Jim Fleig wrote:PS (My attempt to replace a previous
version of Ubuntu with 8.04 has resulted in the following
error message: Disk Boot Failure, Insert System Disk and
Press Enter. Prior to installing the 8.04 version the hard
drive was scrubbed with DBAN. I have tried several things
that I found on the internet (more than a few people have
had the same problem) but have yet to solve the problem. It
seems that the hard drive needs to be formatted. I have
tried to find a format utility that will fit on a floppy.
The computer will still boot from the floppy. I haven't
been able to find that utility yet. This is where I so
often find myself. The computer will not work and I spend
hours wrestling with the computer instead of doing whatever
it was I wanted to do with the computer. This is where I
need tech support.)
Hi Jim,
Have you made the computer boot from a CD - this would be
your best option to start with. As the machine boots up,
look on the first screens for an instruction how to get into
the BIOS - probably F2. Find the part which deals with Boot
options ('advanced' tab probably) and set the first boot
option to CD = you can make the first hard drive the second
boot option. Now if you boot the computer from the Ubuntu
CD, this should deal with all the partitioning and
formatting of the hard drive as it installs the product. If
this isn't possible, then you need to look for a partition
manager such as Partition Magic or Ranish.
Best wishes,
Ian
_
Ian W. Wright
Sheffield UK
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Re: [Emc-users] Stepper drivers
Ian, I think it's great that you would build your own driver. But to do so is not for the sake of saving money. Maybe as a learning excersize, but not to save money.>>> Thanks for the replies guys - from all the traffic I seem to have generated, I guess I may have bitten off more than I can chew at present. I do have a couple of real simple driver boards which will drive the motors but they, and particularly the motors, get hot as hell when the motors are not moving and I was a bit afraid that they may fry themselves. I had hoped that there may be a relatively easy way to do a chopper drive with current control - I had naively thought that maybe it would be possible to grab a current reference from a higher powered FET output stage ( maybe driven by the existing output FETs/ Transistors) and feed that back into one of the 'standard' microstepping designs - perhaps even using another PIC chip as the current controller. As I said before, I guess I'm somewhat out of my depth here and since, while the 'spares box' is full of electronics bits, the bank is somewhat depleted, it looks like I may just have to root out a few big fans and go with what I've got -- Best wishes, Ian Ian W. Wright Sheffield UK "The difference between theory and practice is much smaller in theory than in practice..." - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Stepper drivers
Hi, I'm considering cnc'ing my Harrison Lathe and have a couple of steppers which will do the job nicely. However, they take about 4.5AMPs and I'm having difficulty finding a driver circuit to control them with. Due to very limited funds I'd like to build the drivers myself and I'm thinking that a PIC controlled microstepping driver would be nice. The primary sticking point at the moment is that I can't find any decent information on how I might incorporate current limiting and 'off-use current setback' into a design. there are one or two circuits on the web for PIC based microstepping drivers but they all seem to be limited to about 2Amp output with no indication that I could beef up the FETs without everything toasting itself. I'm not too well clued up on this type of electronics so any help you could give would be very much appreciated or, if you could point me to a web resource which would help me, I would be very grateful. Thanks.. -- Best wishes, Ian Ian W. Wright Sheffield UK "The difference between theory and practice is much smaller in theory than in practice..." - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] booting PC
HI, I just rebuilt a PC which had died and I have put both windows XP and Ububtu on it - its all working fine but I'd like to change the order of the boot options in the initial startup screen. I installed WinXP first and then auto installed Ubuntu and so the startup screen has Ubuntu as the first 4 or 5 options and then winXP at the bottom - I'd like winXP first as that will probably get used most for design work before switching to Ubuntu to do the magic. So, can anyone please point me to the relevant config file or whatever to change the order... Thanks.. -- Best wishes, Ian Ian W. Wright Sheffield UK "The difference between theory and practice is much smaller in theory than in practice..." - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Encoders
Hi, I have a couple of servo motors out of an old Olivetti printer which I'd like to try to use, however, I can't find any information about the encoders fitted to them. The encoders are in flat brown plastic enclosures on the end of the motors and have 7 pin plugs with 6 wires connected (the motor power wires are separate). Looking inside there appears to probably be 3 photo sensing elements and a clear plastic encoder disk with, I think, 100 prismatic lumps on it and so I assume that the 6 wires must somehow represent a quadrature encoder with index mark - or maybe a quadrature encoder with two power connections - I don't know. Has anyone come across this type of motor and worked out the connections or is there some way I could work it out for myself?? thanks. -- Best wishes, Ian Ian W. Wright Sheffield UK "The difference between theory and practice is much smaller in theory than in practice..." - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Installing emc2 on Compact Flash drive
It would be nice if someone would put up an image somewhere which could just be written to a flash drive - it would save other people a lot of trouble and would probably save us from having a lot of questions on the list when people's compilations go wrong... -- Best wishes, Ian Ian W. Wright Sheffield UK "The difference between theory and practice is much smaller in theory than in practice..." - Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] spring loaded engraving tool
Hi Dean, If you go to Freepatentsonline.com and register there you can do a search for 'spring loaded engraving toolholder' which will give you a couple of pdf files of the patents for a tool like the one you linked to with drawings etc - I believe you can make a copy of any patented device for your own use so long as it never gets sold -- Best wishes, Ian Ian W. Wright Sheffield UK "The difference between theory and practice is much smaller in theory than in practice..." - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] G-code subroutines
Hi, I'm completely confused with G-code subroutines or, more particularly with the possibilities of nesting them. What I am trying to achieve - and failing miseably - is to write a generic script which will cylindrically grind a shaft to several diameters and each of different lengths. I want to be able to enter into a set of variables the various diameters and lengths and have the script sort out the rotations of my 'A' axis and step the grinding wheel along the right number of times to get the full length (I'm only at roughing cut stage - I haven't even considered a finishing cut yet). So, I can set the starting diameter, ending diameter and depth of cut and work out the number of turns of A necessary and put that in a subroutine (maybe called 'cut' or something similar). However, I next want to move the grinding wheel along and repeat the same cut several times to achieve the full length (the grinding wheel being less in width than the cut length). This would seem like another subroutine doing a 'while less than' loop but it then wants to call the first subroutine to make the cuts. From the documentation the WIKI says that:- * Subroutine declarations may NOT be nested. * Subroutines may be called anywhere (but must be declared before they are called. They may be called from other subroutines, and may be called recursively if it makes sense. * while and if may be nested. They may not overlap without nesting. I don't think I fully understand this - can I call one subroutine from within another or not?? If not, how could I achieve what I want to? Thanks, -- Best wishes for whatever your holiday season is and my good wishes for a peaceful and prosperous new year, Ian Ian W. Wright Sheffield UK "The difference between theory and practice is much smaller in theory than in practice..." - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Befuddled by Wine!
Hi, I was trying to get my head round the concept of 'virtual machines' the other day and failed to understand just how they work - do you have to install the other operating system on the machine you are using the virtual software on - ie. if you want to run a windoze program on a linux machine using Wine - do you have to load a version of windoze also or does the Wine prog do some magic? Please explain to yet another senior citizen...! -- Best wishes, Ian Ian W. Wright Sheffield UK "The difference between theory and practice is much smaller in theory than in practice..." - SF.Net email is sponsored by: The Future of Linux Business White Paper from Novell. From the desktop to the data center, Linux is going mainstream. Let it simplify your IT future. http://altfarm.mediaplex.com/ad/ck/8857-50307-18918-4 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Subject: (no subject)
Mick, Have you tried running the EMC2 cd as a Live cd - that is, don't install it, just put the CD in the drive - it should start up and give you the Ubuntu screen from which you should be able to run EMC2 from the file menu. It will run much slower than normal but if it runs from here, it should run from an install. One thing you could check is whether your screen resolution etc. is set right - video cards can give all sorts of wierd problems. Also, are you accepting the default repartitioning of your hard drive? -- Best wishes, Ian Ian W. Wright Sheffield UK "The difference between theory and practice is much smaller in theory than in practice..." - SF.Net email is sponsored by: The Future of Linux Business White Paper from Novell. From the desktop to the data center, Linux is going mainstream. Let it simplify your IT future. http://altfarm.mediaplex.com/ad/ck/8857-50307-18918-4 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] stepper and servo
Thanks to all who have replied - both on and off list. I'd better start reading up - and being nice to the domestic chancellor!! -- Best wishes, Ian Ian W. Wright Sheffield UK "The difference between theory and practice is much smaller in theory than in practice..." - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] stepper and servo
Hi, This is probably a silly question but is it possible to mix stepper and servo drives on one machine? I'm a bit tight on funds just now but I would really like to get a bit more speed out of my rotary axis so that I can use it for screwcutting. I can screwcut on it now using its present stepper drive but it is SO pedestrian. I would be thinking of using a Gecko 320 which seems to act like a stepper but I'm not sure if the axes would still maintain their coordination one to another - am I talking rubbish?? -- Best wishes, Ian Ian W. Wright Sheffield UK "The difference between theory and practice is much smaller in theory than in practice..." - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Axis Jog Speed
Thanks guys, I had altered the [TRAJ] MAX_VELOCITY and DEFAULT_VELOCITY a bit, partly because I read in one of the recent posts that it should be more than the individual axis MAX_VELOCITY, however, I didn't think I had changed it so much and it then got pared back until all the axes would run happily in a G0 situation. It was only late that I noticed that the jog speed which was indicated by AXIS was showing 300mm/min for the linear axes and 5000 degrees?/min for the angular axis. The system will only jog reliably at a little over half these speeds - so, the next question is, what is the difference between the speed in a G0 move? -- Best wishes, Ian Ian W. Wright Sheffield UK "The difference between theory and practice is much smaller in theory than in practice..." - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] jog speeds
HI, What actually controls the jogging speed? - I'm sure I knew but my brain is in Estop just now When I start up Axis, the jogging speed sliders are at ridiculously high values and, if I forget to change them then the axes give up half way through a move losing my position. G0 works fine on all axes so I assume there is some other parameter that I am overlooking.. -- Best wishes, Ian Ian W. Wright Sheffield UK "The difference between theory and practice is much smaller in theory than in practice..." - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Load cell
Hi, Has anyone considered the possibility of including load cells / strain gauges into the control loop of EMC2? What I am considering is an idea for making something which would require me to 'drill' a number of very small holes in precise positions through synthetic sapphire sheet. I could probably do it be making some form of sprung drill holder and using a rod or tube with diamond grinding paste to cut the hole but there would probably inevitably be some 'slop' in the sprung holder which would lead to inaccuracies in the finished holes (which would be maybe 0.1 - 0.2mm diameter). So, I was wondering if there might be a possibility to incorporate a load cell or strain gauges into the cutting head and provide some kind of feedback to EMC2 to regulate the downfeed on a 'peck drilling cycle' in a way similar to an EDM machine. If this hasn't been done already, I could envisage it being useful in other applications where it may be useful to optimise the cutting forces or provide some form of automated tool overload protection - such as if a drive belt fails? -- Best wishes, Ian Ian W. Wright Sheffield UK "The difference between theory and practice is much smaller in theory than in practice..." - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Topolinux?
Hi, Does anyone know whether it is possible to run EMC2 in Topolinux within Windows XP? I'm not bothered about it running slow or not doing anything 'real' but my only computer with linux running on it is in the workshop and it would be nice to be able to mess about with sims etc. on EMC without having to go out in the cold!! If it has been done, maybe you could point me towards some kind of 'idiot's guide' to setting it up. Thanks... p.s. my brain's not really in gear today as I've just become a grandfather for the second time this morning. -- Best wishes, Ian Ian W. Wright Sheffield UK "The difference between theory and practice is much smaller in theory than in practice..." - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Touch Probe
Hi, If I hook up a touch probe as I hope to in a couple of days or so, does it matter which parport pin I use? Is there a 'preferred'pin? Thanks. Oh, and I'm thinking I ought to make some kind of 'amplifier' to make the thing more accurate (reproducible) - any ideas on where I might find a suitable circuit or would just a single transistor switch do? -- Best wishes, Ian Ian W. Wright Sheffield UK "The difference between theory and practice is much smaller in theory than in practice..." - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] kernel headers
Hi, I'm trying yet again to get my D-link usb wireless thingy working and getting nowhere fast..! I found a howto which says it should work easy - straight out of the box but it won't! However, this howto tells me that maybe I should update the driver to the latest daily cvs. Now, without a working connection tot he web this gets a bit laborious but I've downloaded the necessary tarball and tried to install it. Now it tells me that I need to have the Kernel Headers in place before it will compile and it tells me that I am looking for kernel headers for 2.6.15-magma I can't find these anywhere on the web. I have found the normal 2.6.15 headers but I assume that the magma ones maybe contain stuff relevant to the realtime kernel and I'm bothered that if I use the wrong ones I might screw up EMC - can anyone advise please? If all else fails I'll just reinstall everything and hope that the USB dongle gets picked up during the install - would this be the easiest answer? The wireless thingy is a D-link DWL-G122. Thanks -- Best wishes, Ian Ian W. Wright Sheffield UK "The difference between theory and practice is much smaller in theory than in practice..." - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Keyboard shortcuts - Axis
I'm watching the table. I know the jog is working as if it were the tool but my mind seems to want to think in terms of which way the table moves. Also, the inconsistency between the X&Y axes and the Z axis often confuses me (i.e. the arrow keys work reversed w.r.t. the table but the page down button brings the Z axis down) and I'm apt to run the tool into the work accidentally. The work I am doing is tiny and so are the distances I'm moving (like 6mm or less most of the time) so, if I accidentally send an axis the wrong way on continuous jog thinking I'm going to send the tool away from the work, I can easily wipe out yet another 0.3mm carbide drill before the axis grinds to a halt! :-( I just think I might get on better if the axes buttons were reversed - I could always change them back if not. I've just been drilling 0.4mm holes in a couple of 1mm ball bearings - now there's a fun occupation!!! and no, I'm not aiming to shoot a Russian spy in the leg with an umbrella gun.. Best wishes, Ian Ian W. Wright Sheffield UK "The difference between theory and practice is much smaller in theory than in practice..." -- Best wishes, Ian Ian W. Wright Sheffield UK "The difference between theory and practice is much smaller in theory than in practice..." - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Keyboard shortcuts - Axis
Can someone please give me a heads up on how to change the keyboard shortcut assignments in Axis. At the moment I have to press the 'right' button to jog the axis to the left etc. and I'd like to change 'em around a bit. Thanks.. -- Best wishes, Ian Ian W. Wright Sheffield UK "The difference between theory and practice is much smaller in theory than in practice..." - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
