Re: [Emc-users] Spindle drive
range, but allow you to run up to 1500 watts and 20,000 rpm or more, I looked at those motors once, but was stumped with finding a suitable power supply. Where do you find a 12v 125A power supply? (or whatever it works out to be) -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Spindle drive
On Sun, Nov 15, 2009 at 07:00:28PM +1100, Frank Tkalcevic wrote: range, but allow you to run up to 1500 watts and 20,000 rpm or more, I looked at those motors once, but was stumped with finding a suitable power supply. Where do you find a 12v 125A power supply? (or whatever it works out to be) It's nice to have supply voltage headroom for the H-bridge, and an inductive load would allow the PWM to transform e.g 24v 65A to your needs, given good flywheel diodes. A Cosel P1500E-24 is pricey new: http://www.plccenter.com/buy/COSEL/P1500E24 but maybe something similar can be found on fleabay. The thing's only the size of a shoebox, and the one I had was also good for 240v input. Erik -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] PWM MESA 5i20
Hello, I need this configuration to apply the PWM output for output to m5i20 net spindle-cmd = motion.spindle-speed-out = pwmgen.0.value net yenable = pwmgen.0.enable net spindle-pwm = pwmgen.0.pwm setp pwmgen.0.pwm-freq 50.0 setp pwmgen.0.scale 82 setp pwmgen.0.min-dc 0.05 setp pwmgen.0.max-dc 0.1 setp pwmgen.0.offset 0.048 setp pwmgen.0.dither-pwm true net spindle-cw = motion.spindle-forward net spindle-pwm = parport.0.pin-17-out The frequency of PWM signal is 50Hz Modulation range is 1-2ns PWM output controls the regulator hobby in openloop What is the configuration m5i20 for the same function? thanks Martin -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] 5i20+7i33 connection to Servo Drive has +21mV of drift.
Hello again, first off thank to all the suggestions about the encoders I was asking about. I think I'm just gonna go with the requirement of zero'ing position prior to milling any part. My new question has to do with the servo drive's input. When it should be at 0v, the input to the drive sits at about 21mV, which causes the motor to drift slowly, I though this might just mean the balance pot needs to be adjusted, but turning it all the way in either direction has no effect. it's been a while since I've dealt with anything on this level, but I was wondering to myself could this be an impedance mismatch issue? maybe I should try a pullup or pulldown resistor? I read in the manual something about the 7i33 already having one or the other, I'll be lookin into that again today, I just wanted to see if anyone had any immediate suggestions or had encountered this before. Thanks again!!! -pat -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Spindle drive
Gentle persons: I've admired the brushless DC motors used in radio-controlled aircraft for some time. Their power and torque per size and weight characteristics are mindboggling (and a testament to the evolution of magnetic material in the last ten years) but I worry about their ability to run in our applications without frying themselves. In a model airplane they typically run for 5-10 minutes and have tons of aircooling. Can they run all day in a CNC-mill? If they weren't so expensive I'd buy several and strap them to an instrumented testbed. As Ben Franklin wrote experience is an expensive teacher and I'd rather someone else make the investment :-) Regards, Kent -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Spindle drive
Kestreltom wrote:- A guy, Matt Shumaker has an interesting web site documenting his electric bike project here: http://www.recumbents.com/WISIL/shumaker/default.htm He has a cnc Sherline style micro mill with a brushless outrunner motor on the spindle: http://www.recumbents.com/WISIL/shumaker/CNC1.jpg I highly recommend reading his informative posts and maybe even shoot him an email about how he is controlling the spindle. Thanks Tom, excellent info. I have emailed him and am awaiting his reply. The motors and controllers certainly look affordable on Ebay although I'm not too sure about the drive shafts which mostly look puny - still, I might just go and hunt around the garage to see if I have an old welder to make a power supply and then order a motor to play with... Ian -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Mister for small mill
Greetings all; I find that I can get brass tubing in pretty small sizes, like 1/16 OD, usually sized to be a slip fit in the next larger size, so this makes it easy to solder up a small nozzle, with the far end built up to 1/4 for attaching the air supply. Now, I'm wondering if there is a standard formula that would tell me the exact geometry it would take to make a 2 tube, one blowing across the end of the other with air, and the second pulling from a nearby quart of cutting oil, in the same manner as the old hand pumped Hudson sprayers, to add a slight mist of cutting oil to the air blowing on the mill? Angles, center separations etc? I think I can just solder the tubing(s) to another small piece of sheet brass to maintain the alignment. -- 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 NRA is offering FREE Associate memberships to anyone who wants them. https://www.nrahq.org/nrabonus/accept-membership.asp Don't remember what you can infer. -- Harry Tennant -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Spindle drive
Kirk, Where did you find that high speed Sole washer motor? I did an internet search and not much showed up. Dave Kirk Wallace wrote: On Sat, 2009-11-14 at 09:38 -0800, Kirk Wallace wrote: On Sat, 2009-11-14 at 16:37 +, Ian W. Wright wrote: Hi, I'm wanting to change the spindle motor on my little mill to one which I can speed control and which has a bit ... snip maybe suggest a suitable circuit? Thanks Ian Off the top of my head, If I had a little mill with a small budget, I would consider shopping for a KBIC controller, http://www.wallacecompany.com/machine_shop/kbic/ http://cgi.ebay.com/KB-ELECTRONICS-KBIC-120-DC-MOTOR-CONTROL-REMANNED_W0QQitemZ250527988998QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item3a54a1bd06 (Short URL) http://preview.alturl.com/sfrw scrounge a free 110 VAC universal motor and use a PWM signal from EMC2 ... snip Another thing that comes to mind, these universal motors tend to be very noisy. I have one of these three phase washer motors: http://www.wallacecompany.com/machine_shop/wash_motor/ which spins up to 16 kRPM, is quiet, and works well with my VFD's (but I'm lusting for a Danfoss). It's cheap, but out of the dirt cheap range though. I wish I could find the time to mount it to a small mill spindle. I need a mill to do PCB milling, someday. -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Mister for small mill
Here is how I did it. I took a short piece of brass bar and drilled most of the way through with a drill slightly bigger than the smallest tube I could easily obtain. This creates the air jet. I then drilled the rest of the way with a drill the same size as the tube. Next I drilled diagonally in from the back to allow air to pass around the oil pipe to the air jet. The small tube is pushed right through and soldered in place. It projects about 1mm past the end of the jet. The whole lot is then pressed into the plastic nozzle on one of those cheap loc-line hoses. A small plastic pipe runs from the small tube in the jet, down the loc-line and out of a made-up block at the bottom. It sounds more complicated than it is. I found the trick is to make sure the pipe down the middle projects past the end of the air nozzle. This way you get a stream of fine droplets in a cylinder of fast moving air. If the oil pipe is flush with the air outlet you get a fine mist that hangs in the air rather than going on the work. Note that I use a pressurized oil feed as this setup doesn't generate much vacuum. The pressurized oil is supplied with one of those cheap combined air regulator/filter and oiler units on eBay like item #250528218868. I took out the air filter bits and added a pipe fitting on the bottom of the water trap. The water trap now becomes the oil reservoir. The reservoir is only small but it lasts quite a long time as you only need a trace of oil. It pays to use oil designed for misters as it is less toxic than the usual cutting oils. The stuff I use is vegetable oil based and a gallon was damn expensive. However it will last many years. Les I used the smallest tube I could find. Gene Heskett wrote: Greetings all; I find that I can get brass tubing in pretty small sizes, like 1/16 OD, usually sized to be a slip fit in the next larger size, so this makes it easy to solder up a small nozzle, with the far end built up to 1/4 for attaching the air supply. Now, I'm wondering if there is a standard formula that would tell me the exact geometry it would take to make a 2 tube, one blowing across the end of the other with air, and the second pulling from a nearby quart of cutting oil, in the same manner as the old hand pumped Hudson sprayers, to add a slight mist of cutting oil to the air blowing on the mill? Angles, center separations etc? I think I can just solder the tubing(s) to another small piece of sheet brass to maintain the alignment. -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Spindle drive
Ian W. Wright watchma...@... writes: Thanks Tom, excellent info. I have emailed him and am awaiting his reply. The motors and controllers certainly look affordable on Ebay although I'm not too sure about the drive shafts which mostly look puny - still, I might just go and hunt around the garage to see if I have an old welder to make a power supply and then order a motor to play with... Ian -- You bet Ian. btw I ordered a motor and esc to experiment with as part of my desire to make a better waste veggie oil transfer pump for my diesel truck. I will be running it at lower rpms (2500 - 3500) than you would, but it might lead me to do a spindle retrofit to my little LightMachines cnc mill. In that case I will post relevant info here. Kent's post is spot-on regarding getting rid of heat (both motor and esc) when you run these little things. It is not so much that they make more heat than a comparable motor on a rated power basis (actually they make less heat per motive force generated) but what is amazing is the amount of heat coming from such a small package! For an inrunner, I would use a heat sink and a fan. Also, if you order a cheap chinese esc, you might want to beef up the capacitor bank which is usually puny when you look at the amount of current being switched (usually at 16K Hz)and the resulting ripple. Tom -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Mister for small mill
If it's organic, it's bound to be Castor oil, an excellent lubricant. Because it gums up over time, you could just let it go to drain. http://www3.towerhobbies.com/cgi-bin/WTI0001P?I=LXS627P=8 Roland 2009/11/15 Leslie Newell les.new...@fastmail.co.uk Here is how I did it. I took a short piece of brass bar and drilled most of the way through with a drill slightly bigger than the smallest tube I could easily obtain. This creates the air jet. I then drilled the rest of the way with a drill the same size as the tube. Next I drilled diagonally in from the back to allow air to pass around the oil pipe to the air jet. The small tube is pushed right through and soldered in place. It projects about 1mm past the end of the jet. The whole lot is then pressed into the plastic nozzle on one of those cheap loc-line hoses. A small plastic pipe runs from the small tube in the jet, down the loc-line and out of a made-up block at the bottom. It sounds more complicated than it is. I found the trick is to make sure the pipe down the middle projects past the end of the air nozzle. This way you get a stream of fine droplets in a cylinder of fast moving air. If the oil pipe is flush with the air outlet you get a fine mist that hangs in the air rather than going on the work. Note that I use a pressurized oil feed as this setup doesn't generate much vacuum. The pressurized oil is supplied with one of those cheap combined air regulator/filter and oiler units on eBay like item #250528218868. I took out the air filter bits and added a pipe fitting on the bottom of the water trap. The water trap now becomes the oil reservoir. The reservoir is only small but it lasts quite a long time as you only need a trace of oil. It pays to use oil designed for misters as it is less toxic than the usual cutting oils. The stuff I use is vegetable oil based and a gallon was damn expensive. However it will last many years. Les I used the smallest tube I could find. Gene Heskett wrote: Greetings all; I find that I can get brass tubing in pretty small sizes, like 1/16 OD, usually sized to be a slip fit in the next larger size, so this makes it easy to solder up a small nozzle, with the far end built up to 1/4 for attaching the air supply. Now, I'm wondering if there is a standard formula that would tell me the exact geometry it would take to make a 2 tube, one blowing across the end of the other with air, and the second pulling from a nearby quart of cutting oil, in the same manner as the old hand pumped Hudson sprayers, to add a slight mist of cutting oil to the air blowing on the mill? Angles, center separations etc? I think I can just solder the tubing(s) to another small piece of sheet brass to maintain the alignment. -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Mister for small mill
On Sunday 15 November 2009, Leslie Newell wrote: Here is how I did it. I took a short piece of brass bar and drilled most of the way through with a drill slightly bigger than the smallest tube I could easily obtain. This creates the air jet. I then drilled the rest of the way with a drill the same size as the tube. Next I drilled diagonally in from the back to allow air to pass around the oil pipe to the air jet. The small tube is pushed right through and soldered in place. It projects about 1mm past the end of the jet. The whole lot is then pressed into the plastic nozzle on one of those cheap loc-line hoses. A small plastic pipe runs from the small tube in the jet, down the loc-line and out of a made-up block at the bottom. It sounds more complicated than it is. I must confess I had to think about this to get the right mental picture, but now its clear, almost exactly the same as an air brush gun, where the liquid comes out of the center. So that center tube feeding in the oil is surrounded by by the air exiting through the gap between the OD of that tube and the drilled holes walls. Neat, and looks to be fairly rugged too. I'll see what I can come up with. The nearest tubing is probably the Hobby Stop 25 miles up the interstate in Bridgeport, he carries that whole line of graduated size tubing in brass, alu and even plastic for the model makers. Neat idea, thanks. I found the trick is to make sure the pipe down the middle projects past the end of the air nozzle. This way you get a stream of fine droplets in a cylinder of fast moving air. If the oil pipe is flush with the air outlet you get a fine mist that hangs in the air rather than going on the work. Good to know that the atomization can be overdone. Note that I use a pressurized oil feed as this setup doesn't generate much vacuum. The pressurized oil is supplied with one of those cheap combined air regulator/filter and oiler units on eBay like item #250528218868. I took out the air filter bits and added a pipe fitting on the bottom of the water trap. The water trap now becomes the oil reservoir. The reservoir is only small but it lasts quite a long time as you only need a trace of oil. That I can source at Lowes, and probably for no more that that one by the time you pay ebays usually outrageous SH. I also have a pair of those in the tank electric fuel pumps, which also might serve as the flow regulator and pump, triggering it with a spare relay on the spindle controller, spindle running, get oil in the air. It pays to use oil designed for misters as it is less toxic than the usual cutting oils. The stuff I use is vegetable oil based and a gallon was damn expensive. However it will last many years. I'll also check that when I am out of the quart of cutting oil I am using now. Thanks Les, appreciate the help. -- 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 NRA is offering FREE Associate memberships to anyone who wants them. https://www.nrahq.org/nrabonus/accept-membership.asp In defeat, unbeatable; in victory, unbearable. -- W. Churchill, on General Montgomery -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Mister for small mill
Castor oil is a good guess but not the only one. It's fatty acids are a couple of carbons longer than the average cooking oil and does seem to survive well as a lube in model airplane engines. On the industrial market it is about 30% more expensive than canola. If I wanted to go cheap I'd simply go with canola right off the shelf. Indeed inexpensive enough to not recover. Tea (seed) oil might be another interesting choice. About 88% C18:1 (mono-unsaturated) it has a high smoke point (485 F). Common cooking oil for southern China and available in this country as specialty cooking oil. If you wanted something different blend fat from hamburgers with canola and enjoy the smell of frying beef food while machining. ;-) Probably more than you really wanted to know. Dave On Sun, 2009-11-15 at 20:57 +0200, Roland Jollivet wrote: If it's organic, it's bound to be Castor oil, an excellent lubricant. Because it gums up over time, you could just let it go to drain. http://www3.towerhobbies.com/cgi-bin/WTI0001P?I=LXS627P=8 Roland 2009/11/15 Leslie Newell les.new...@fastmail.co.uk Here is how I did it. I took a short piece of brass bar and drilled most of the way through with a drill slightly bigger than the smallest tube I could easily obtain. This creates the air jet. I then drilled the rest of the way with a drill the same size as the tube. Next I drilled diagonally in from the back to allow air to pass around the oil pipe to the air jet. The small tube is pushed right through and soldered in place. It projects about 1mm past the end of the jet. The whole lot is then pressed into the plastic nozzle on one of those cheap loc-line hoses. A small plastic pipe runs from the small tube in the jet, down the loc-line and out of a made-up block at the bottom. It sounds more complicated than it is. I found the trick is to make sure the pipe down the middle projects past the end of the air nozzle. This way you get a stream of fine droplets in a cylinder of fast moving air. If the oil pipe is flush with the air outlet you get a fine mist that hangs in the air rather than going on the work. Note that I use a pressurized oil feed as this setup doesn't generate much vacuum. The pressurized oil is supplied with one of those cheap combined air regulator/filter and oiler units on eBay like item #250528218868. I took out the air filter bits and added a pipe fitting on the bottom of the water trap. The water trap now becomes the oil reservoir. The reservoir is only small but it lasts quite a long time as you only need a trace of oil. It pays to use oil designed for misters as it is less toxic than the usual cutting oils. The stuff I use is vegetable oil based and a gallon was damn expensive. However it will last many years. Les I used the smallest tube I could find. Gene Heskett wrote: Greetings all; I find that I can get brass tubing in pretty small sizes, like 1/16 OD, usually sized to be a slip fit in the next larger size, so this makes it easy to solder up a small nozzle, with the far end built up to 1/4 for attaching the air supply. Now, I'm wondering if there is a standard formula that would tell me the exact geometry it would take to make a 2 tube, one blowing across the end of the other with air, and the second pulling from a nearby quart of cutting oil, in the same manner as the old hand pumped Hudson sprayers, to add a slight mist of cutting oil to the air blowing on the mill? Angles, center separations etc? I think I can just solder the tubing(s) to another small piece of sheet brass to maintain the alignment. -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment -
Re: [Emc-users] Spindle drive
On Sun, 2009-11-15 at 12:08 -0500, Dave wrote: Kirk, Where did you find that high speed Sole washer motor? I did an internet search and not much showed up. Dave I got mine from eBay by searching washer motor, then carefully looking through the ads. In the US, it seems that most motors are are multi-speed single phase induction motors or brushed AC (universal), so you need to make sure the dataplate shows three phase. Here is a sample: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=220481317692 The dataplate isn't legible, but you could send the seller a question on what it says: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=270485157078 I Googled the model number 205850 motor and found this: http://minneapolis.craigslist.org/dak/app/1448554050.html Happy hunting. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/index.html California, USA -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Mister for small mill
On Nov 15, 2009, at 12:45 PM, dave wrote: Castor oil is a good guess but not the only one. It's fatty acids are a couple of carbons longer than the average cooking oil and does seem to survive well as a lube in model airplane engines. On the industrial market it is about 30% more expensive than canola. If I wanted to go cheap I'd simply go with canola right off the shelf. Indeed inexpensive enough to not recover. If you want to get even more value out of your oil - you could burn it when it is done. I have casted hundreds of pounds of iron and aluminum from my oil burner. Or you could heat your shop with it. Here I am melting iron with vegetable oil: http://openosx.com/hotspring/foundry/melt-iron/melt-iron.html Cheers, Jeshua Lacock Founder/Programmer 3DTOPO Incorporated http://3DTOPO.com Phone: 208.462.4171 -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Parallel ports on laptops
2009/11/15 Bryan Mumford n...@bmumford.com: . Can I successfully use a p-port on a laptop like a new Dell Latitude E5400 that has an E Legacy Extender to add a parallel port? I don't know for sure, but the P-Port in the docking station of my Latitude (D630) is a proper pin-addressable port. -- atp -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Parallel ports on laptops
Be aware that some laptops cannot be used due to power management so do the latency test before you buy anything Dave Caroline -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Parallel ports on laptops
Be aware that some laptops cannot be used due to power management so do the latency test before you buy anything Can't do a latency test on a mail order Dell. How likely am I to have this problem, and is there no work-around? How do you do the latency test? -- Bryan Mumford -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Mister for small mill
Hi Gene, almost exactly the same as an air brush gun, where the liquid comes out of the center. So that center tube feeding in the oil is surrounded by by the air exiting through the gap between the OD of that tube and the drilled holes walls. Yup. The tricky bit is finding the right drill diameter. You only need a very small gap otherwise you end up using LOTS of air. With a small gap you can use a higher pressure and most of the flow is then air dragged in by the high velocity air stream. A better way may be to drill the other way round. A big hole followed by a smaller hole that is the jet size. The oil tube is then fitted through a star shaped insert that fits in the larger hole. The air travels through the gaps in the star. Slightly more complicated but it reduces the restriction on airflow so again you can decrease the jet gap and increase efficiency. Mine uses a fair amount of air and the compressor kicking in on a fairly regular basis can get annoying. Oh yes, I forgot to mention you really need a needle valve and one-way valve in the oil line. If you don't have a one-way valve the oil drains back and takes a while to start flowing next time you turn on the air. I used 4mm nylon pipe from the oil reservoir to the mister. You can buy 4mm push fit needle valves and one way valves designed for pneumatics. Neat, and looks to be fairly rugged too. The thin inner tube is a little vulnerable but so far it has survived on my lathe where it often gets wrapped up in swarf. Good to know that the atomization can be overdone. Yes you want to keep atomization to a minimum. pump, triggering it with a spare relay on the spindle controller, spindle running, get oil in the air. I use a solenoid valve on the air supply, driven from the mist coolant output. Les -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Parallel ports on laptops
On Sunday 15 November 2009 23:59:26 Bryan Mumford wrote: Be aware that some laptops cannot be used due to power management so do the latency test before you buy anything Can't do a latency test on a mail order Dell. How likely am I to have this problem, and is there no work-around? I'd say it's very likely on modern laptops. In fact, I don't think _any_ modern laptop is usable for realtime due to excessive powersaving features implemented by the firmware. How do you do the latency test? EMC ships a latency-test script. -- Greetings, Michael. -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Mister for small mill
On Sunday 15 November 2009, Leslie Newell wrote: Hi Gene, almost exactly the same as an air brush gun, where the liquid comes out of the center. So that center tube feeding in the oil is surrounded by by the air exiting through the gap between the OD of that tube and the drilled holes walls. Yup. The tricky bit is finding the right drill diameter. You only need a very small gap otherwise you end up using LOTS of air. With a small gap you can use a higher pressure and most of the flow is then air dragged in by the high velocity air stream. A better way may be to drill the other way round. A big hole followed by a smaller hole that is the jet size. The oil tube is then fitted through a star shaped insert that fits in the larger hole. The air travels through the gaps in the star. Slightly more complicated but it reduces the restriction on airflow so again you can decrease the jet gap and increase efficiency. Mine uses a fair amount of air and the compressor kicking in on a fairly regular basis can get annoying. Oh yes, I forgot to mention you really need a needle valve and one-way valve in the oil line. If you don't have a one-way valve the oil drains back and takes a while to start flowing next time you turn on the air. I used 4mm nylon pipe from the oil reservoir to the mister. You can buy 4mm push fit needle valves and one way valves designed for pneumatics. That latter I haven't found yet. Starting with some tube that was .093 OD, I drilled the next size bigger drill bit about 2/3rds through a small block of brass. This looks usable although I'd druther see a smaller air gap. I haven't drilled the side hole for the air inlet yet, need to go see what size of tubing I can find, in between getting an oil leak looked at on the wifes car. I suddenly need two of me, life keeps getting in the way... Neat, and looks to be fairly rugged too. The thin inner tube is a little vulnerable but so far it has survived on my lathe where it often gets wrapped up in swarf. I figure on milling this down to pretty small, so it can be aimed just by bending the air supply tubing. Good to know that the atomization can be overdone. Yes you want to keep atomization to a minimum. pump, triggering it with a spare relay on the spindle controller, spindle running, get oil in the air. I use a solenoid valve on the air supply, driven from the mist coolant output. I haven't stumbled over one of those yet... Thanks Les -- 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 NRA is offering FREE Associate memberships to anyone who wants them. https://www.nrahq.org/nrabonus/accept-membership.asp Oh don't the days seem lank and long When all goes right and none goes wrong, And isn't your life extremely flat With nothing whatever to grumble at! -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Parallel ports on laptops
On Sun, Nov 15, 2009 at 02:59:26PM -0800, Bryan Mumford wrote: Can't do a latency test on a mail order Dell. How likely am I to have this problem, and is there no work-around? Very likely. There is no work-around because it's a hardware/BIOS issue, not software. Buying a new laptop mail-order for use with EMC is a very bad idea in my opinion. If you can, take a live CD to a local used-computers-and-stuff shop and boot their dirt-cheap P3 systems until you find one that gives good latency results. Then run EMC/AXIS and see if the machine has working OpenGL. If you are near an AP (you will be, if they sell laptops with wireless), see if that works. Bonus: parallel ports galore. If you find one, fill it with as much RAM as it will handle and it'll be plenty fast enough for EMC. My local shop had no problem with me testing machines for Linux compatibility this way. You will almost certainly not find a realtime-capable laptop by chance. You must test them. -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Spindle drive
That will work Thanks Kirk! Dave Kirk Wallace wrote: On Sun, 2009-11-15 at 12:08 -0500, Dave wrote: Kirk, Where did you find that high speed Sole washer motor? I did an internet search and not much showed up. Dave I got mine from eBay by searching washer motor, then carefully looking through the ads. In the US, it seems that most motors are are multi-speed single phase induction motors or brushed AC (universal), so you need to make sure the dataplate shows three phase. Here is a sample: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=220481317692 The dataplate isn't legible, but you could send the seller a question on what it says: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=270485157078 I Googled the model number 205850 motor and found this: http://minneapolis.craigslist.org/dak/app/1448554050.html Happy hunting. -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Parallel ports on laptops
I'm very sorry to hear this, but glad I did before I spent money for a machine that was not going to work. Thanks for the bad news. At 7:34 PM -0600 11-15-09, Chris Radek wrote: On Sun, Nov 15, 2009 at 02:59:26PM -0800, Bryan Mumford wrote: Can't do a latency test on a mail order Dell. How likely am I to have this problem, and is there no work-around? Very likely. There is no work-around because it's a hardware/BIOS issue, not software. Buying a new laptop mail-order for use with EMC is a very bad idea in my opinion. If you can, take a live CD to a local used-computers-and-stuff shop and boot their dirt-cheap P3 systems until you find one that gives good latency results. Then run EMC/AXIS and see if the machine has working OpenGL. If you are near an AP (you will be, if they sell laptops with wireless), see if that works. Bonus: parallel ports galore. If you find one, fill it with as much RAM as it will handle and it'll be plenty fast enough for EMC. My local shop had no problem with me testing machines for Linux compatibility this way. You will almost certainly not find a realtime-capable laptop by chance. You must test them. -- Bryan Mumford -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Cloud computing CADCAM
Hello I think there are so many CAD CAM on market that it is not easy to choose one. Start with CATIA $ 21 000, MasterCam $ 15 000 to CAD CAM that cost few hundreds. I think that future for CAD CAM is in Cloud Computing. Goggle and Microsoft try to bring it up. Pay for time you used CAD CAM, and next time you can use another CAD CAM and new upgrades is not user problem any more. It is very interesting, pre pay for use ( 30 days etc) log in and use it. I think that individual, company can buy few CAD CAM and start offer Cloud Computing to mass users. I think there is market for it. Competition will bring price down for sure. I personally will use it that service. Thanks Aram -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Parallel ports on laptops
2009/11/16 Bryan Mumford n...@bmumford.com: I'm very sorry to hear this, but glad I did before I spent money for a machine that was not going to work. I can try booting my D630 from the LiveCD this evening and testing it if you think it will be any help? -- atp -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
