Re: [Emc-users] [OT] CadSoft releases Eagle V6 to beta testing
On Mon, Nov 7, 2011 at 2:50 PM, Belli Button be...@iafrica.com wrote: Funny thing though, if there is a package available that could show my Gerber plot on the PC, I would like to see it. Hi Belli, You may try gerbv (for ubuntu). gerbv - Gerber file viewer for PCB design Yishin -- ARAIS ROBOT TECHNOLOGY www.araisrobo.com -- RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Engaver Tool Changing
You might try posting your query over in the CNCZone too. Once you've settled on an approach I hope you'll provide pictures for the rest of us to ooh and aah over :-) I'll most likely try to get something quick and dirty done, then go from there. At first it won't be anything to write home about, but I'll share what I've done in case it might help. This is a good read. Movie at the end too... http://www.cncathome.com/spindles.html -- RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] PC board making and viewing
Hi I see some discussion on PC board making. My experience: 1. Look for Gerber view programs (gerbv) 2. You need a high speed spindle - I use a Kavo spindle (about 30 mm dia and 100 mm long - runs 6 rpm) - look for KAVO spindles. Gives excellent results using PCB-GCODE software and EAGLE layouts. Rudy -- RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Engaver Tool Changing
On 7 November 2011 02:26, Kirk Wallace kwall...@wallacecompany.com wrote: I suppose a draw bar is going to be a problem. How does your current drawbar work? I can imagine thet it might be possible to use the exisiting drawbar actuator for the new spindle. Part of the solution might be to hold the high-speed spindle in place with the 4 tapped holes in the face rather than with the drawbar. There are laminations available with a decent-sized central hole that would allow a through-bore motor to be made. http://www.gobrushless.com/shop/index.php?app=ccp0ns=prodshowref=SC+65mmstator I think an ISO10 holder could be made to fit at least partly up inside that, and you could probably still get at the face mounting bolts. However I have not found a drawing which shows them. An Inrunner might package more easily. Rather than a brushless motor, I wonder if gearing up the existing spindle is an option. I have seen a centrifugal supercharger drive which used friction drive to achieve a large speed increase using only a slightly resilient outer drive ring, and slightly-floating-mounted planets. These are almost ready-made for the planet job: http://simplybearings.co.uk/shop/advanced_search_result.php?categories_id=44611_10=9205_121_210=-122_220=9205_2223_230=9205_23x=22y=9extra_field_filter=1 -- atp The idea that there is no such thing as objective truth is, quite simply, wrong. -- RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Dust-proof case?
On 6 November 2011 17:36, Jon Elson el...@pico-systems.com wrote: http://www.newark.com/tyco-electronics-corcom/10vr6/rfi-power-line-filter-10a-700ua/dp/52K3303 Yes, in the US, corcom is a leading brand of these filters. My machine has one of these: http://www.ebay.co.uk/itm/12330-NEW-Rasmi-3G3MV-PFI-1010-E-RFI-Filter-/170624064389?pt=LH_DefaultDomain_0hash=item27b9fc9b85#ht_967wt_966 (I think that Rasmi might have a bigger market share in Europe than Corcom) -- atp The idea that there is no such thing as objective truth is, quite simply, wrong. -- RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Engaver Tool Changing
On Mon, 2011-11-07 at 19:59 +1100, Frank Tkalcevic wrote: ... snip This is a good read. Movie at the end too... http://www.cncathome.com/spindles.html ... snip As Paul says in the video, that's pretty cool. The page saves me from finding out the hard way that something is unlikely to work. Thanks for the link Frank. I am tending towards having the same arrangement with the motor offset and driving the spindle with a belt. Then having the draw bar release cylinder offset opposite from the motor and pushing on the bar through a lever. The NMTB 40 taper will be above the spindle on piers. I think I'll stick with the ISO 20 tool holders. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/index.html California, USA -- RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Engaver Tool Changing
ISO 20 toolholders are nice, but you may wish to investigate the cost of them before making a commitment. They seem to be less readily available at cheap surplus prices. Steve Stallings -Original Message- From: Kirk Wallace [mailto:kwall...@wallacecompany.com] Sent: Monday, November 07, 2011 12:07 PM To: Enhanced Machine Controller (EMC) Subject: Re: [Emc-users] Engaver Tool Changing On Mon, 2011-11-07 at 19:59 +1100, Frank Tkalcevic wrote: ... snip This is a good read. Movie at the end too... http://www.cncathome.com/spindles.html ... snip As Paul says in the video, that's pretty cool. The page saves me from finding out the hard way that something is unlikely to work. Thanks for the link Frank. I am tending towards having the same arrangement with the motor offset and driving the spindle with a belt. Then having the draw bar release cylinder offset opposite from the motor and pushing on the bar through a lever. The NMTB 40 taper will be above the spindle on piers. I think I'll stick with the ISO 20 tool holders. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/index.html California, USA -- RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Engaver Tool Changing - an OT question
On 11/7/2011 3:59 AM, Frank Tkalcevic wrote: You might try posting your query over in the CNCZone too. Once you've settled on an approach I hope you'll provide pictures for the rest of us to ooh and aah over :-) I'll most likely try to get something quick and dirty done, then go from there. At first it won't be anything to write home about, but I'll share what I've done in case it might help. This is a good read. Movie at the end too... http://www.cncathome.com/spindles.html Looking at this website (which I agree is a good read; thanks, Frank) reminds me of a niggling question I've had for some time. What's up with all these die grinders in the marketplace? There can't be that many mold and die makers in the world and I doubt a professional would use any of these consumer-grade tools anyway. Is this just a marketing ploy or do they truly have superior performance? The website in question dismisses the electric ones as basically routers with better bearings. Agree? Regards, Kent -- RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Engaver Tool Changing
On Mon, 2011-11-07 at 12:33 +, andy pugh wrote: On 7 November 2011 02:26, Kirk Wallace kwall...@wallacecompany.com wrote: I suppose a draw bar is going to be a problem. How does your current drawbar work? I can imagine thet it might be possible to use the exisiting drawbar actuator for the new spindle. Part of the solution might be to hold the high-speed spindle in place with the 4 tapped holes in the face rather than with the drawbar. I have an electric draw bar like this one: http://home.insightbb.com/~joevicar3/cheap_drawbar.htm It's not very subtle and would make short work of a 20 taper collet. There are laminations available with a decent-sized central hole that would allow a through-bore motor to be made. http://www.gobrushless.com/shop/index.php?app=ccp0ns=prodshowref=SC+65mmstator I think an ISO10 holder could be made to fit at least partly up inside that, and you could probably still get at the face mounting bolts. However I have not found a drawing which shows them. http://www.schaublin.ch/catalogues/PO039-042.pdf Usually outrunners are wound to get low RPM. I would most likely need as much speed as possible. Many of the laminations I have seen have odd numbers of poles so would not work. I do see the above stator has a number of poles that evenly divides by three, so would work if I wind six poles in a row. So let's see, 60 RPS = 3600 RPM. Common VFD's go up to 400 Hz to give around 24,000 RPM. That would do nicely. This would be a slam dunk if I didn't want the draw bar and went with ER collets, hmmm. An Inrunner might package more easily. Rather than a brushless motor, I wonder if gearing up the existing spindle is an option. I have seen a centrifugal supercharger drive which used friction drive to achieve a large speed increase using only a slightly resilient outer drive ring, and slightly-floating-mounted planets. These are almost ready-made for the planet job: http://simplybearings.co.uk/shop/advanced_search_result.php?categories_id=44611_10=9205_121_210=-122_220=9205_2223_230=9205_23x=22y=9extra_field_filter=1 I found this: http://www.tormach.com/product_pcnc_acc_speeder.html I suppose a smooth belt from the main spindle to an offset idler axle then a belt back to an on-axis secondary spindle would work, but then there would be no fancy high-tech electronics involved. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/index.html California, USA -- RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] integrating a spindle fault signal in a modular way?
On 11/06/2011 10:36 PM, Scott Hasse wrote: I am working on the finishing touches of an Anilam 1100 knee mill conversion to EMC2, with details here: http://code.google.com/p/sector67-sandbox/wiki/ProjectSheetCake Over the last couple of months our spindle VFD (a Compumotor SpindleBlok) has faulted 5 or 6 times I have a Magnetek VFD and it has a relay that signals fault. I wired it in series with my E-top switches, servo amp fault relays, etc. It works fine to stop the machine when the drive shuts down. (When I started doing rigid tapping that requires the spindle to reverse several times a minute it started tripping a LOT, I finally found out that the electronic overheat error meant it thought the motor was overheatin g due to all the reversals. I turned that feature off as the Bridgeport motor is made to take plug reversing all day long. If you have a normally-closed E-stop switch, just put the NC contacts on the VFD in series with it. Jon -- RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] integrating a spindle fault signal in a modular way?
On 11/06/2011 11:47 PM, Kirk Wallace wrote: I read a little more from your website. I see your chicken and egg problem, even with the independent loop I would think the VFD's fault relay would be open until the VFD powers up, but you can't power up until the loop is closed. Obviously, I don't have my VFD's set up for e-stop, but I been meaning to :) I can't say for any other make/model, byt the Magnetek will only trip the fault relay for an ACTUAL fault. So, it will not signal fault unless it has a motor run command and you power it off. It will not signal fault on power up or power down UNLESS it is running the motor at the time. Jon -- RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Engaver Tool Changing
On 7 November 2011 17:58, Kirk Wallace kwall...@wallacecompany.com wrote: I have an electric draw bar like this one: http://home.insightbb.com/~joevicar3/cheap_drawbar.htm It's not very subtle and would make short work of a 20 taper collet. Possibly not, if it was simply operating a bolt into the CAT40 adaptor, pushing-off a Belville stack. face mounting bolts. However I have not found a drawing which shows them. http://www.schaublin.ch/catalogues/PO039-042.pdf That does seem to be a good example of one of the many documents not showing the bolt holes, yes :-) According to my Machineries handbook, NMTB40 has two dogs in the face, and also 4 x 1/2 x 13 tapped holes. Mounting to those would allow you to poke alternative drawbar arrangements down the hole (and would preclude using the power-drawbar for fast loading and unloading the high speed spindle. So let's see, 60 RPS = 3600 RPM. Common VFD's go up to 400 Hz to give around 24,000 RPM. That would do nicely. This would be a slam dunk if I didn't want the draw bar and went with ER collets, Can you use a VFD with a BLDC? I am pretty sure that Pete has run his BLDC drives in a 5k servo thread, which might get you 400Hz of commutation. I found this: http://www.tormach.com/product_pcnc_acc_speeder.html I suppose a smooth belt from the main spindle to an offset idler axle then a belt back to an on-axis secondary spindle would work, but then there would be no fancy high-tech electronics involved. I was imagining something similar, but cleverer. :-) -- atp The idea that there is no such thing as objective truth is, quite simply, wrong. -- RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] joystick control
I just downloaded the 10.04 live cd because I'm getting rea dy to setup a new computer for my cnc machine and I was wondering if the component for using a joystick was already included in that release? I was thinking that having a joystick control would be really handy because of the location of my computer relative to the cnc machine, but at the moment I'm using the older release of EMC2. Will that work with a USB controller? Chris -- RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] joystick control
On 7 November 2011 18:35, Chris Reynolds c_reynolds2...@yahoo.com wrote: I just downloaded the 10.04 live cd because I'm getting rea dy to setup a new computer for my cnc machine and I was wondering if the component for using a joystick was already included in that release? hal_input was introduced in early 2007, and appears to be in 2.3.5. I don't know which version it was introduced into. -- atp The idea that there is no such thing as objective truth is, quite simply, wrong. -- RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Engaver Tool Changing
On Mon, 2011-11-07 at 18:33 +, andy pugh wrote: ... snip I was imagining something similar, but cleverer. :-) ... snip I just had a vision of using two stators, one with its matching rotor connected to the main spindle and poles wired UVWUVWUVWUVWUVWUVW. The other wired UUVVWW and drives the rotor on the secondary spindle giving an six to one generator Hz to motor RPM ratio. The draw bar cylinder would be mounted between the upper generator and lower motor. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/index.html California, USA -- RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Engaver Tool Changing - an OT question
I've been using one for years in my hobby router. I've just replaced it with a Chinese spindle, but haven't cut anything yet. I have a Bosch GGS 27LC, won on ebay. With its straight long neck it is easy to mount. It has variable speed from 12k to 24k. Run-out is awesome. Never broken a PCB drill while using it. I've done wood and aluminium with it too. 3mm, 1/8, 6mm, 1/4, 8mm collets, which are a bit pricey though. It's very noisy. It's going to be demoted to the occasional die grinding, and I'll make a mount for my lathe too. I don't have air in my room, so electric is perfect. -Original Message- From: Kent A. Reed [mailto:knbr...@erols.com] Sent: Tuesday, 8 November 2011 4:57 AM To: Enhanced Machine Controller (EMC) Subject: Re: [Emc-users] Engaver Tool Changing - an OT question On 11/7/2011 3:59 AM, Frank Tkalcevic wrote: You might try posting your query over in the CNCZone too. Once you've settled on an approach I hope you'll provide pictures for the rest of us to ooh and aah over :-) I'll most likely try to get something quick and dirty done, then go from there. At first it won't be anything to write home about, but I'll share what I've done in case it might help. This is a good read. Movie at the end too... http://www.cncathome.com/spindles.html Looking at this website (which I agree is a good read; thanks, Frank) reminds me of a niggling question I've had for some time. What's up with all these die grinders in the marketplace? There can't be that many mold and die makers in the world and I doubt a professional would use any of these consumer-grade tools anyway. Is this just a marketing ploy or do they truly have superior performance? The website in question dismisses the electric ones as basically routers with better bearings. Agree? Regards, Kent -- RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Engaver Tool Changing
On 7 November 2011 19:16, Kirk Wallace kwall...@wallacecompany.com wrote: I just had a vision of using two stators, one with its matching rotor connected to the main spindle and poles wired UVWUVWUVWUVWUVWUVW. The other wired UUVVWW and drives the rotor on the secondary spindle giving an six to one generator Hz to motor RPM ratio. The draw bar cylinder would be mounted between the upper generator and lower motor. Could you do that with one stator, and two rotors with different magnet arrangements? (Note that the question is could you not should you :-) -- atp The idea that there is no such thing as objective truth is, quite simply, wrong. -- RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Engaver Tool Changing
On Mon, 2011-11-07 at 19:42 +, andy pugh wrote: On 7 November 2011 19:16, Kirk Wallace kwall...@wallacecompany.com wrote: I just had a vision of using two stators, one with its matching rotor connected to the main spindle and poles wired UVWUVWUVWUVWUVWUVW. The other wired UUVVWW and drives the rotor on the secondary spindle giving an six to one generator Hz to motor RPM ratio. The draw bar cylinder would be mounted between the upper generator and lower motor. Could you do that with one stator, and two rotors with different magnet arrangements? (Note that the question is could you not should you :-) No, I think the rotor and stator pole spacings need to match. The generator pole spacing is much tighter. The wire sizes and turns count might be different too. I was half joking with this idea, but it might work. Here is a rough drawing: http://www.wallacecompany.com/machine_shop/Shizuoka/Shiz_Speeder-1a.png -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/index.html California, USA -- RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Engaver Tool Changing
On Mon, 2011-11-07 at 12:15 -0500, Steve Stallings wrote: ISO 20 toolholders are nice, but you may wish to investigate the cost of them before making a commitment. They seem to be less readily available at cheap surplus prices. Steve Stallings I'll probably try to make my own holders, like Paul did. Oops, now I need to make a grinder. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/index.html California, USA -- RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] joystick control
Look on the wiki site for Simple Remote Pendant John On 11/7/2011 12:35 PM, Chris Reynolds wrote: I just downloaded the 10.04 live cd because I'm getting rea dy to setup a new computer for my cnc machine and I was wondering if the component for using a joystick was already included in that release? I was thinking that having a joystick control would be really handy because of the location of my computer relative to the cnc machine, but at the moment I'm using the older release of EMC2. Will that work with a USB controller? Chris -- RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Engaver Tool Changing
Has anyone tried to use and RC controller with EMC to run a RC brushless motor They take a pwm control signal from 1ms to 2ms or around there but haven't tried It sound like the have to have a signal on the input when there powered up or the go into disable mode possibly On 7 November 2011 02:26, Kirk Wallace kwall...@wallacecompany.com wrote: I suppose a draw bar is going to be a problem. How does your current drawbar work? I can imagine thet it might be possible to use the exisiting drawbar actuator for the new spindle. Part of the solution might be to hold the high-speed spindle in place with the 4 tapped holes in the face rather than with the drawbar. I have an electric draw bar like this one: http://home.insightbb.com/~joevicar3/cheap_drawbar.htm It's not very subtle and would make short work of a 20 taper collet. There are laminations available with a decent-sized central hole that would allow a through-bore motor to be made. http://www.gobrushless.com/shop/index.php?app=ccp0ns=prodshowref=SC+ 65mmstator I think an ISO10 holder could be made to fit at least partly up inside that, and you could probably still get at the face mounting bolts. However I have not found a drawing which shows them. http://www.schaublin.ch/catalogues/PO039-042.pdf Usually outrunners are wound to get low RPM. I would most likely need as much speed as possible. Many of the laminations I have seen have odd numbers of poles so would not work. I do see the above stator has a number of poles that evenly divides by three, so would work if I wind six poles in a row. So let's see, 60 RPS = 3600 RPM. Common VFD's go up to 400 Hz to give around 24,000 RPM. That would do nicely. This would be a slam dunk if I didn't want the draw bar and went with ER collets, hmmm. An Inrunner might package more easily. Rather than a brushless motor, I wonder if gearing up the existing spindle is an option. I have seen a centrifugal supercharger drive which used friction drive to achieve a large speed increase using only a slightly resilient outer drive ring, and slightly-floating-mounted planets. These are almost ready-made for the planet job: http://simplybearings.co.uk/shop/advanced_search_result.php?categories _id=44611_10=9205_121_210=-122_220=9205_2223_230=9205_23x=22y=9 extra_field_filter=1 I found this: http://www.tormach.com/product_pcnc_acc_speeder.html I suppose a smooth belt from the main spindle to an offset idler axle then a belt back to an on-axis secondary spindle would work, but then there would be no fancy high-tech electronics involved. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/index.html California, USA -- RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Engaver Tool Changing - an OT question
.snip. It's very noisy. The reason I went with the HF die grider was the shear weight of the -- RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Engaver Tool Changing - an OT question
On Mon, Nov 7, 2011 at 9:15 PM, BRIAN GLACKIN glackin.br...@gmail.comwrote: .snip. It's very noisy. The reason I went with the HF die grider was the shear weight of the G - fingers hitting wrong keys My reason was the DG was soo much lighter reducing the gantry mass and the minimum amount of cooling air used by the grinder (minimizes dust dispersion). My die grinder was also soo much quieter than the router. I don't know how that compares with the Bosch DG. Brian -- RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Engaver Tool Changing
On Mon, 2011-11-07 at 20:15 -0600, Kasey Matejcek wrote: Has anyone tried to use and RC controller with EMC to run a RC brushless motor They take a pwm control signal from 1ms to 2ms or around there but haven't tried It sound like the have to have a signal on the input when there powered up or the go into disable mode possibly I posted a little bit of RC servo stuff here: http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?RC_Servo_Test I suppose an RC ESC uses the same type of signal. http://www.youtube.com/watch?v=fPLdHeRQp_w Since an RC brushless motor is just a three phase motor this link might be of interest too: http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?BLDC but in this setup EMC2 fills the ESC role. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/index.html California, USA -- RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Has anyone tried to use and RC controller with EMC to run a RC brushless
Has anyone tried to use and RC controller with EMC to run a RC brushless motor Hi! I try to use it. Work still in progress, but control part is almost done. please read more here http://www.linuxcnc.org/component/option,com_kunena/Itemid,20/func,view/catid,16/id,2056/limit,6/limitstart,12/lang,english/#14554 On 11/08/2011 06:15 AM, Kasey Matejcek wrote: Has anyone tried to use and RC controller with EMC to run a RC brushless motor They take a pwm control signal from 1ms to 2ms or around there but haven't tried It sound like the have to have a signal on the input when there powered up or the go into disable mode possibly On 7 November 2011 02:26, Kirk Wallacekwall...@wallacecompany.com wrote: I suppose a draw bar is going to be a problem. How does your current drawbar work? I can imagine thet it might be possible to use the exisiting drawbar actuator for the new spindle. Part of the solution might be to hold the high-speed spindle in place with the 4 tapped holes in the face rather than with the drawbar. I have an electric draw bar like this one: http://home.insightbb.com/~joevicar3/cheap_drawbar.htm It's not very subtle and would make short work of a 20 taper collet. There are laminations available with a decent-sized central hole that would allow a through-bore motor to be made. http://www.gobrushless.com/shop/index.php?app=ccp0ns=prodshowref=SC+ 65mmstator I think an ISO10 holder could be made to fit at least partly up inside that, and you could probably still get at the face mounting bolts. However I have not found a drawing which shows them. http://www.schaublin.ch/catalogues/PO039-042.pdf Usually outrunners are wound to get low RPM. I would most likely need as much speed as possible. Many of the laminations I have seen have odd numbers of poles so would not work. I do see the above stator has a number of poles that evenly divides by three, so would work if I wind six poles in a row. So let's see, 60 RPS = 3600 RPM. Common VFD's go up to 400 Hz to give around 24,000 RPM. That would do nicely. This would be a slam dunk if I didn't want the draw bar and went with ER collets, hmmm. An Inrunner might package more easily. Rather than a brushless motor, I wonder if gearing up the existing spindle is an option. I have seen a centrifugal supercharger drive which used friction drive to achieve a large speed increase using only a slightly resilient outer drive ring, and slightly-floating-mounted planets. These are almost ready-made for the planet job: http://simplybearings.co.uk/shop/advanced_search_result.php?categories _id=44611_10=9205_121_210=-122_220=9205_2223_230=9205_23x=22y=9 extra_field_filter=1 I found this: http://www.tormach.com/product_pcnc_acc_speeder.html I suppose a smooth belt from the main spindle to an offset idler axle then a belt back to an on-axis secondary spindle would work, but then there would be no fancy high-tech electronics involved. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/index.html California, USA -- RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
