Re: [Emc-users] multiple instances of emc?

On Sat, Apr 02, 2011 at 03:51:52PM -0400, Ed Nisley wrote: > On Sat, 2011-04-02 at 15:33 +0100, Steve Blackmore wrote: > > The custom kernel says edit menu.lst - doesn't exist any more > > The Grub2 file is /boot/grub/grub.cfg. It looks different, but gets > basically the same treatment as Grub1's

Re: [Emc-users] multiple instances of emc? - Isolcpus

On Sat, 02 Apr 2011 19:13:14 -0500, you wrote: >I did this page a while ago ... > >But being a fellow Linux Crash Test Dummy ... I wrote this out so I >didn't have to remember all of it. > >http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?EMC_Ubuntu91 > >Line #28 Thanks for that Dave. Done that this

Re: [Emc-users] multiple instances of emc?

On 4/2/2011 6:20 PM, Steve Blackmore wrote: > On Sat, 02 Apr 2011 16:16:14 -0400, you wrote: > > >> A relatively quick google search turns up this page >> , which tells all >> about configuring grub2. >> >> The EMC wiki could have something added th

Re: [Emc-users] Tool Change

this might help: http://www.mail-archive.com/emc-users@lists.sourceforge.net/msg19482.html -mah Am 03.04.2011 um 00:00 schrieb Dave Christman: > Is there a way to do a cut, move the router to the top of the Z axis, > stop the program, manually change the tool bit, MANUALLY move the Z axis > t

Re: [Emc-users] Beating Grub2 into submission

On Sun, 2011-04-03 at 17:47 +1000, Erik Christiansen wrote: > a kosher way to make grub take boot parameters That's easy: GRUB_CMDLINE_LINUX isolcpus=1 What's hard (at least for me) is putting that parameter *only* on the RTAI kernel line and leaving the stock kernel lines untouched. If you can

[Emc-users] Stepper setup

Hi, I'm new to EMC2, so please help me correctly understand stepper setup. I have DMM tech servos in step mode, 2000 steps per rev, Step Time is 2000 ns, Step Space is 1000 ns, Dir Hold and Setup 1 ns, Latency is 6500 ns. Stepconf gives Min base period 15500 ns and Max Step rate 64516 Hz. But c

Re: [Emc-users] Android powered touch screen tablets

Dave, While none exist at this point, it would be possible to build an interface around the telnet like interfaces of emcrsh (http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Emcrsh) and possibly halrmt (http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Halrmt). FTP or other means of file transfer would be n

Re: [Emc-users] Single to Three Phase Rotary Converters

John, I think it is finally done... sorry for the delay. http://gnipsel.com/shop/rpc/rpc.xhtml John John Crane wrote: > John, > > Thanks for the update. > > JRC > > On Sun, Mar 27, 2011 at 6:02 AM, John Thornton wrote: > > >> I can't find my drawings atm, so I'm recreating them from scratc

Re: [Emc-users] Stepper setup

On Sunday, April 03, 2011 10:06:18 AM Andrew did opine: > Hi, > I'm new to EMC2, so please help me correctly understand stepper setup. I > have DMM tech servos Googling for DMM tech, I was unable to find any readily posted info that would be helpful. Perhaps buried in the PDF's from their site?

Re: [Emc-users] Single to Three Phase Rotary Converters

On Sunday, April 03, 2011 10:46:26 AM John Thornton did opine: > John, > > I think it is finally done... sorry for the delay. > > http://gnipsel.com/shop/rpc/rpc.xhtml > > John > How efficient would you say this is John? I can lay my hands on a 15 hp 3 phase motor for the base iron. And how

Re: [Emc-users] Single to Three Phase Rotary Converters

It's won't draw anything close to 35 amps and a lot of the currrent it draws will be reactive power (KVARS) which your power meter does not sense (at least it should not). 15 hp is pretty big though, but if the price is right, I'd try it out. The downside is that you will need a lot of caps t

Re: [Emc-users] Single to Three Phase Rotary Converters

John, Thanks so much. JRC On Sun, Apr 3, 2011 at 9:18 AM, John Thornton wrote: > John, > > I think it is finally done... sorry for the delay. > > http://gnipsel.com/shop/rpc/rpc.xhtml > > John > > John Crane wrote: > > John, > > > > Thanks for the update. > > > > JRC > > > > On Sun, Mar 27, 20

Re: [Emc-users] Stepper setup

Thank you, Gene! The fact, that 2 periods per step not needed any more, makes it clear. Generally, the motors already moving, but I started looking through manuals and run into these things that confused me. My machine is hexapod. The only video for now is http://www.youtube.com/watch?v=MTPkw5BNm

Re: [Emc-users] Single to Three Phase Rotary Converters

On Sun, 2011-04-03 at 10:52 -0400, gene heskett wrote: ... snip > I would have a hard time justifying an idling current draw of 35 amps a leg > from the 240 to run a 3 horse motor on the machine. This links covers a remote start setup: http://homemetalshopclub.org/projects/phconv/phconv.html Th

Re: [Emc-users] Stepper setup

On 3 April 2011 14:07, Andrew wrote: > I'm new to EMC2, so please help me correctly understand stepper setup. I > have DMM tech servos in step mode, I am glad that somebody has tried those, the pricing looks very good :-) Is there any option to run them in PWM mode and close the loop in EMC2? T

Re: [Emc-users] Stepper setup

2011/4/3 andy pugh > I am glad that somebody has tried those, the pricing looks very good :-) > This is exactly why I purchased them. Much better than steppers and just a little more expensive. > Is there any option to run them in PWM mode and close the loop in EMC2? Yes, the drives itself c

Re: [Emc-users] Android powered touch screen tablets

On 4/3/2011 9:26 AM, Eric H. Johnson wrote: > Dave, > > While none exist at this point, it would be possible to build an interface > around the telnet like interfaces of emcrsh > (http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Emcrsh) and possibly halrmt > (http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?

Re: [Emc-users] Single to Three Phase Rotary Converters

I run my lathe and mill from it. The lathe is about 7.5hp spindle and the mill is about 7.5hp spindle. And of course it is so convenient I just turn it on when needed and off when not. My EMC machines the computer is on 120vac so I only need the phase converter on when machining. I just checked

Re: [Emc-users] Single to Three Phase Rotary Converters

I actually have a 24vdc control on the lathe that starts/stops the phase converter right from the lathe front panel. John Kirk Wallace wrote: > On Sun, 2011-04-03 at 10:52 -0400, gene heskett wrote: > ... snip > >> I would have a hard time justifying an idling current draw of 35 amps a leg >

Re: [Emc-users] multiple instances of emc?

Don't let the Hal layer intimidate you.It was meant to be thought of as "software building blocks". There was an attempt at making an graphical editor for the Hal layer at one point so you could drag and drop function blocks and "wire" them up on screen. If you think of it as "wiring up" v

Re: [Emc-users] Single to Three Phase Rotary Converters

On Sunday, April 03, 2011 04:58:59 PM Dave did opine: > It's won't draw anything close to 35 amps and a lot of the currrent it > draws will be reactive power (KVARS) which your power meter does not > sense (at least it should not). > > 15 hp is pretty big though, but if the price is right, I'd tr

Re: [Emc-users] Stepper setup

On Sunday, April 03, 2011 05:04:41 PM Andrew did opine: > Thank you, Gene! > > The fact, that 2 periods per step not needed any more, makes it clear. > Generally, the motors already moving, but I started looking through > manuals and run into these things that confused me. > I could see that. ;)

Re: [Emc-users] Single to Three Phase Rotary Converters

On Sunday, April 03, 2011 05:15:32 PM Kirk Wallace did opine: > On Sun, 2011-04-03 at 10:52 -0400, gene heskett wrote: > ... snip > > > I would have a hard time justifying an idling current draw of 35 amps > > a leg from the 240 to run a 3 horse motor on the machine. > > This links covers a remo

Re: [Emc-users] Single to Three Phase Rotary Converters

On Sunday, April 03, 2011 05:22:28 PM John Thornton did opine: > I run my lathe and mill from it. The lathe is about 7.5hp spindle and > the mill is about 7.5hp spindle. And of course it is so convenient I > just turn it on when needed and off when not. My EMC machines the > computer is on 120vac

Re: [Emc-users] Single to Three Phase Rotary Converters

Right, Amprobes can only measure absolute current. Theorectically a load could draw 10 amps at 230 volts and it would not spin your power meter at all if it had a power factor of zero. But that is pretty much impossible. If the power factor was 50% then the total watts being consumed and r

Re: [Emc-users] multiple instances of emc? - Isolcpus

On Sun, 03 Apr 2011 09:14:57 +0100, you wrote: >On Sat, 02 Apr 2011 19:13:14 -0500, you wrote: > >>I did this page a while ago ... >> >>But being a fellow Linux Crash Test Dummy ... I wrote this out so I >>didn't have to remember all of it. >> >>http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?EMC_Ubu

Re: [Emc-users] multiple instances of emc? - Isolcpus

On Sunday, April 03, 2011 10:21:02 PM Steve Blackmore did opine: > On Sun, 03 Apr 2011 09:14:57 +0100, you wrote: > >On Sat, 02 Apr 2011 19:13:14 -0500, you wrote: > >>I did this page a while ago ... > >> > >>But being a fellow Linux Crash Test Dummy ... I wrote this out so I > >>didn't have to re

[Emc-users] four/five axis design

Guys, I need to make a tilting head 4-axis, further on also rotating to get the 5th axis. Before I start making parts, has anyone already made a similar machine or own one and would like to provide some details? Using belts as a transmission/gearing is no problem, servo or stepper is an open quest