Re: [Emc-users] Interesting tool changer

2012-06-15 Thread andy pugh
On 15 June 2012 04:28, charles green wrote: > it is not a tool changer, it is a spindle changer.  there is probably a gear > mechansim somewhere in the middle of the carousel that engages whichever > spindle is pointing at the table to a single spindle motor. I did wonder if that was the case,

Re: [Emc-users] quick boot

2012-06-15 Thread andy pugh
On 15 June 2012 01:54, Stuart Stevenson wrote: > I have not seen a car with open ECU software. There is always something *NOT > * open even with an aftermarket configurable system. I was meaning "open" rather than "Open" inasmuch as OEM ECUs in most vehicles are locked down very tightly and won'

Re: [Emc-users] Interesting tool changer

2012-06-15 Thread charles green
huzza --- On Fri, 6/15/12, andy pugh wrote: > From: andy pugh > Subject: Re: [Emc-users] Interesting tool changer > To: "Enhanced Machine Controller (EMC)" > Date: Friday, June 15, 2012, 2:01 AM > On 15 June 2012 04:28, charles green > > wrote: > > it is not a tool changer, it is a spindle ch

Re: [Emc-users] Brushless Servo Selection?

2012-06-15 Thread andy pugh
On 15 June 2012 06:58, Viesturs Lācis wrote: > Unfortunately it requires relatively larger power supply with higher > current output. This is a problem with motors like the Keling ones, with a 48V rated voltage. It is far simpler to make a 300V PSU than a 48V one. Simply rectifying mains voltage

Re: [Emc-users] Brushless Servo Selection?

2012-06-15 Thread Todd Zuercher
That is what I was thinking, the existing motors are quite old and are probably not as strong as they should be either, so if I am buying new drives and motors anyway, I thought switching to servos would be a good idea, especially since I would need to get some sort of hardware step generation to m

Re: [Emc-users] quick boot

2012-06-15 Thread Dave
On 6/15/2012 5:29 AM, andy pugh wrote: > On 15 June 2012 01:54, Stuart Stevenson wrote: > > >> I have not seen a car with open ECU software. There is always something *NOT >> * open even with an aftermarket configurable system. >> > I was meaning "open" rather than "Open" inasmuch as OEM

Re: [Emc-users] quick boot

2012-06-15 Thread Jon Elson
Mark Cason wrote: > >Modern fuel injectors, are basically mini electric fuel pumps, and > run non-stop. They run off of a PWM signal, which is altered, based on > what the Oxygen (O2) sensors, and the Mass AirFlow sensor (MAF), are > telling it. On every 4 cylinder engine that I've worked

Re: [Emc-users] Brushless Servo Selection?

2012-06-15 Thread Kirk Wallace
On Fri, 2012-06-15 at 10:53 +0100, andy pugh wrote: > On 15 June 2012 06:58, Viesturs Lācis wrote: > > > Unfortunately it requires relatively larger power supply with higher > > current output. > > This is a problem with motors like the Keling ones, with a 48V rated voltage. > It is far simpler

Re: [Emc-users] Brushless Servo Selection?

2012-06-15 Thread Viesturs Lācis
2012/6/15 andy pugh : > On 15 June 2012 06:58, Viesturs Lācis wrote: > >> Unfortunately it requires relatively larger power supply with higher >> current output. > > This is a problem with motors like the Keling ones, with a 48V rated voltage. > It is far simpler to make a 300V PSU than a 48V one.

Re: [Emc-users] Brushless Servo Selection?

2012-06-15 Thread Viesturs Lācis
2012/6/15 Kirk Wallace : > > Building an Antek supply shouldn't be too expensive, but I haven't > checked prices recently. > http://www.antekinc.com/index.php > http://www.antekinc.com/gview.php > Thanks for the links! 155$ is little more that I would like, especially if it is a shipment from US -

Re: [Emc-users] Brushless Servo Selection?

2012-06-15 Thread Fox Mulder
Am 15.06.2012 19:58, schrieb Viesturs Lācis: > 2012/6/15 Kirk Wallace : >> >> Building an Antek supply shouldn't be too expensive, but I haven't >> checked prices recently. >> http://www.antekinc.com/index.php >> http://www.antekinc.com/gview.php >> > > Thanks for the links! 155$ is little more th

Re: [Emc-users] Brushless Servo Selection?

2012-06-15 Thread Viesturs Lācis
2012/6/15 Fox Mulder : > > The datasheet shows that it has two 32V and one 18V and one 12V output > (Makes in total 4). > On each of the 32V lines you can have up to 23.4A and both other 2A. Thank You! I somehow missed the presence of datasheet. -- Viesturs If you can't fix it, you don't own it

Re: [Emc-users] Brushless Servo Selection?

2012-06-15 Thread andy pugh
On 15 June 2012 18:40, Kirk Wallace wrote: > Another thing I haven't had time to look into is using a Delon doubler > when one needs higher voltage than what is at hand. > http://en.wikipedia.org/wiki/File:Bridge_voltage_doubler.svg > http://en.wikipedia.org/wiki/Voltage_doubler Yes, I built a d

[Emc-users] disabling a stepper motor between moves?

2012-06-15 Thread Scott Hasse
I've been working to create some integration between the reprap RAMPS stepper driver board and LinuxCNC. One interesting thing some 3D printers do is disable the Z stepper motor when it is not moving. This relies on the friction of the Z axis assembly for keeping the head in place, but allows han

Re: [Emc-users] disabling a stepper motor between moves?

2012-06-15 Thread andy pugh
On 15 June 2012 22:03, Scott Hasse wrote: > Putting the question of if this is a good or bad thing aside for a moment, > I'm wondering if anyone has any ideas about how this would be done with > LinuxCNC. If you work your way through this thread, I came up with a comp for the job eventually: htt

Re: [Emc-users] quick boot

2012-06-15 Thread Stuart Stevenson
Gentlemen, I don't know for sure where it will lead but I have the mind set to use LinuxCNC for the entire motor and peripheral systems. I don't know if it will be one processor or more. Given that condition, let's address the motor ECU Does anyone have a suggestion for a board and chip set.

[Emc-users] Calling files

2012-06-15 Thread Marcus Bowman
I can't get the Calling Files feature to work in 2.5 I have placed the file containing the subroutine in the directory named in PROGRAM_PREFIX in the .ini file, but the programme says it can't load the subroutine. I would welcome all suggestions. I couldn't get this to work in earlier versions e

Re: [Emc-users] Brushless Servo Selection?

2012-06-15 Thread cogoman
On 06/14/2012 10:33 PM, Jon Elson wrote: > Thats inch-POUNDS! 16 times inch-Ounces. > 56 In-Lb is 896 Oz-In, so you have made a mistake. Also, steppers, > ESPECIALLY Thanks. I don't have an intuitive feeling for N-m measures, so for quite a while I have been making this mistake in my head. I h

Re: [Emc-users] Calling files

2012-06-15 Thread Sebastian Kuzminsky
Works great for me in 2.5. Please post the relevant part of your .ini file, an "ls -l" in the relevant directory, and the exact gcode command you run to call the file. On Jun 15, 2012, at 16:16 , Marcus Bowman wrote: > I can't get the Calling Files feature to work in 2.5 > I have placed the

Re: [Emc-users] Brushless Servo Selection?

2012-06-15 Thread andy pugh
On 15 June 2012 23:40, cogoman wrote: > Thanks.  I don't have an intuitive feeling for N-m measures, As a comparison, the triple stack NEMA 23 steppers are up to 3Nm. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto

Re: [Emc-users] Calling files

2012-06-15 Thread andy pugh
On 15 June 2012 23:16, Marcus Bowman wrote: > I can't get the Calling Files feature to work in 2.5 > I have placed the file containing the subroutine in the directory named in > PROGRAM_PREFIX in the .ini file, but the programme says it can't load the > subroutine. > I would welcome all suggesti

Re: [Emc-users] Calling files

2012-06-15 Thread Eric H. Johnson
Marcus, In 2.5 you want to use SUBROUTINE_PATH. See: http://www.linuxcnc.org/docs/devel/html/config/ini_config.html#sub:[RS274NGC ]-section It works in 2.5, but not before. Regards, Eric I can't get the Calling Files feature to work in 2.5 I have placed the file containing the subroutine in th

Re: [Emc-users] Brushless Servo Selection?

2012-06-15 Thread N. Christopher Perry
There are about 1.3 Nm to a ft-lb. N. Christopher Perry On Jun 15, 2012, at 18:40, cogoman wrote: > On 06/14/2012 10:33 PM, Jon Elson wrote: >> Thats inch-POUNDS! 16 times inch-Ounces. >> 56 In-Lb is 896 Oz-In, so you have made a mistake. Also, steppers, >> ESPECIALLY > Thanks. I don't have

Re: [Emc-users] Brushless Servo Selection?

2012-06-15 Thread andy pugh
On 16 June 2012 00:37, N. Christopher Perry wrote: > There are about 1.3 Nm to a ft-lb. Which would reduce confusion no end, except motor manufacturers want bigger numbers, so like to use oz-inch in the US. There was a similar tendency in the metric world, but it seems to have passed. You do occ

Re: [Emc-users] Calling files

2012-06-15 Thread gene heskett
On Friday, June 15, 2012 09:05:34 PM Sebastian Kuzminsky did opine: > Works great for me in 2.5. > > Please post the relevant part of your .ini file, an "ls -l" in the > relevant directory, and the exact gcode command you run to call the > file. > I found that common sense seemed to apply; The

Re: [Emc-users] quick boot

2012-06-15 Thread Dave
Considering this is a development, I'd go with what we know works well, an Intel D525MW. That way you have the full array of other supported hardware that is also proven. Use that with a Mini-box wide input range power supply that survives engine cranks and you are on your way. The have a pow

Re: [Emc-users] quick boot

2012-06-15 Thread andy pugh
On 16 June 2012 03:08, Dave wrote: > Use that with a > Mini-box wide input range power supply that survives engine cranks You need to keep alive down to 7V in an automotive context. (well, at least to hit the -30C sign-off). As has been said, this sounds like an interesting project. I would li

Re: [Emc-users] quick boot

2012-06-15 Thread Jon Elson
Stuart Stevenson wrote: > Gentlemen, > I don't know for sure where it will lead but I have the mind set to use > LinuxCNC for the entire motor and peripheral systems. I don't know if it > will be one processor or more. > Given that condition, let's address the motor ECU > > Does anyone have a s

Re: [Emc-users] Brushless Servo Selection?

2012-06-15 Thread Erik Christiansen
On 15.06.12 10:40, Kirk Wallace wrote: > On Fri, 2012-06-15 at 10:53 +0100, andy pugh wrote: > > This is a problem with motors like the Keling ones, with a 48V rated > > voltage. > > It is far simpler to make a 300V PSU than a 48V one. Simply rectifying > > mains voltage into a big capacitor makes

Re: [Emc-users] Surface-Mount

2012-06-15 Thread Moses McKnight
On 01/02/2012 09:46 AM, Peter C. Wallace wrote: > A hair dryer is close but a little too cool. A hot air gun (the type used with > heat-shrink tubing) will work. An inexpensive source for one of these is a paint remover heat gun. I bought several at Lowes (Lumber/Building supplies) for $25 each.