My ultimate goal is to upgrade the DC servo drive in a Bridgeport R2E4,
if/when it ever goes out. Before I go there, I want to practice with a
LinuxCNC installation using steppers on a small desktop mill just to get
familiar with the the software. I'm comfortable with Linux but never
used L
Why are we worrying about step generation when he stated in his original
post his machine has dc servos?
On Feb 28, 2015 8:27 AM, "Brent Loschen" wrote:
>
> Thanks for this explanation. It answered a question that I've had for a
> long time.
> Brent
>
> On 2/27/2015 4:15 PM, andy pugh wrote:
> >
Thanks for this explanation. It answered a question that I've had for a
long time.
Brent
On 2/27/2015 4:15 PM, andy pugh wrote:
> On 27 February 2015 at 22:24, Brent Loschen wrote:
>> If so, what is that data and how is it different from step/dir signals
>> in the default case? Can anyone com
On 27 February 2015 at 22:24, Brent Loschen wrote:
> If so, what is that data and how is it different from step/dir signals
> in the default case? Can anyone comment on the differences or point me
> to documentation that explains it?
It might help to start with the parport stepgen.
That has two
On Fri, 27 Feb 2015, Brent Loschen wrote:
> Date: Fri, 27 Feb 2015 15:24:48 -0700
> From: Brent Loschen
> Reply-To: "Enhanced Machine Controller (EMC)"
>
> To: emc-users@lists.sourceforge.net
> Subject: Re: [Emc-users] Introduction and a couple questions
>
On 2/21/2015 6:27 PM, Kirk Wallace wrote:
> On 02/21/2015 03:42 PM, Brent Loschen wrote:
>> Greetings everyone! New guy here. I've been following the group for
>> several weeks and feel it's time for an intro and to get some
>> suggestions for a small project I'm working on.
> Welcome to the wor
On Sat, Feb 21, 2015 at 7:03 PM, andy pugh wrote:
>
>
>
> So, for your "practice" conversion I would say to go with an eBay TB6560
> board and the parport. You might want to see the board as a "sunk cost"
> that will be replaced later when you are in a better position to specify
> hardware.
>
> -
On 02/21/2015 03:42 PM, Brent Loschen wrote:
> Greetings everyone! New guy here. I've been following the group for
> several weeks and feel it's time for an intro and to get some
> suggestions for a small project I'm working on.
Welcome to the world of LinuxCNC.
> First, my motivation for looki
On 21 February 2015 at 23:42, Brent Loschen wrote:
> My question for the group is, what hardware would you
> all recommend for this task? I've looked at some of the ~$150 Chinese,
> 3 axis, PLC/control/stepper drive combos available on Ebay,
>
I think that those are a good choice for a "practic
Greetings everyone! New guy here. I've been following the group for
several weeks and feel it's time for an intro and to get some
suggestions for a small project I'm working on.
First, my motivation for looking into LinuxCNC. I own an older
Bridgeport R2E4 CNC mill (Boss 9 with DC servo moto
On Wednesday 24 February 2010, dave wrote:
>http://imagebin.ca/view/EBciuLh.html
>
>http://imagebin.ca/view/p9ZA5j.html
>
Kewl. One can really see the hardened surface in those holes. Neat.
>
>These are pics of edm on files. Not your usual sinker job.
>A really good way to for Pete to show off hi
On Wednesday 24 February 2010, Dave wrote:
>Unforch, I am not equipt to do that and rotate the drill tubing at the same
>
>> time, which I found stirred it enough that I could drill another 15 thou
>> before it shorted. I did consider it though, but found that size of
>> tubing was too fragile to
http://imagebin.ca/view/EBciuLh.html
http://imagebin.ca/view/p9ZA5j.html
These are pics of edm on files. Not your usual sinker job.
A really good way to for Pete to show off his software.
Sorry no circuit diagrams,etc. I got sloppy and didn't look at the pics
before I opened my mouth. You kn
Unforch, I am not equipt to do that and rotate the drill tubing at the same
> time, which I found stirred it enough that I could drill another 15 thou
> before it shorted. I did consider it though, but found that size of tubing
> was too fragile to cut a dielectric access port into the side of it
On Wednesday 24 February 2010, Stuart Stevenson wrote:
>> This would be ideal where the area can be kept relatively clean because
>> the dielectric fluid is circulating, but as I found when I was EDMing a
>> couple of
>> broken taps a couple of years back, it falls over when you are in a deep,
>> b
> This would be ideal where the area can be kept relatively clean because the
> dielectric fluid is circulating, but as I found when I was EDMing a couple
> of
> broken taps a couple of years back, it falls over when you are in a deep,
> blind hole, the kero gets so conductive it eventually shorts
On Wednesday 24 February 2010, Dave Engvall wrote:
>> Hi all,
>
>Pete just sent me this:
>
>"
>Here is a short description of my EDM software:
> The software is written in Basic; I run it under linux in single-user
> mode. It issues step and direction signals via parport data pins 1-8 for 1
> t
On Wednesday 24 February 2010, dave wrote:
>Indeed, it would be nice to have EDM capabilities within emc. :-)
>
>Pete has always maintained that the power supply was the easy part. He
>recommended using a RC source to get started and concentrate on getting
>the Z motion/gap distance correct. Then w
> Hi all,
Pete just sent me this:
"
Here is a short description of my EDM software:
The software is written in Basic; I run it under linux in single-user mode.
It issues step and direction signals via parport data pins 1-8 for 1 to 4 axis
motion along a pre-programmed path. That motion is
Indeed, it would be nice to have EDM capabilities within emc. :-)
Pete has always maintained that the power supply was the easy part. He
recommended using a RC source to get started and concentrate on getting
the Z motion/gap distance correct. Then work on orbiting and finally go
for a nice pulsed
From: scut...@gmail.com
> > To: emc-users@lists.sourceforge.net
> > Subject: Re: [Emc-users] introduction to Linux for EDM
> >
> > hi,peter:
> >
> > since you are experienced computer user,so linux is not hard for you
> > ,take it easy. I can give you some
P.S. I am italian, since 2001 in China
P.S.2. what is your name in characters?
> Date: Wed, 24 Feb 2010 10:45:29 +0800
> From: scut...@gmail.com
> To: emc-users@lists.sourceforge.net
> Subject: Re: [Emc-users] introduction to Linux for EDM
>
> hi,peter:
>
> s
Dave Engvall wrote:
> I have no idea if this email still works for Pete. Pete developed a dos app
> for steps-> servo that was pretty cute, including a C axis.
> As a demo he threaded a file with it.
>
OK, so he wasn't using EMC/Linux for that. it was still PLENTY cool!
He had burned a nu
I have no idea if this email still works for Pete. Pete developed a dos app for
steps-> servo that was pretty cute, including a C axis.
As a demo he threaded a file with it.
EMC does have the capability of limiting or stopping feed in a wire edm setup
but no ability AFIK for backing out neces
peter locati wrote:
>
>
>
>
> I am new to Linux
> I have to develop a CNC for a EDM electroerosion sink machine and I decided
> to switch from Windows to Linux
>
> 1. I am looking for some hints on how to begin with Linux: what are the first
> steps? Anyone has some advice based on his own experi
hi,peter:
since you are experienced computer user,so linux is not hard for you
,take it easy. I can give you some sugestion about linux:
1: got a linux and install in your computer,(can use Vmvare etc)
2:familar with commands in daily use
3:konw how to manage your system (sth like system mange
>
>
>
> I am new to Linux
> I have to develop a CNC for a EDM electroerosion sink machine and I
> decided to switch from Windows to Linux
>
> 1. I am looking for some hints on how to begin with Linux: what are
> the first steps? Anyone has some advice based on his own experience?
>
> 2. I would
I am new to Linux
I have to develop a CNC for a EDM electroerosion sink machine and I decided to
switch from Windows to Linux
1. I am looking for some hints on how to begin with Linux: what are the first
steps? Anyone has some advice based on his own experience?
2. I would like to contact
Gene Heskett wrote:
>On Friday 20 November 2009, Chris Knowlton wrote:
>
>
>>OK, I found the data sheets on the chip and I also found a couple of app
>>notes, which helped a bit, now I need some translation of the EMC tags
>>please
>>
>>Step Time: I assume this means the pulse width from rising
On Friday 20 November 2009, Chris Knowlton wrote:
>OK, I found the data sheets on the chip and I also found a couple of app
>notes, which helped a bit, now I need some translation of the EMC tags
>please
>
>Step Time: I assume this means the pulse width from rising edge to falling
>edge?
Or better
OK, I found the data sheets on the chip and I also found a couple of app
notes, which helped a bit, now I need some translation of the EMC tags
please
Step Time: I assume this means the pulse width from rising edge to falling
edge?
Step Space: I assume this is the smallest spacing between pulses
If you know what you need in a power supply, old stereo amps are lying
around unused these days since everybody is switching to 5.5 channel
home theater or better. Each half of a split supply for a 30 watt per
channel 8 OHM amp is usually around 30-35 volts, safe for most stepper
ICs that su
On Thursday 19 November 2009, Chris Knowlton wrote:
>> selection because I haven't a clue what to set them to.
>>
>>
>> The L297-298 chipset doesn't to my knowledge do any microstepping,
>> perhaps that is your problem?
>>
>> > I am using the default motor timings from the L297 default
>
><--- Comp
> selection because I haven't a clue what to set them to.
>
> The L297-298 chipset doesn't to my knowledge do any microstepping, perhaps
> that is your problem?
>
> > I am using the default motor timings from the L297 default
<--- Comprehension DAWNS! These settings have to do ONLY with the board
I have a Lambda supply. And not a cheap one. When I get home I will post a
part number for some more info. (posting from work)
Roger the 100% current.
On Thu, Nov 19, 2009 at 4:20 PM, Dave Caroline
wrote:
> go to 100% of rated current, noise is normal for steppers, squeels can
> be the switch
go to 100% of rated current, noise is normal for steppers, squeels can
be the switching rate,
I use a switchmode supply but it is a commercial Llambda one not a
cheapo (got a freebee) I agree add 4700uf to help on cheaper
supplies. A two start screw will need some torque to drive do you have
geari
On Thursday 19 November 2009, Chris Knowlton wrote:
>My name is Chris and I am a CNC noob :-)
>
>I am setting up a 3 axis router and am getting along nicely, in the build
>but since I am using random second hand steppers from a commercial printer,
>I am having difficulties with the run time perform
4 wire motors all.
I will try inverting the step signal.
On Thu, Nov 19, 2009 at 2:57 PM, Andy Pugh wrote:
> 2009/11/19 Chris Knowlton :
>
> > What do I
> > set them at? This board supports up to 1/16 microsteps.
>
> It rather depends on if you run out of computer speed or motor speed
> first.
2009/11/19 Chris Knowlton :
> What do I
> set them at? This board supports up to 1/16 microsteps.
It rather depends on if you run out of computer speed or motor speed
first. If you can easily drive the motors faster than they can move
the machine, then more microsteps can give you a bit more res
My name is Chris and I am a CNC noob :-)
I am setting up a 3 axis router and am getting along nicely, in the build
but since I am using random second hand steppers from a commercial printer,
I am having difficulties with the run time performance of the steppers.
I have an Aerospace 4 axis control
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