Re: [Emc-users] (no subject)

2017-08-28 Thread Przemek Klosowski 
On Mon, Aug 28, 2017 at 5:10 PM, Ed  wrote:

>  Am I right that 15 microns translates to .00038 inches?

More like 0.6mil--slightly more but still  software problems aren't the
likely cause. What is the expected resolution from a single motor step?
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Re: [Emc-users] (no subject)

2017-08-28 Thread Ed 

On 08/28/2017 03:25 PM, Johann Beukes wrote:

Ok guys
Here's some more info on my problem.
I am very new to cnc so bare with me.
For example: Let say I want to cut a 10mm OD. The first part will be spot
on. The second will be 15 microns under and the third will be 15 microns
over and so it fluctuates with no definate repeatablility.
I have checked the x axis and my backlash is only 5 microns so the
mechanical side is ruled out.

First verify the actual placement of the tool.  Make a simple program 
that moves the tool in and out against a dial indicator using a feed 
rate rather than rapid moves. If the movement repeats very consistently 
then my guess is the cutting process itself. It is common to see 
variations depending on material and condition, sharpness of the tool, 
angle of tool, feedrate, surface speed, etc. All of these can affect how 
the diameter and finish come out.  Am I right that 15 microns translates 
to .00038 inches? Ifso that is not to bad if dealing with gummy 1018 
material.


Ed.


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Re: [Emc-users] (no subject)

2017-08-28 Thread Johann Beukes 
Ok guys
Here's some more info on my problem.
I am very new to cnc so bare with me.
For example: Let say I want to cut a 10mm OD. The first part will be spot
on. The second will be 15 microns under and the third will be 15 microns
over and so it fluctuates with no definate repeatablility.
I have checked the x axis and my backlash is only 5 microns so the
mechanical side is ruled out.

Here are some perameters from the .ini file
Dirsetup is 2500
Dirhold is 2500
Steplen 5000
Stepspace 5000
Stepscale -322 on a 2.5mm ballscrew.
Using a leadshine D808 drive.

I have been battling with this for 8 weeks with no success.

Any help from you will be appreciated.

Awaiting your responce.

Best regards.

Johann Beukes

On 28 Aug 2017 14:47, "Gene Heskett"  wrote:

On Monday 28 August 2017 07:52:14 jeremy youngs wrote:

> My 860 drives gave me a very hard time early on.only much sifting
> through the Chenglish did I realize the drive steps on the rise and
> fall. Requiring 1/2 the steps calculated.

I have not found that to be the case here with a 'DM'860. Odd indeed.
The only comment I'd make is that the microstep current mapping is
somewhat less than ideal.  It might be enlightening to put a scope probe
on the supply lines? Perhaps its ringing with the changes in current
draw?  Just a SWAG mind you.
>
> On Aug 27, 2017 11:12 PM, "Johann Beukes"  wrote:
> > Hi guys
> > I am struggeling alot with my lathe X axis. The machine does not
> > hold size at all. I am using The Leadshine ESM-22430 motor and the
> > DS808 drive. The Dirsetup is set at 2500, Dirhold 2500, Steplen
> > 5000, Stepspace 5000 and stepscale at -322. The ballscrew has a
> > 2.5mm pitch and the steps per rev are set at 800.
> > Can anybody please give me some advice?
> > Thanks
> > 
> > --
> > Check out the vibrant tech community on one of the world's most
> > engaging tech sites, Slashdot.org! http://sdm.link/slashdot
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Cheers, Gene Heskett
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 soap, ballot, jury, and ammo. Please use in that order."
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Genes Web page 


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Re: [Emc-users] (no subject)

2017-08-28 Thread Gene Heskett 
On Monday 28 August 2017 07:52:14 jeremy youngs wrote:

> My 860 drives gave me a very hard time early on.only much sifting
> through the Chenglish did I realize the drive steps on the rise and
> fall. Requiring 1/2 the steps calculated.

I have not found that to be the case here with a 'DM'860. Odd indeed.  
The only comment I'd make is that the microstep current mapping is 
somewhat less than ideal.  It might be enlightening to put a scope probe 
on the supply lines? Perhaps its ringing with the changes in current 
draw?  Just a SWAG mind you.
>
> On Aug 27, 2017 11:12 PM, "Johann Beukes"  wrote:
> > Hi guys
> > I am struggeling alot with my lathe X axis. The machine does not
> > hold size at all. I am using The Leadshine ESM-22430 motor and the
> > DS808 drive. The Dirsetup is set at 2500, Dirhold 2500, Steplen
> > 5000, Stepspace 5000 and stepscale at -322. The ballscrew has a
> > 2.5mm pitch and the steps per rev are set at 800.
> > Can anybody please give me some advice?
> > Thanks
> > 
> > --
> > Check out the vibrant tech community on one of the world's most
> > engaging tech sites, Slashdot.org! http://sdm.link/slashdot
> > ___
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> > Emc-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/emc-users
>
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Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page 

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Re: [Emc-users] (no subject)

2017-08-28 Thread Johann Beukes 
Hi Jeremy
How do I calculage that and where would I do the correction in the settings?
Thanks

On 28 Aug 2017 13:52, "jeremy youngs"  wrote:

> My 860 drives gave me a very hard time early on.only much sifting through
> the Chenglish did I realize the drive steps on the rise and fall. Requiring
> 1/2 the steps calculated
>
> On Aug 27, 2017 11:12 PM, "Johann Beukes"  wrote:
>
> > Hi guys
> > I am struggeling alot with my lathe X axis. The machine does not hold
> size
> > at all. I am using The Leadshine ESM-22430 motor and the DS808 drive. The
> > Dirsetup is set at 2500, Dirhold 2500, Steplen 5000, Stepspace 5000 and
> > stepscale at -322. The ballscrew has a 2.5mm pitch and the steps per rev
> > are set at 800.
> > Can anybody please give me some advice?
> > Thanks
> > 
> > --
> > Check out the vibrant tech community on one of the world's most
> > engaging tech sites, Slashdot.org! http://sdm.link/slashdot
> > ___
> > Emc-users mailing list
> > Emc-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/emc-users
> >
> 
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Re: [Emc-users] (no subject)

2017-08-28 Thread jeremy youngs 
My 860 drives gave me a very hard time early on.only much sifting through
the Chenglish did I realize the drive steps on the rise and fall. Requiring
1/2 the steps calculated

On Aug 27, 2017 11:12 PM, "Johann Beukes"  wrote:

> Hi guys
> I am struggeling alot with my lathe X axis. The machine does not hold size
> at all. I am using The Leadshine ESM-22430 motor and the DS808 drive. The
> Dirsetup is set at 2500, Dirhold 2500, Steplen 5000, Stepspace 5000 and
> stepscale at -322. The ballscrew has a 2.5mm pitch and the steps per rev
> are set at 800.
> Can anybody please give me some advice?
> Thanks
> 
> --
> Check out the vibrant tech community on one of the world's most
> engaging tech sites, Slashdot.org! http://sdm.link/slashdot
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> https://lists.sourceforge.net/lists/listinfo/emc-users
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Re: [Emc-users] (no subject)

2017-08-28 Thread Gene Heskett 
On Monday 28 August 2017 07:02:27 Johann Beukes wrote:

> Hi Gene
> Thanks so much. Would it be possible to get yojr mail adress so I can
> send you some more info on the drives and so forth please?
> beukes1...@gmail.com Thanks
>
> On 28 Aug 2017 12:48, "Gene Heskett"  wrote:

You have it above. However, sending it to me as a PM does the list a 
severe disservice.

Send it to the list so that all can learn, including what you eventually 
did to fix it.  Mutual education for all.

Are you new to linux?  Its sometimes hard for a Windows user, used to all 
the secrecy involved, to appreciate the openness of the linux world. 
Come on in, I think you will find the folks here very helpful. There are 
on this list, the authors of this software, some of which have their own 
products to sell and support. Many are also machine shop 
owner/operators.

As for me, the resident old fart, I'll be 83 in October, retired tv chief 
engineer, C.E.T. & what used to be a 1st Phone.  I am not an all 
encompassing guru, and the only "diploma's" I have are grammer school, 
G.E.D. and the University of Hard Knocks. But I have accumulated a 
decent list of BTDT's.

So send away, but send it to the list please.

> > On Monday 28 August 2017 03:49:17 Marius Liebenberg wrote:
> > > Hi Johan
> > >
> > > You will have to provide a bit more detail in order to get
> > > assistance. Please explain what you mean by "does not hold size at
> > > all" Explain how:
> > > 1) you discovered the problem and
> > > 2) how you measured the result and
> > > 3) what you done to solve it thus far.
> > >
> > > Also give details on the controller version and GUI that you use.
> >
> > This might be that wobbly drunken duck created when the drivers are
> > wired - to ground, and + to the signal. Most circuits can pull down
> > as much as 10x what they can pull up, which lights the led in the
> > drivers input opto stuff up well. Reverseing that drive polarity is
> > easy though.
> >
> > You tie the + terminal to the logic's + supply, and the - signal to
> > the breakout boards output.
> >
> > I've never heard of that driver, so some info on it could be
> > usefull.
> >
> > > -- Original Message --
> > > From: "Johann Beukes" 
> > > To: emc-users@lists.sourceforge.net
> > > Sent: 2017-08-28 06:12:00
> > > Subject: [Emc-users] (no subject)
> > >
> > > >Hi guys
> > > >I am struggeling alot with my lathe X axis. The machine does not
> > > > hold size
> > > >at all. I am using The Leadshine ESM-22430 motor and the DS808
> > > > drive. The
> > > >Dirsetup is set at 2500, Dirhold 2500, Steplen 5000, Stepspace
> > > > 5000 and stepscale at -322. The ballscrew has a 2.5mm pitch and
> > > > the steps per rev
> > > >are set at 800.
> > > >Can anybody please give me some advice?
> > > >Thanks
> > > >-
> > > > - Check out the vibrant tech community on one of the
> > > > world's most engaging tech sites, Slashdot.org!
> > > > http://sdm.link/slashdot
> > > > ___
> > > >Emc-users mailing list
> > > >Emc-users@lists.sourceforge.net
> > > >https://lists.sourceforge.net/lists/listinfo/emc-users
> > >
> > > ---
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> > > world's most engaging tech sites, Slashdot.org!
> > > http://sdm.link/slashdot
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> > > Emc-users@lists.sourceforge.net
> > > https://lists.sourceforge.net/lists/listinfo/emc-users
> >
> > Cheers, Gene Heskett
> > --
> > "There are four boxes to be used in defense of liberty:
> >  soap, ballot, jury, and ammo. Please use in that order."
> > -Ed Howdershelt (Author)
> > Genes Web page 
> >
> > 
> > --
> > Check out the vibrant tech community on one of the world's most
> > engaging tech sites, Slashdot.org! http://sdm.link/slashdot
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Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page

Re: [Emc-users] (no subject)

2017-08-28 Thread Johann Beukes 
Hi Gene
Thanks so much. Would it be possible to get yojr mail adress so I can send
you some more info on the drives and so forth please? beukes1...@gmail.com
Thanks

On 28 Aug 2017 12:48, "Gene Heskett"  wrote:

> On Monday 28 August 2017 03:49:17 Marius Liebenberg wrote:
>
> > Hi Johan
> >
> > You will have to provide a bit more detail in order to get assistance.
> > Please explain what you mean by "does not hold size at all"
> > Explain how:
> > 1) you discovered the problem and
> > 2) how you measured the result and
> > 3) what you done to solve it thus far.
> >
> > Also give details on the controller version and GUI that you use.
>
> This might be that wobbly drunken duck created when the drivers are
> wired - to ground, and + to the signal. Most circuits can pull down as
> much as 10x what they can pull up, which lights the led in the drivers
> input opto stuff up well. Reverseing that drive polarity is easy though.
>
> You tie the + terminal to the logic's + supply, and the - signal to the
> breakout boards output.
>
> I've never heard of that driver, so some info on it could be usefull.
>
> > -- Original Message --
> > From: "Johann Beukes" 
> > To: emc-users@lists.sourceforge.net
> > Sent: 2017-08-28 06:12:00
> > Subject: [Emc-users] (no subject)
> >
> > >Hi guys
> > >I am struggeling alot with my lathe X axis. The machine does not hold
> > >size
> > >at all. I am using The Leadshine ESM-22430 motor and the DS808 drive.
> > >The
> > >Dirsetup is set at 2500, Dirhold 2500, Steplen 5000, Stepspace 5000
> > > and stepscale at -322. The ballscrew has a 2.5mm pitch and the steps
> > > per rev
> > >are set at 800.
> > >Can anybody please give me some advice?
> > >Thanks
> > >-
> > >- Check out the vibrant tech community on one of the world's
> > > most engaging tech sites, Slashdot.org! http://sdm.link/slashdot
> > >___
> > >Emc-users mailing list
> > >Emc-users@lists.sourceforge.net
> > >https://lists.sourceforge.net/lists/listinfo/emc-users
> >
> > ---
> > This email has been checked for viruses by Avast antivirus software.
> > https://www.avast.com/antivirus
> > --
> > Check out the vibrant tech community on one of the world's
> > most engaging tech sites, Slashdot.org! http://sdm.link/slashdot
> > ___
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> > Emc-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/emc-users
>
>
> Cheers, Gene Heskett
> --
> "There are four boxes to be used in defense of liberty:
>  soap, ballot, jury, and ammo. Please use in that order."
> -Ed Howdershelt (Author)
> Genes Web page 
>
> 
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Re: [Emc-users] (no subject)

2017-08-28 Thread Gene Heskett 
On Monday 28 August 2017 03:49:17 Marius Liebenberg wrote:

> Hi Johan
>
> You will have to provide a bit more detail in order to get assistance.
> Please explain what you mean by "does not hold size at all"
> Explain how:
> 1) you discovered the problem and
> 2) how you measured the result and
> 3) what you done to solve it thus far.
>
> Also give details on the controller version and GUI that you use.

This might be that wobbly drunken duck created when the drivers are 
wired - to ground, and + to the signal. Most circuits can pull down as 
much as 10x what they can pull up, which lights the led in the drivers 
input opto stuff up well. Reverseing that drive polarity is easy though.  

You tie the + terminal to the logic's + supply, and the - signal to the 
breakout boards output.

I've never heard of that driver, so some info on it could be usefull.

> -- Original Message --
> From: "Johann Beukes" 
> To: emc-users@lists.sourceforge.net
> Sent: 2017-08-28 06:12:00
> Subject: [Emc-users] (no subject)
>
> >Hi guys
> >I am struggeling alot with my lathe X axis. The machine does not hold
> >size
> >at all. I am using The Leadshine ESM-22430 motor and the DS808 drive.
> >The
> >Dirsetup is set at 2500, Dirhold 2500, Steplen 5000, Stepspace 5000
> > and stepscale at -322. The ballscrew has a 2.5mm pitch and the steps
> > per rev
> >are set at 800.
> >Can anybody please give me some advice?
> >Thanks
> >-
> >- Check out the vibrant tech community on one of the world's
> > most engaging tech sites, Slashdot.org! http://sdm.link/slashdot
> >___
> >Emc-users mailing list
> >Emc-users@lists.sourceforge.net
> >https://lists.sourceforge.net/lists/listinfo/emc-users
>
> ---
> This email has been checked for viruses by Avast antivirus software.
> https://www.avast.com/antivirus
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Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page 

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Re: [Emc-users] (no subject)

2017-08-28 Thread Marius Liebenberg 

Hi Johan

You will have to provide a bit more detail in order to get assistance.
Please explain what you mean by "does not hold size at all"
Explain how:
1) you discovered the problem and
2) how you measured the result and
3) what you done to solve it thus far.

Also give details on the controller version and GUI that you use.

-- Original Message --
From: "Johann Beukes" 
To: emc-users@lists.sourceforge.net
Sent: 2017-08-28 06:12:00
Subject: [Emc-users] (no subject)


Hi guys
I am struggeling alot with my lathe X axis. The machine does not hold 
size
at all. I am using The Leadshine ESM-22430 motor and the DS808 drive. 
The

Dirsetup is set at 2500, Dirhold 2500, Steplen 5000, Stepspace 5000 and
stepscale at -322. The ballscrew has a 2.5mm pitch and the steps per 
rev

are set at 800.
Can anybody please give me some advice?
Thanks
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