Gentlefolk,
Thanks for all the comments and suggestions.
Back looking at the basics. How do I know the motor is 50 steps/rev???
The motor is an Epson EM-257 which I have not been able to find much
about on the Internet.
I held the shaft of the motor and rotated it carefully. 50 steps
(harder
- Ian R Upton upt...@pacific.net.au a écrit :
Gentlefolk,
Thanks for all the comments and suggestions.
Back looking at the basics. How do I know the motor is 50
steps/rev???
The motor is an Epson EM-257 which I have not been able to find much
about on the Internet.
I held the
Gentlefolk,
I added a pointer to the shaft of the motor (like a clock hand) so I
could see what the motor was doing.
I then set the current and acceleration values.
I then ran a series of tests at various steps/rev and fiddled the
velocity until I could get stable performance (consistent
Stick something on the stepper shaft to be used as a pointer (a triangular
piece of paper) and then tell it to move 200 steps. If it moves a complete
revolution, you're done. Other wise try some other common values, 50, 400.
-Original Message-
From: Ian R Upton
On Thu, Sep 10, 2009 at 08:31:24AM +0100, Steve Blackmore wrote:
O118 if [#104 LE [2*#102]]
O119 if [#102 GT #116]
#102 = [#104/2]
O119 endif
O118 endif
are totally meaningless unless you're a programmer.
They're also meaningless to this
2009/9/11 Erik Christiansen dva...@internode.on.net:
Meaningful variable names are the first to fifth rules of programming.
Even assembler language, in the depths of last century, had 'em.
No it didn't! (though some assemblers might have implemented labels, I suppose)
(I remember programming
A 200 step motor is a good thing if you have a five pitch lead screw
(like on a Bridgeport milling machine) and you want each step to be a
thousandth of an inch. That's particularly true if you were back in the
days of paper tape and minimal computing ability.
Ken
Ian R Upton wrote:
2009/9/11 Steve Stallings steve...@newsguy.com:
The most common stepper motors are 50 pole, which
results in 200 steps per revolution when driven by the
4 possible combinations of magnetic polarity of the 2
coils. If you turn them by hand, you will feel the 50
magnetic detents associated
You had hexadecimal. We had to program in decimal before hex was
invented. :-)
(In Roman Numerals.) :-)
Ken
Andy Pugh wrote:
2009/9/11 Erik Christiansen dva...@internode.on.net:
Meaningful variable names are the first to fifth rules of programming.
Even assembler language, in the
The most common style of stepper motors used today have
permanent magnets. These magnets are always pulling and
will try to orient the rotor to one of the 50 pole positions
even when the stator coils are not energized.
When the two coils of the stator are energized, the poles
of the rotor orient
Ah yes programming with C
and X, I, V,L and M
On Fri, Sep 11, 2009 at 7:46 AM, Kenneth Lerman
kenneth.ler...@se-ltd.comwrote:
You had hexadecimal. We had to program in decimal before hex was
invented. :-)
(In Roman Numerals.) :-)
Ken
Andy Pugh wrote:
2009/9/11 Erik Christiansen
On Fri, Sep 11, 2009 at 01:43:46PM +0100, Andy Pugh wrote:
2009/9/11 Steve Stallings steve...@newsguy.com:
If you turn them by hand, you will feel the 50
magnetic detents associated with the 50 poles.
Presumably because the poles retain the magnetic polarity from last
time they were
On Friday 11 September 2009, Ian R Upton wrote:
Gentlefolk,
Thanks for all the comments and suggestions.
Back looking at the basics. How do I know the motor is 50 steps/rev???
The motor is an Epson EM-257 which I have not been able to find much
about on the Internet.
I held the shaft of the
On Friday 11 September 2009, Andy Pugh wrote:
2009/9/11 Erik Christiansen dva...@internode.on.net:
Meaningful variable names are the first to fifth rules of programming.
Even assembler language, in the depths of last century, had 'em.
No it didn't! (though some assemblers might have implemented
I guess there is something about in-no-sense
I look at that bit of numerics and read out loud to myself.
line 118 if line 104 is less or equal to 2 times line 102
line 119 if line 102 is greater than line 116
line 102 equals line 104 divided by 2
line 119 end if
line
I changed the ini file as you told me, but it still does not work.
Some more ideas?
Thorsten
Am Donnerstag, den 10.09.2009, 20:12 +0200 schrieb Thomas Jager:
Try setting:
[RS274NGC]
LAZY_CLOSE = 1
In your ini file.
On Thu, 2009-09-10 at 19:54 +0200, Thorsten Seefeldt wrote:
Hello,
What emc2 version are you using?
Regards,
Alex
- Original Message -
From: Thorsten Seefeldt th.seefe...@gmx.de
To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net
Sent: Saturday, September 12, 2009 1:15 AM
Subject: Re: [Emc-users] EMC G-Code - Calling Files
I changed
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