Help please
I have successfully ungraded to EMC2 (Ubuntu) and things are running
smoothly with my Stepper motors using the standard set up files. I had
to add/adjusted the step length which now seems fine, but have changed
little else.
My only problem is, the axis are going the wrong ways!
Easiest way will be editing HAL file which describes the stepper
output pins connection and you are done in 30 seconds ;-)
On 12/28/06, David at home [EMAIL PROTECTED] wrote:
Help please
I have successfully ungraded to EMC2 (Ubuntu) and things are running
smoothly with my Stepper motors
the easiest way that I know of is to simply change the sign in front or your
input scale value for the offending axis. This is in your ini file.
INPUT_SCALE = 81920 0
INPUT_SCALE = -81920 0
sam
- Original Message -
From: Mario. [EMAIL PROTECTED]
To: Enhanced Machine
On Thu, Dec 28, 2006 at 03:08:26PM +, David at home wrote:
Can any tell me the best place add a change of direction command and
what it should look like, please ?
Just make the INPUT_SCALE negative in the .ini.
Chris
Hi all,
With a servo system using quadrature encoder feedback, what is the
slowest speed that can reliably be used ?
I would imagine that there is a problem if there are no counts between
successive calls to the PID loop ? resulting in jerky instead of smooth
slow motion ?
any way to
Mario. wrote:
If power rating for the slow motion would be ~10W or so, a big, fast
microstepper stepper motor, like the Shinano Kenshi SKC83D I use could
do the job. With 250 microsteps per electrical phase I get 12500
microsteps per revolution, what can get you really fluent motion.
But that is
Jon tells me his amplifiers are optimized for 50 kHz PWM frequency. Does
anyone know in what range the PWM frequency is adjustable on the Mesa
M5i20 ?
Its limited to ~33 KHz at the moment (33.3 MHz PCI clock /1024)
It would be pretty easy to use the 50 MHz clock instead to the max would
David,
Try reversing the sign of the INPUT_SCALE parameter in the AXIS_#
section of your .ini file. I used this to reverse the direction of my
steppers i.e.
INPUT_SCALE = 12000 0 turns clockwise
INPUT_SCALE = -12000 0 should turn anti-clockwise
Hope this helps.
Andy
-Original Message-
