ahhh yes this is where this should have went :)
half as much huh does your drive step on rise? step on fall or both?
until i realized that mine stepped on rise and fall i was a bit confounded
myself . also do you have the - pins strapped to ground plane? yep that one
got me too ! the half
I had an issue on my mill - Mesa 5I25 and Gecko G540, where it would loose
steps in the positive X direction. Not much, but a small percentage of
steps.
Turns out I was driving G540 with too narrow pulses, and a small percentage
of the time the Optoisolators on the G540 would miss one of the pulse
On 20 February 2014 15:37, Rusty Russell wrote:
> I am rather new to this, and I don't know of anyone locally to help
> (Huntsville, AL area). Using a Sain Smart B.O.B and Driver boards. All
> three axes work correctly when instructed to traverse in a negative
> direction, however, when instruc
I dont know your board and driver but did come across an
incompatibility between a bob and driver where both have the LED
series resistor needed meaning the opto in the driver is not driven
hard enough.
Dave Caroline
On 20/02/2014, Marius Liebenberg wrote:
> Rusty
> Have look at the pulse width
Rusty
Have look at the pulse width requirements of your BOB and driver board.
You can set it in the HAL file
Look here as well:
wiki.linuxcnc.org/cgi-bin/wiki.pl?Stepper_Drive_Timing
http://linuxcnc.org/docs/html/config/stepper.html
http://www.linuxcnc.org/docs/2.4/html/hal_parallel_port.html
I am rather new to this, and I don't know of anyone locally to help
(Huntsville, AL area). Using a Sain Smart B.O.B and Driver boards. All
three axes work correctly when instructed to traverse in a negative
direction, however, when instructed positive, only travel half the
distance. I have trie
