On 03/22/2018 02:35 PM, andy pugh wrote:
On 22 March 2018 at 18:11, Mark <wendt.m...@gmail.com> wrote:
No dice. Increasing the FERROR limits didn't do much of anything except
once I reached a certain point, which was not a very large change, the Z
axis licked up and the stepper motor let out a rather loud squeal.
This sounds like the offset being applied is unexpectedly huge.
What is output of the lincurve?
And that was sorta what the problem was. Sorta kinda. ;-) Turns out,
we selected one of the wrong pins to send to offset.0.in. Originally we
set it up like this:
net z-raw axis.2.joint-pos-cmd offset.0.in
I spent most of the morning dinking around with FERROR and MIN_FERROR
numbers, as well as accels. Nothing seemed to work or made it worse. I
looked a little closer at the main hal file, and noticed that it didn't
use joint-pos-cmd when passing positions. I changed the line to this:
net z-raw axis.2.motor-pos-cmd offset.0.in
And homing started working, halmeter showed all the correct numbers, and
the Z axis adjusted it's height the length of the table for each of the
x,y pairs I set up in the lin_curve.hal file.
Woo Hoo! Thanks Andy for all your help getting this set up on my
machine. I'll spend tomorrow refining my calibration and updating my
x,y pairs.
Mark
------------------------------------------------------------------------------
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
