Hi,
I am confused by an odd stepper problem which I can't understand. The
stepper affected is the one driving my rotary axis and the problem
is
that it won't go fast enough... To explain - if I issue a G1 command
in
MDI, I am limited to a F20 speed as, beyond that, the stepper gets
very
jittery and loses steps (at F40 it gives up altogether). However, if
I
issue a G0 command, the stepper whirls away happily at 3 or 4 times
the
speed and doesn't seem to lose steps at all (i.e. I can send it one
way
and then the other and it returns to where it started.). So, what is
the
difference between a G1 command and a G0 command and how can I get
the
G1 speed to increase reliably up to almost the G0 speed?
I'm running the latest version of EMC2 on Ubuntu (unless I've missed
a
service release in the last 2 weeks ).
--
Best wishes,
Ian
____________
Ian W. Wright
Sheffield UK
"The difference between theory and practice is much smaller in theory
than in practice..."
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