Chris Morley wrote:
I'm having a little problem with a hostmot2 stepper setup.
I get following errors that I can't track down a reason for.
Interestingly while watching the following error on halmeter
I can see that the error is way worse in the negative direction
then the positve direction.
So I created a quilt directory on my server where I will always publish my
latest work on this.
Just go to
http://bu3sch.de/patches/emc-linux-rt/
The constant link to the latest patchset is
http://bu3sch.de/patches/emc-linux-rt/LATEST/
There you can get the quilt series, split out and as
Strange! Are you on the master branch? There were some bad hm2 stepgen
ferror problems in early 2.3 releases. The latest official 2.3 release
and the current trunk/master branch have all the fixes.
Yes I am using master. I have last pulled as of yesterday.
from dmesg
hm2 driver
On Mon, 12 Oct 2009, Chris Morley wrote:
Date: Mon, 12 Oct 2009 01:53:06 +
From: Chris Morley chrisinnana...@hotmail.com
Reply-To: EMC developers emc-developers@lists.sourceforge.net
To: EMC DEV emc-developers@lists.sourceforge.net
Subject: [Emc-developers] hostmot2 stepping folowing
Is it possible you simple dont have enough hardware headroom to reach you max
velocity? With 200 usec StepLen and 200 uSec StepSpace, the maximum step rate
the hardware can generate is = ~2500 Hz, I just glanced at the ini file but
doesn't a Scale of 2800 mean 2800 steps per inch? If
On Tue, Oct 13, 2009 at 03:59:05AM +, Chris Morley wrote:
yes 2800 steps per inch.
I don't doubt your math. You would think it should error all the time.
but running in the negative direction is definitely worse then positive.
I bet it has to wait for a direction change, so it starts out
yes 2800 steps per inch.
I don't doubt your math. You would think it should error all the time.
but running in the negative direction is definitely worse then positive.
I bet it has to wait for a direction change, so it starts out
further behind.
No I can jog in negative direction
I wouldn't think that should make a difference.
and why would jogging (at say 25 ipm) be worse then G0 moves at
100 ipm
How is jogging planning different from G0 moves ?
Acceleration is higher. Program G61 to get full acceleration on a
G0 move.
But why would the cruise phase on a
