Help with "Step Timing Calculator"

JT, save as did the trick, thanks.

All I need now is for Anaheim Automation to give me values.
They don't seem to be able to find ANY documents for the driver!
I haven't found much when searching via Google either.
Her is a long shot, dose anyone have paper work for a Anaheim Automation DPF 65003 by any chance?

Nearest I can find is that the DPF65003 was replaced with the DPF72003

www.anaheimautomation.com/support/links/...ete-replacements.php

This is the spec sheet for the 72003
www.anaheimautomation.com/manuals/steppe...%20Users%20Guide.pdf

The only tuning data is that the clock inputs are 15 microseconds minimum

regards

I think I told you in your other thread that these old Anaheim drives should have the step timings set for 15,000 (or 15 microseconds). This might seem way slow when compared to the timings for some of the other drive setting examples used in Step-config. But you have to remember most if not all of those are micro-stepping drives and this is a half step drive (400 steps/rev). A step rate of 15 microseconds to this drive would actually be commanding your motors to turn at 10,000 RPM (if I did my math right). Some how I doubt you will ever need to go that fast (or that the motors could).

Hi Todd,

Yes, you did share timing with me. I think it was 10,000 if my memory is correct.
I believe that is what was used.

I have been reluctant to bother you folks here on the forum with the situation I'm dealing with.
I thought I should explore the instructions in the manual first.
This subject is surprisingly deep (so many things to consider), if I was going to need to have this knowledge on a daily basis I could see pursuing all of this, but as I only need it to get things going for now I submit it seems more prudent to just share my issue and revisit the details later.

When I run the “testngc” file under “Step Timing” in the “Stepper Diagnostics” chapter of the manual,
X axis has no problems, Y axis struggles (I’m losing steps), and Z axis just stalls and locks up.
This test seems pretty aggressive, G0 results in a rather high lineal feed rate. (Stupid high)! Can I change this?

When I run the “axisngc” program (dry, no material/cutting), it seems able, the Y axis growls however on arcs.
It's clear I have a configuration problem here.

If I am unable to get the values needed to calculate an accurate:
“BASE_PERIOD”
“MAX_VELOSITY”
“INPUT_SCALE”
What should I do?
The manual says “No Guessing”, I may not have a choice.

The G0 speeds are set by your max velocity settings in the ini file. This and the acceleration settings for each axis are some of the first places you should look for fixing your missing steps. Don't forget that the velocities in the ini file are in units per second. So if you have set your machine up in inches it will be inches per second (not the inches per minute that your feed rates and such probably use). You may also need to look to be sure there are not any mechanical issues causing problems as well.

your problems are in the max acceleration and and max velocity areas set in your INI files . not the actual stepper driver , as todd suggests
with older drives which are either full step or half step drives , setting at 10,000 to 15,000 should suit fine .

also what stepper motors and stepper power supply are you using , please let us know the ratings ?
also look at the default max velocity and acceleration settings they probably are miles out .

post your current hal and ini files would help .

it the drives appear to instantly lock up then you are trying to either run the steppers far to fast than they are capable . so cut the max acceleration and velocity values way down
it's easier to start with the drives turning slowly and then increase values on these older drives .

the z axis is usualy the most difficult due to the weight it's carrying and the effects of gravity