4th axis is running but nothing else

I think you're now dealing with computer / parallel port / stepgen frequency issues - something I'm not remotely competent to address.

But you may be trying to spin the steppers too fast, although now that I think about it that would probably be a 'following error' and not realtime delay.  See? not in my wheelhouse.

But can you set - temporarily - ALL the axis & joint values in INI file to the same value as A-axis/Joint3 and see what happens? Just copy everything except the names.  If they start working and turning the same speed as the A-axis motor that might be an instructive result.  Don't forget to set the microstepping on the X/Y/Z drives the same as on A (again, temporarily).

There are some very clever folks on this forum who should be able to help.

I tried that and got no reaction. According to Mach 3 this is the pin config for a MicroProto Controller.

I am starting to think its this PC. It is an old Dell GX620 running a Pentium 4.

I dont know what these mean or what a value should be. I am guessing since the largest value in conf wizard is 50000, this computer isnt up to the task?

Any insight appreciated.


Latency test numbers:
Max Jitter
Servo Thread 1527818
Base thread 87784

Linux debian 4.19.0-17-rt-amd64 #1 SMP PREEMPT RT Debian 4.19.194-2 (2021-06-21) x86_64 GNU/Linux

Max jitter is now 30000. Machine runs much better. steppers are the exact same though. 4th axis works like a champ, in testing on conf wizard. Once I launch mill and try to jog I can almost count the steps on the motor as it seems to be running much slower.

In conf wizard am I only running on hal file? where in axis I am running hal plus ini?

Maybe I missed this earlier, but what drives are you using?

What, if any, microstep and current settings do you have them set to?

Were you able to pull up your Mach3 settings for comparison?