It is exactly as you say. The NanoPro Software just configures the drive to do the motion.
So, it seems I have a bad pulse stream. I will try to use a function generator to input a clean steady pulse signal at the
drives input and see if the motor turns silently and clean at low speeds. Then I'll know for sure, that the reason for this
bad running at low speeds is the high jitter of the clk signal from Mach3.
What I dont understand, I disabled almost every other service on windows, disabled every graphic mode which consumes cpu
speed and this does change nothing...
When I start the driver test program, I think it looks not to bad (smooth).. but sometimes there is a spike.. I will post a screenshot, when am back at the machine.
Is there any information for what is good? Maybe a screenshot from a pc which has proven ok?
What I'm interessted in, have you guys made similar experience with your stepper drives ? So that would mean, that I have
just to accept the way it works now.. or do I hava an issue, which has to be dealt with?
For now, I just see, that I can't get the maxi performance out of the motor/drive with Mach3 controll..
Today I set up LinuxCNC. Results in the same behavior at low speeds. Plus: I get a warning from EMC, that I have somtimes a high delay time.. Seems that there really is an issue. As it seems my chipset is using a SMI Interrupt (System Maintenace Interupt) which is known to destroy real time performance.. hmm.. but to solve that, it seems that I have to recompile some modules under linux..
The same problem should also occur on windows with Mach3...