> -----Original Message-----
> From: Marshland Engineering [mailto:[email protected]]
> Sent: February-18-20 3:54 PM
> To: [email protected]
> Subject: Re: [Emc-users] RPI4 is pretty close to a decent machine
>
> Just a correction, I have setup a few stepper systems with LinuxCNC and
> step
> and direction is no problem. The problems came in when using 2KW servo
> drives
> and linear scales on the axis. I just could not get the system to respond
> correctly. From memory the StepConfig didn't seem to get the drives to work
> smoothly. My mistake but I did not know how to fix it.
>
> I have purchased and tried a 80V 20A Servo Drive upgrade Geckodrive G320X
> DG4S-08020 DCS810 from ebay and it worked well on a small motor. I think
> having the servo tuning external to the PC is a good option. This makes the
> LinuxCNC servo installation much easier. '
>
> Cheers Wallace.
I agree. In this day and age with the power of embedded systems I believe the
motors/encoders should be black boxes with a fault output of they have issues.
The STMBL drive is one example. The HP_UHU with Henrik Olsson's dsPIC upgrade
for my brushed DC servos is another. There are probably a few extras. I've
not run the Bergerda AC servo motor and drive long enough but once I made it
past the teething pains with it I have been considering replacing the brushed
DC motors with the AC servos. But all the wiring is already done I'm
reluctant to change things at the moment. Too many other projects.
John
>
>
>
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