Prototrak Plus Retrofit with Mesa 7i77 & 5i25 cards

andypugh wrote:

Todd Zuercher wrote: It is showing nearly a 1 inch following error during the acceleration phase of the move.

Isn't that 6 milli-inches? Or am I misunderstanding?
(I had been interpreting it as microns, and thinking it looked quite good)

Oops, I saw the 200m/div for the vel-cmd and thought that was the scale for the following error. In that case it wasn't that bad.

Many thanks!

The velocity trace is back on in the hal meter.




compare this to prior screenshot of nearly same name.

many thanks!

Try setting your max_acceleration to 8 or 10, (and I think you might be able to set the max_velocity a bit higher try 1 or 2).

What does more FF2 do?

Many thanks, Todd! The f.error is best yet.

Attached are a few pics and .ini file, read file name for description of trace.







many, many thanks to all that have been part of this project!

Many thanks!


Attached are a few pics of hal trace after ini file max- vel go from 1.0 (in prior post) to 1.5 and then to 2.0, read file name.




Edit: This is the best f.error setting,(the gain is set very high!) : forum.linuxcnc.org/media/kunena/attachme...00003_2017-05-08.png

The f.error is lower than ever!

Many, many thanks!

Thanks to Todd, Andy, tommylight and lakeweb for your kindly help!

This is the lowest hal scope trace of the f.error value, notice the gain is set lower than the other hal trace so far. I am very thankful to all, that make this place happen!



many thanks