When running a 1/2 meg file from the hard drive (FNC) the motion is not smooth and causes excessive machine vibration.
The file is a series of tiny, consecutive, linear moves.
When running the same file from machine memory, no vibration.
Is there a parameter to help smooth this out when running FNC?
Thanks
Joe V.

0611243-1107 EST USA

1ctoolfool:

I have no experience with a HAAS hard drive. But this is clearly a buffer problem. It implies that the data coming from the drive is read one line (block) at a time and processed with no or virtually no buffering.

The stuttering effect is a standard data starvation problem that occurs in RS232 DNC (drip feed) at low baud rates. This is typically eliminated by using 38.4 or 115.2 kbaud.

In RS232 DNC HAAS uses a large amount of available program memory space for buffering the incoming data. I would expect the same with their hard drive, but your results do not imply this.

Try removing all un-needed O# programs from the machine and see if this has any effect.

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What happened with this situation?