I'm still loosing on Z by the way, I'm starting to suspect a faulty driver.

2009/9/24 Sven Wesley <svenne.d...@gmail.com>

>
> Did new tests, and I reeeaaally have to go low on max speed to get things
> going correct.
> I bought these cards long time ago, but I did expect higher speed even with
> an old PC. The computer is super fast with low jitter (about 6800 in latency
> at most), the power to the drivers is overkill-to-the-top more than enough,
> the servo's are pretty fast too (rated 67 V/10 A) and accelerate good. I had
> to go extremely low on max speed to make sure that the mill will reach its
> position before next line is executed. Now my max speed is 600 mm/min! The
> servo's can easily jog the machine at 12000 and stop hard.
>
> I'll see if I can make any changes by adjusting the PID, the graphs were
> good when I tuned it though but I have very little I-value.
> What do you guys think? Time to buy new drivers?
>
>
>
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