Vectric Aspire makes a mess of a circle?

[magicniner]

I ran a couple of parts earlier this week using Mach3 at 300% without noticeable jerkiness on the curves.
Different versions have different issues, mine doesn't seem to have jerky curves above 100% feedrate, I'll check the version but it's the one most recommended for general use on the Mach3 forum,

- Nick

[Ger21]

I think that the issue is PC dependent, and doesn't affect everyone. But it is an issue, and was confirmed by Art, the author of Mach3.

The Machsupport forum is down right now, but I'll try to find some more info when it's back up.

[Neale]

Does using a external motion controller make any difference - is the jerking only when using parallel port?

[John S]

Why do you use FRO at 300%?

Program the feed closer and just go up to 70 or 80%.

Most professional controllers won't allow more than 100%

[Davek0974]

This is with a motion controller, UC100

As i said, i was only doing a dry run so speed was irrelevant, in reality I have never used FRO or SSO !

[magicniner]

Why do you use FRO at 300%?

I would normally adjust feed rate to the middle of the green in CAM but it was a one-off job profiling a couple of small ally plates with a new single flute cutter, I realised it could run faster once I started the job so I just wound it up until it felt right rather than going back to CAM.

- Nick

[Davek0974]

Is the Mach forum having issues - i have not been able to load it since early yesterday morning???

[Ger21]

Yes, I mentioned it in my previous post.