Hello Guest it is March 28, 2024, 03:19:28 PM

Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.


Messages - dugpits

Pages: 1
1
General Mach Discussion / Re: Only getting 85% of kernel speed in mach 3
« on: November 04, 2011, 11:06:56 PM »
Sounds like your computer is just not too great for Mach, Dells can be problematic especially ones with onboard graphics.
What does the driver test actually look like?
If you want to attach your xml I can have a look to see if there are any issues there but to be honest sounds more computer related.
Hood

I'll try to attach XML tomorrow.  No internet on the Mach box.  "What does the driver test actually look like?"  - Not really sure what you mean.  It stays pretty flatlined.  If I shake the mouse around i get a few tiny jumps like lines perpendicular to the flatline.  If I switch kernel speeds it will take a couple seconds then be at "system excellent" - All the way up to 100Khz.  Once at speed, it is pretty stable - especially at 25, 35, 45 Khz - maybe moves a couple hundred Hz at most.  Looks ideal on the surface.  :(

As another note.  If I have the Mach diagnostics up, showing 21 khz, and I open driver test at the same time and run 25khz, the diagnostic window also changes.  BUT...then I can't go and have mach actually move the axis around, so I have to restart it and its back to 21 again.

Probably is cpu related.

Thanks for the help

-Doug

2
General Mach Discussion / Re: Only getting 85% of kernel speed in mach 3
« on: November 04, 2011, 10:57:22 PM »
I tend to agree it's computer related. I would also bet that depending on the file your running it may drop even lower. 
My Dell's did the same and would drop down to as bad as say 14000 or so.
Great computer for everything except CNC, for the ten or so we tested they just plain outright ....sucked!
RICH

Thanks for that input on the Dell cpu's. 

In that case, it might be worth the cost in less frustration to just get on Craigslist and get a new box.

Any brand you recommend in particular (seems like a lot of Dells out there) - and what minimum specs should I get if I want to run "nicely". 

That's a bummer - bought a new PC for the house a while back, and saved this one specifically for this task....oh well.

Thanks,

Doug

3
General Mach Discussion / Re: Only getting 85% of kernel speed in mach 3
« on: November 04, 2011, 01:40:09 PM »
is your slow jog rate set lower than 100%

Yeah - everything at 100%.  Something else is going on with the drivers...if the diagnostics were reading 25kHz like they should be I would be looking for something tuned down.

Thanks

-Doug

4
General Mach Discussion / Only getting 85% of kernel speed in mach 3
« on: November 04, 2011, 11:26:31 AM »
Hi everyone. 

Having this problem - have posted on CNCzone, but don't know if it's kosher to link to a different forum, so I won't unless someone asks for it.  Has a similar title as this one.

Anyway, running a Dell E510 Windows XP Pro, 2.92Ghz, 4Gb ram.  Clean install windows.  Nothing but OS and Mach.

I can get everything running, and everything runs great in driver test - all the way up past 60kHz. 

I leave it set on 25kHz for now (for some reason if I up the kernel, I have to LOWER my speed in motor tuning or my motors lock up...that's a different topic)

So...for example, if I tune to max rapid at 100IPM when I jog I get 85 IPM.  If I MDI a feed of 10 IPM, I get 8.5 IPM.

Very werid.  When I look at the diagnostics, is shows I'm getting mid 21,000's kernel, not 25kHz. (21250 is 85% of 25000).  It is pretty stable there.

I have tried converting PC to 'Standard PC' from a UniProcessor ACPI via a suggestion from Gerry at CNCZone.  End result after some difficulty was still 21kHz, but it wasn't stable (if i just bumped my mouse it would drop to 100-300 Hz, then back up).

He said I must have a driver conflict somewhere.  Any thoughts on how to fix this?

Thanks,

Doug

5
Hi all.  I'm Doug.

Got a mill about 9 months ago and now converting to NC.  Using Mach so figured I should learn more about it!
Having a "weird" problem with Kernel speed but that will be posted elsewhere...

Background:  Work at very large Aerospace/Defense company.  Was an NC programmer using UGS NX, now in a different area.  May move back to NC 'cause I liked it way more than my current job.

Thanks


-Doug

Pages: 1