Mach 3 Driver test results & improvement

[EddyCurrent]

This was another solution, cheaper.
UC100 CNC machine motion controller | eBay

Have you read this ?
http://www.mycncuk.com/forums/comput...uirements.html

I know you tried stopping windows services but there are some great guides here for bare bones tweaking.
» Service Configurations

I've never tried running drivertest before but I just had a go on the Dell Dimension C521 I'm using and unlike your screenshot the 'trace' looked very clean.

I'm wondering if there is EMC interference from your spindle VFD ? is there an internal filter ?

[JAZZCNC]

I wouldn't waste any time on the PC to get it better has it's the PP that's the bottle neck and other than replacing this then your stuffed.

The PP is pain in the arse and the difference between External motion control card is night and day. Everything improves, speed, smoothness, reliability.



Now if your stuck and can't work or just want to see the difference then I can lend you a USB Smoother stepper to try.! . . . .But first what are you trying to improve.? Or should say what is Mach not doing that you would like it to do.?


If your chasing speed then often it's not Mach or the Kernal speed that's restricting the machine it's something else like running drives/motors with Low voltage or high pitch screws.
Give us some idea Why or what your trying to achieve and the Spec and setup of the machine.


EDIT: LEE can't insert blank lines all the text is bunching together.? . . . Is something wrong.

[EddyCurrent]

EDIT: LEE can't insert blank lines all the text is bunching together.? . . . Is something wrong.

There's been a few subtle changes to the forum just now

[JAZZCNC]

There's been a few subtle changes to the forum just now

Like what.?

[EddyCurrent]

e.g.
The little green dot next to your handle that shows if you are on-line
'Thanks' and 'thanked' numbers

[JAZZCNC]

e.g.
The little green dot next to your handle that shows if you are on-line
'Thanks' and 'thanked' numbers

Ah ah ye it says I'm a "Jewel in the Rough" . . . . . Should say "Rough Arsed B@#%rd". . .Lol

[EddyCurrent]

They were already there before.

It says I'm on a "distinguished road" but I've just looked outside it's more like a farm track.

[Joe]

Thanks for the reply's

I think I am set on getting a smooth stepper, they are so much better than a PP your right

but I was just wondering if there was any simple fixes that would improve my PC in the mean time but I think I am at the end of the road with this one

Jazz thank you for this kind offer, I am just trying to get things ready for a new machine I am building so there is no rush at the moment but thanks a lot.

A little bit about the machine: Rm1605 ball screws with direct drive

Wantai DQ890MA stepper drives running at 72V

Nema 23 motors

I am basically trying to get the best speed and accuracy I can from this configuration so I think a smooth stepper will be a good addition

Joe

[JAZZCNC]

I am basically trying to get the best speed and accuracy I can from this configuration so I think a smooth stepper will be a good addition

Joe

Ok Well can I just say that don't waste time trying to chase speed too much has it's not really necessary for most work you'll do with a 5mm pitch screw.
With that setup of 72V and half decent drives at a sensible micro stepping then Mach at 35Khz will give all the speed you require for most work within the 5mm pitch range of working. Really if your wanting higher feeds than this you have the wrong pitch screw.

Accuracy comes more from attention to detail and build quality than it does components, whether that be mechanical or electrical. Repeatability and smoothness comes more from Components.

The SS does help with Smoothness and reliability but with a 5mm pitch then any speed gain would be wasted has the screw will become the limiting factor.

[m_c]

There's been a few subtle changes to the forum just now

The lack of blank lines has been an issue for a while, but only with IE. There's an issue with the site's CSS, but Lee's done nothing about it.