Help please. Dip switches and mach 3 settings

[Radu_Andrei]

Hi again.
In the end I tried all drivers and nothing worked, and mainly because the device manager does not detect any network adapter under windows xp installation. checked the bios and it is enabled in there.
Anyway, as the Lan driver can wait, I.ve installed mach3, did the setup, and tested the cnc. Same problem. Jerky steppers. Changed the kernel speed to 35000 and no difference.
Ran the Drivertest in mach 3 folder and it.s pulsing to slow, and that time line is all over the place.
Changed the computer driver in device manager from ACPI to Standard Pc and now the pc would keep restarting after the bios option. I could reintall everything and probably would work just fine for normal use, but not for cnc. At least I.ve tested the windows xp, and no difference compared to win7, in my case.

I.ve spoke with a friend that has a computer shop and he could find the suppliers for various old motherboards. This one that dazp1976 mentioned, GIGABYTE GA-G31M-S2L, 775, DDR2, PCI Express , goes here for apx 25-30Euro, and then an Intel celeron procesor, single or dual core, 2-3 euro a piece, might need the fan and everything but my friend will get and assamble all that. Also have the option of buying online from other people some old pcs, but the options are limited.

My question is what desktop pcs do you use guys? Rob, Clive, John?

[Clive S]

Personally I don't think this is pc related.

Can we have a refresh where you are at. ie a new vid showing the problem?

What PS are you using for the drives? Voltage?

What setting have you set the drives to ?

what setting do you now have in Mach?

[cropwell]

My CNC computer is a Pentium4 based processor 2.4GHz with 1 Gb RAM It is configured ACPI. I run XP and have taken out all unnecessary Windows options like Games etc.

Looking at your screen shots, you would be best to sort out the yellow exclamation on the ECP driver. I tend to agree with Clive, the major problem lies elsewhere.

All of the Yellow Question Marks can wait, unless you need networking for something else. I have removed the Internet gateway so that I can network my CNC machine for access to files in my NAS box, but remain disconnected from hackers and malware.

[Radu_Andrei]

Dear Clive.
There isn.t any new problem other than in this video https://www.youtube.com/watch?v=KWlVfyy1hFU. This is the problem I have for over a month ago. I could not fix this.
I.ve changed the enclosure and rewired everything and in the end I.ve got the same problem. Stalling, jerking, strange noise etc.
I use the power supplies included in the kit, for 1200oz nema 34 steppers, in this case S-350-60, 60V, 5.85A, DC Output.
The driver settings are as stated in the first post, ..Dip switches set as OFF OFF ON ON OFF ON ON OFF , which sets the thing to 4.9A Peak, 3.5A RMS, Full Current from SW4 (i don,t really know how to set this), and 2000 pulse/rev. The next current setting is 5.7A peak... And I changed this to 800 rev/min and 1600 rev/min in order to see how it goes.
Settings in Mach3, there are plenty. Could you please be more specific.

Dear Rob,
The yellow exclamation did not exist with the previous installation of windows7. These are all new things the win xp experience.

I.m quite aware by now that you are qualified and smart guys, and know your craft, and I don.t mean any disrespect, but this ..Pulsing to slow.. does not raise any concern to anyone?

[cropwell]

In the video, it looks and sounds like the stepper is stalling,In the Motor Tuning, try dropping the velocity and acceleration to 50% of what you have got it set at. If this solves the problem put it up to 75% of the original value. Then go up until it stalls and back off to where it doesn't stall.

If that doesn't help you then we have to think deeper.

Sw4 puts it to half current when idle and is normally set on.

[Clive S]

I agree with Rob on this. I think you are using Nema34 motors so your voltage will not be high enough to drive them fast.

The driver settings are as stated in the first post, ..Dip switches set as OFF OFF ON ON OFF ON ON OFF

It would be helpful to say what drives they are without having to troll back through all the posts.

What micro setting do you have now?

[Radu_Andrei]

I.ve tried lots of settings in motor tunning, and it worked fine at any speed, and then it did not, again at any speed. When this stalling happens, it does not matter the speed. The z axis for example was set at 100 mm/sec, which is dead slow, and it did the same problems. I.ve tried all speeds up till 3000 mm/sec, even a bit more for x axis, and it had times when it worked smooth, and then the steppers changed their noise, and either behaved like after minute 1.05 in video, when they just stop, or kept running in a jerky manner and made the ballscrew vibrate.
SW4 is off at the moment.




The supply has like a potentiometer, on the left side of the the DC output terminals, which says +V ADJ. I did not touch that, but reading with a multimeter, I get exacly 60V.
The drivers are DQ860MA, 24-80V, set at the 4.9A Peak, 3.5A RMS option at the moment. The steppers have written on them 5.6A(U). The next driver setting is at 5.7A Peak. They go up to 7.8A Peak.

As for steps, I.ve tried 800.1600 and 2000 rev/min. It either function ok with any setting or it does not work, no matter the steps.

The cnc worked smooth on and off, and a driver or source problem would be persistent and require fixing right away. It would not allow the cnc to work sometimes. That.s just my thought.

Could you please tell me why you find ..pulsing to slow.. thing to be irrelevant? What is it, or what is the cause of it?