Messages

1

Mach3 under Vista / Re: Uneven Spindle pulsing during Axis movement

« on: September 11, 2013, 02:35:29 AM »

HI All,

I managed to track the root cause for my problem; brush/spindle speed controller failure.
These elements formed strong EMI which affected to break out board to jam occasionally.
Now after some extra protection I am driving the system with 250kHz pulsing speed, good accuracy, acceleration and speed.
damn it took time to find that sparking error source.

2

Mach3 under Vista / Re: Uneven Spindle pulsing during Axis movement

« on: December 11, 2011, 06:40:46 AM »

Hi Azrael,

Had same issue with axis movement. Had to lower down the pulsing engine to 25000Hz to get it stable and work done. Speed or accuracy will be poorer but will work.
I am studying the issue why this happens. Pulsing engine does not work properly varying the frequenzy all the time.
Doupts also about the interface board, due changing the computer & operating system the problem is still there. (win7 not tuned up for the system)
My system is dedicated and tuned to Mach3 and disconnected to network to avoid unnessessary updates.
Last week I had to revitalize my windowXP due some hard disk failures and propably some tunings were resetted?
damn.. i miss those proper cutting speeds.

3

General Mach Discussion / Re: Home Limit Switch problems Mach3 with HobbyCNC Pro

« on: October 29, 2007, 12:03:29 PM »

Hi Stemasoft,
I Have identical case with 3D-step card. I have shielded lines for stepper motors too; grounded at both ends. 3D-step card has those capasitors already. One interesting notice was that by deactivating - limit or home (with all axis) by sw the problem was gone. Card do not deliver that disturbing signal I believe. I tried to increase debounce to 0.7s but did not help. One idea is that my computer is bit too slow 900MHz and that causes timing issues with mach3. I have plan to make some oscilloscope measurements in near future to ensure that drivercard led's are not too fast to my eyes.