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Author Topic: big problem mach3 cnc  (Read 8103 times)

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Offline Hood

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Re: big problem mach3 cnc
« Reply #10 on: April 14, 2008, 06:41:06 PM »
Have you checked that your port is putting out 5v, maybe its just putting out 3V.
 You say its working on another computer, is that using the same xml?
Hood
Re: big problem mach3 cnc
« Reply #11 on: April 14, 2008, 06:52:53 PM »
The port puts out 5V and fluctuates to .15V on direction change. I did not copy the .XML file from the working computer, but all the setting on the new computer have been checked and re-checked. All issues with the components down stream from the parallel port have been eliminated, including the parallel cable.

Online Tweakie.CNC

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Re: big problem mach3 cnc
« Reply #12 on: April 15, 2008, 04:45:33 AM »
Just a thought,
 
Here is a clip taken from the SideStep setup instructions:-

Control Software Setup

The SideStep is negative logic. The STEP, DIRECTION, and ENABLE lines should be inverted in your software. Please contact us if you need help configuring your software.
Success consists of going from failure to failure without loss of enthusiasm.  Winston Churchill.
Re: big problem mach3 cnc
« Reply #13 on: April 15, 2008, 12:37:11 PM »
I have now tried Mach on two IBMs and one Compaq with the same result. The steppers only whine without movement.

Offline Whacko

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Re: big problem mach3 cnc
« Reply #14 on: April 15, 2008, 03:38:13 PM »
Could it be that your accel parameter is too steep? If this parameter is not set correctly, the armature cannot spin up fast enough and will end up just buzzing with no rotational movement.

Whacko
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Re: big problem mach3 cnc
« Reply #15 on: April 15, 2008, 04:29:54 PM »
I've tried that in addition to every other possible setting in motor tuning and ports and pins.

Offline Hood

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Re: big problem mach3 cnc
« Reply #16 on: April 15, 2008, 06:17:01 PM »
Have you tried the xml from the computer you say it works on?

Hood
Re: big problem mach3 cnc
« Reply #17 on: April 17, 2008, 01:02:45 PM »
Problem fixed and I still have some hair left. WOOHOO.

Offline Hood

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Re: big problem mach3 cnc
« Reply #18 on: April 17, 2008, 02:37:14 PM »
how did you fix it, it may help others if you give this info.
Hood
Re: big problem mach3 cnc
« Reply #19 on: April 17, 2008, 03:27:42 PM »
I started at the beginning as follows:

1.   Uninstalled Mach.
2.   Tested each Gecko 201 drive in a control box that is known to work.
3.   Reinstalled Mach without .xml.
4.   Wired one drive directly to the p port.
5.   Set up ports and pins.
6.   Set up motor tuning with 5us step pulse. The drive would not work with anything less.
7.   Connected motor to drive.
8.   Once the motor was working correctly, I installed the BOB between the computer and drive.
9.   Once the above combination was working correctly, I installed all the components in the control box and wired the remaining motors.
10.   I will wire the remaining limit switch and touch probe wiring next.
« Last Edit: April 17, 2008, 06:14:50 PM by tsalaf »