Messages

7181

General Mach Discussion / Re: Mach 3 Upgrade issue - for a frustrated Aussie

« on: March 06, 2011, 03:18:58 AM »

Lance,

All the VFD's I have used have had separate inputs for CW and CCW rotation and these are connected to separate output pins from Mach, one mapped to M3 and one to M4. This then lets the GCode specify CW or CCW operation with the M3/M4 commands.

Tweakie.

7182

General Mach Discussion / Re: Possible G2, G3 bug

« on: March 06, 2011, 03:03:21 AM »

Phil,

I think we have all been caught out by this one sometime or another   

Don't spend too long with the manuals either, life is far too short to read all the manuals 

Tweakie

7183

General Mach Discussion / Re: Steppers and mach out of sync

« on: March 06, 2011, 03:00:24 AM »

to cut a long story short my x axis which is directly driven by a leadscrew will not consistently match up with the DRO readings in mach 3.

For this statement to be true the step pulses that Mach sends out are not being translated correctly by the stepper motor.

Have you thoroughly checked all the obvious mechanicals such as slipping coupling joining leadscrew to motor, tight or binding spots on the slides or leadscrew, anything loose etc etc ?

Tweakie.

7184

General Mach Discussion / Re: AutoZero Plate for Z Axis

« on: March 05, 2011, 12:05:32 PM »

Nicolas,

I am sure you will figure out the way to do it.

I'm off home now, I will check on your progress on Monday.

Tweakie.

7185

Show"N"Tell ( Your Machines) / Re: Thrown together coil winder ;)

« on: March 05, 2011, 11:47:21 AM »

Now that's what I call Scottish innovation. 

Tweakie.

7186

General Mach Discussion / Re: AutoZero Plate for Z Axis

« on: March 05, 2011, 11:42:35 AM »

Nicolas,

Just to be sure I have altered your diagram to reflect the same series connection of the switches although I am sure that you know what to do now anyway.

Tweakie.

7187

General Mach Discussion / Re: AutoZero Plate for Z Axis

« on: March 05, 2011, 11:30:34 AM »

No, good try but not right. See diagram.

Tweakie.

7188

General Mach Discussion / Re: Possible G2, G3 bug

« on: March 05, 2011, 10:52:10 AM »

Try changing the IJ Mode setting on the General Logic Configuration page and see if this cures it.

Tweakie.

7189

General Mach Discussion / Re: AutoZero Plate for Z Axis

« on: March 05, 2011, 10:42:23 AM »

You have incorrectly connected the two sets of limit switches in parallel.

Connect them in series.

GND-----switch----switch----switch----switch----PIN 11

Tweakie.

7190

General Mach Discussion / Re: axis problems

« on: March 05, 2011, 06:19:34 AM »

From reading all your postings on this it appears you have Mach set up in metric units not imperial.
May be a good idea to save your .xml and settings so you can always go back but start afresh re-install Mach and set it up in imperial units right from the start.

Tweakie.