Messages

2831

General Mach Discussion / Re: Displacement of work area

« on: February 03, 2017, 01:25:06 AM »

Try reducing the X axis and Y axis Velocity and Acceleration in Motor Tuning by 50% and save the changes for each axis.

Is the machine still producing the same error ?

Tweakie.

2832

G-Code, CAD, and CAM discussions / Re: G31 probing - can Z travel be limited

« on: February 02, 2017, 05:44:30 AM »

No, I don't think you can.
Because the axis decelerates to a stop after the touching point it overruns and the exact point of touch is obtained from reading Var(2002) and I am not aware of any way to do this within Gcode - thus the use of a macro.

Tweakie.

2833

General Mach Discussion / Re: Mach 3 and MSD880 microstep driver settings

« on: February 02, 2017, 03:33:36 AM »

There is little point in setting your microsteps as high as 3200.

My recommendation would be that if you are Metric then use 1/10th microstepping (2000) or if you are Imperial use 1/8th microstepping (1600).

If you are using the Parallel Port then select that (do not use Max NC Mode), also set Kernel Speed to 25000Hz. If you are not using the parallel port but using a motion controller then which type ?

For distance calibration, initially, make sure you are setting-up Mach3 in the Units (Inch/mm) you intend to use (Config. / Set Native Units).
In Members documents there is a calculator for finding Steps per Unit and also a math's example.
http://www.machsupport.com/forum/index.php/topic,16315.0.html
http://www.machsupport.com/forum/index.php/topic,12512.0.html
There is also an automatic Axis Calibration feature on the Mach3 (Alt-6) Settings page.

Hope this helps,

Tweakie.

The Mach3 manual can be found here; http://www.machsupport.com/help-learning/product-manuals/

2834

G-Code, CAD, and CAM discussions / Re: G31 probing - can Z travel be limited

« on: February 02, 2017, 01:58:56 AM »

I use a move such as...

DoOemButton (1010)
Code “G90 G31 Z -20 F”

using mm units this will stop my Z axis after -20 mm of travel if Probe has not been detected (remembering to reset Moves to Incremental (G91) if necessary).

Tweakie.

2835

General Mach Discussion / Re: Mill Problems

« on: February 02, 2017, 01:27:40 AM »

Try reducing the Velocity and Acceleration for the Z axis in Motor Tuning by 50% then save the changes.

Does this make any difference ?

Tweakie.

2836

General Mach Discussion / Re: Problems Getting Movement

« on: February 02, 2017, 01:24:19 AM »

I'm beginning to think that my E-Stop is wired incorrectly for starters. Its wired Diagonally across the Inputs at the moment.

Your EStop should be a normally closed contact and wired between Pin 10 and GND (Pin 12).

Tweakie.

2837

Newfangled Solutions Mach3 Wizards / Re: Problems with calibrating Z axis

« on: February 01, 2017, 01:44:41 AM »

The G90/G91 relates to Absolute/Incremental movement and the appropriate method is usually specified within the Gcode file.

The Mach3 manual has more detail and can be downloaded from here http://www.machsupport.com/help-learning/product-manuals/

Tweakie.

2838

General Mach Discussion / Re: Mach 3 problem, program starts in the middle

« on: February 01, 2017, 01:38:09 AM »

Unfortunately your zip file did not contain the Gcode so I was unable to replicate the problem here.

Do you have a licensed version of Mach3 or are you running in Demo Mode ?

Tweakie.

2839

General Mach Discussion / Re: G540 Steps Per

« on: January 31, 2017, 07:44:33 AM »

Sound advise Gerry but beginners, newcomers and the inexperienced, etc.  would perhaps use (and trust) a Gecko provided .xml.
The Gecko documentation does not make it absolutely clear that Steps per Unit need to be altered according to the machine nor do they make it clear that the G540 has fixed 1/10th microstepping (which is essential information for calculating the steps per for any machine).

The Gecko products and documentation are second to none but improvements could be made to the documentation as Kolas has pointed out.

Tweakie.

2840

General Mach Discussion / Re: Mach3 lathe spindle problem

« on: January 31, 2017, 04:45:09 AM »

Hi Yap,

Welcome to the forum. For a first post it was pretty good but not quite in the right place.    (I have moved it to have it's own topic).

Unless your post relates to one of the existing sections it is probably best to post in 'General Mach Discussion' using the 'New Topic' button (towards top of page).

I am sure someone will be along shortly to suggest what you need to do to get your spindle running correctly.

Tweakie.