Messages

1751

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

« on: February 03, 2017, 06:52:49 AM »

So you have a 2:1 reduction geared X and Y axis (20t on motor and 40t on shaft) but what is the shaft ?

Please refer to Sections 5.4 / 5.5... of the Mach3 manual which details steps per unit calculation.

Tweakie.

1752

General Mach Discussion / Re: Displacement of work area

« on: February 03, 2017, 06:02:01 AM »

Are the motors stalling at any time (making a whining sound) ?

Perhaps check your machines mechanicals for slipping coupling, loose grubscrew, binding of axis or screws, etc.

Tweakie.

1753

General Mach Discussion / Re: New parallel port card question

« on: February 03, 2017, 03:12:33 AM »

If I input 0xC400 Mach3 doesn't like it.

From the info you have given that is the correct address to enter.


Tweakie.

1754

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.

1755

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.

1756

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/

1757

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.

1758

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.

1759

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.

1760

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.