Messages

2011

General Mach Discussion / Re: minimum computor requirements

« on: June 25, 2007, 12:15:30 PM »

A 1.2Gh with a good graphics card can do better than a 4.2Gh with built in graphics.  Its the overall spec not just the processor, 512Mb is plenty if you are only going to run Mach3.

2012

General Mach Discussion / Re: backlash

« on: June 25, 2007, 11:49:08 AM »

Are we talking Lathe or Mill?

Graham.

2013

General Mach Discussion / Re: motor tuning problems

« on: June 25, 2007, 11:43:44 AM »

It sounds as if you have the jog rates set below 100%.

If you press the TAB key you can set the jog rates on the fly out to 100% and then retune your motors.

Graham.

2014

General Mach Discussion / Re: CV mode tuning

« on: June 25, 2007, 11:34:38 AM »

CV mode is the blending of lines and arcs into a polly line, the smoother the original line the more accurate the CV line, sudden changes in direction result in large blend rads, thus the original shape is distorted.

The slower the feed rate the better the match to the original path (more time to change direction).

Under general config several CV config options can be set, these can be set the cause the axis to slow before a corner and reduce rounding.

Graham.

2015

General Mach Discussion / Re: Computer OS to run Mach 3

« on: June 25, 2007, 11:12:06 AM »

Laptops can do funny things with the processor speed to save battery life, also they tend to run the parralel port at 3.3 volt against 5 volt on desktops.

The graphics cards are poor too, causing very slow and unpredictable results.

Graham.

2016

General Mach Discussion / Re: Computer OS to run Mach 3

« on: June 25, 2007, 09:06:13 AM »

2000 is fine, it could be the laptops that cause you problems.

Graham.

2017

General Mach Discussion / Re: CV mode tuning

« on: June 25, 2007, 08:30:06 AM »

Unless you are turning staircase spindles I would turn CV mode off for turning.  Exact stop mode is more accurate for forming chamfers and radii on turned parts.

Graham.

2018

General Mach Discussion / Re: cut circle wizard by Kiran problem

« on: June 25, 2007, 05:12:50 AM »

I have had a look at the wizard and all looks fine to me this is what I got from it based on what you have both said.

Graham.

The code

F400
G00 Z10
G00 X23.9 Y0
G00 Z1
G01 Z-0.5 F50
G02 X23.9 Y0 I-23.9 J0 F400
G01 Z-0.9 F50
G02 X23.9 Y0 I-23.9 J0 F400
G00 Z10
G00 X24 Y0
G01 Z0 F400
G01 Z-1 F50
G03 X24 Y0 I-24 J0 F400
G00 Z10
G00 X0 Y0
M30

2019

General Mach Discussion / Re: about Z depth

« on: June 24, 2007, 08:09:51 PM »

oh, that changes things a lot.

It could be done with the probe, but its not that easy, its getting the values into the g-code that is a pain.

The best way is to write a VB script to generate the new program.  Not for the faint hearted.

Post a picture of what you are talking about.

Graham.

2020

General Mach Discussion / Re: about Z depth

« on: June 24, 2007, 07:48:24 PM »

Why not adjust your machine so it cuts flat and square.

Or

As a last resort machine the table with the machine.

Or

If its the work piece that is not flat then pack it and clock it flat with a DTI.

Graham.