Messages

1281

Third party software and hardware support forums. / Re: Problems getting motor motion on initial Mach3 setup

« on: December 26, 2009, 06:19:04 AM »

Have you got the C10 board enabled?

Graham

1282

VB and the development of wizards / Re: PLease Help with code

« on: December 26, 2009, 06:09:26 AM »

If you look in Config..Homing/Limits you can specify a home offset for each axis there. You can not change it on the fly but if the offset is static it will work, I use it for my tool changer.

Graham

1283

General Mach Discussion / Re: How can a CNC machine save time?

« on: December 26, 2009, 05:09:14 AM »

How can a CNC machine save time?
Imagine doing a bunch of arcs and radius , all on a manual machine with a turntable . Lots of setups.
But , that's all we had , and no DRO.  a pad of paper and a pencil , and no Calculater. 
Yes , I guess  I am old. 

You think you had it bad.............

http://www.youtube.com/watch?v=Xe1a1wHxTyo

1284

General Mach Discussion / Re: CABIN FEVER EXPO - 2010

« on: December 26, 2009, 04:57:18 AM »

I was talking to Brian the other day and I have decided to skip the Cabin Fever show and attend the Digital Machinist one. If like me its 3500 mile trip the latter sounds the better event.

This is just my take on things, no real pressure from anybody.

Graham

.................can the thumb screws come off now Brian? 

1285

General Mach Discussion / Re: Engraving around outside of a tube

« on: December 21, 2009, 10:47:32 AM »

In most CAM systems you can output arcs as line segments then you have no G02/3's.

A better option is to do things right and get your CAM system to wrap/project the image over your cylinder, then output the code as X and A axis code.

Graham

1286

G-Code, CAD, and CAM discussions / Re: Multiple Parts

« on: December 21, 2009, 10:36:59 AM »

You need to use G52 Xx Yy this is a local datum and is used like this :-

g54 g00 g90 g....... (initial start lines)
g52 x20. y20. (move x 20mm and y 20mm)
m98 p1 (call a sub or any lines of code)
g52 x0 y0 (cancel the shift)
g52 x40. y20. (move to next shift pos)
m98 p1
g52 x0 y0
etc.......

Graham

1287

G-Code, CAD, and CAM discussions / Re: Mill brake when micro machining PCB boards

« on: December 21, 2009, 10:32:04 AM »

Are you using HSS or Carbide mills, PCB board is very abrasive and needs very hard cutting tools.

Graham

1288

General Mach Discussion / Re: Probing with 032 latest lockdown

« on: December 21, 2009, 10:29:07 AM »

OK, no problem 

1289

General Mach Discussion / Re: Probing with 032 latest lockdown

« on: December 19, 2009, 09:41:20 PM »

If you do this what happens :-

Start at x4 y4.

G91
G31 X2. F15.

Graham

1290

General Mach Discussion / Re: Probing with 032 latest lockdown

« on: December 19, 2009, 11:08:38 AM »

The problem I am currently having is that the Z follows the G31 properly but the X and Y go only in one direction regardless of how I program it.

Any thoughts?

Are you using fixture offsets or G53?

Are you working in G90 or G91 are you saying that minus values move plus or what?

Graham