Messages

1101

General Mach Discussion / Re: Coordinate Shift When Thread Milling

« on: December 09, 2010, 03:10:49 AM »

What are the values in the G54 fixture offset?

Graham

1102

General Mach Discussion / Re: Need help to generate a sine wave

« on: December 08, 2010, 07:56:58 AM »

The best way is to write it as VB macro and save it as an M code so you can call it from g-code.

Search the forum there are many examples of creating macros.

Graham

1103

G-Code, CAD, and CAM discussions / Re: Newbie to CNC, please help

« on: December 07, 2010, 10:29:27 AM »

You need to turn off splines in the Corel draw options within the DXF output.

The demo version of lazycam had a g-code limit of 50 lines and mach3 a limit of 500 lines.

Graham

1104

G-Code, CAD, and CAM discussions / Re: Newbie to CNC, please help

« on: December 06, 2010, 09:57:29 AM »

Are you using a licensed version of Mach3?

Turn of splines in corel draw.

Graham
 

1105

General Mach Discussion / Re: Mach 3 turn constant sfm?

« on: December 02, 2010, 04:41:37 PM »

G21 G40 (metric and clear any comp.)
T0101 (select tool 1 offset 1)
G00 X100. Z10. (rapid to start point)
G48 S1000 (set max spindle speed)
G96 S50 M3 (select CSS)
G95 (set to feed/rev)
G01 X10. F.2 (feed to 10mm dia)
X100. (feed back to start point)
G97 S1000 M3 (set to rpm mode)
M30 (all done)

If you watch the speed it should range from 159 to 1591 rpm, this will not happen as the speed is capped at 1000 rpm, the G48 line can be changed to allow maximum if it is safe to do so.

Graham

1106

General Mach Discussion / Re: What would make the size of holes change during cutting????

« on: December 02, 2010, 08:58:06 AM »

Could it be something as daft as a build up of dust in the belts?

Graham

1107

G-Code, CAD, and CAM discussions / Re: g2 stops program when running

« on: November 29, 2010, 09:23:16 AM »

What is the P3 and P1 for in the G02/3 lines on your old control, I don't think Mach3 will like them for a start.

Graham

1108

G-Code, CAD, and CAM discussions / Re: G code help with missed steps

« on: November 28, 2010, 06:21:16 AM »

It would be better to fix the lost steps problem as lost steps are still lost in absolute mode.

Graham

1109

General Mach Discussion / Re: Scale X-1 Problem

« on: November 28, 2010, 05:17:12 AM »

Great news Mike,  I have passed on the remaining issue to the development team.

Graham

1110

General Mach Discussion / Re: Scale X-1 Problem

« on: November 26, 2010, 04:26:44 PM »

G19G3X388.331Y110.905Z4.25J-15.698F2500.0

You seem to be missing the K from the line.

Graham