Messages

1451

G-Code, CAD, and CAM discussions / Re: G02 & G03 - Problem

« on: January 26, 2009, 06:32:39 PM »

Mach3 can not do 3D G02/03 moves, you must use G01 segments.  You may also need to set IJ mode to absolute.

Graham

1452

General Mach Discussion / Re: Mach Workshop at Cabin Fever Expo

« on: January 19, 2009, 06:00:09 PM »

Here are some more pictures of the show

1453

General Mach Discussion / Re: Another Tool Diameter/Wear Question

« on: January 13, 2009, 03:27:05 PM »

G10 L1  is the command that tells Mach3 the data in P and X is related to the tool offset table

Pn is the offset number,  to change tool offset 1 use P1 tool offset 2 use P2 etc.

Xn.nnn is the value you wish to increment/decrement by e.g. X0.001 or X-0.001

Graham

1454

General Mach Discussion / Re: Setting Z zero with Tool# other than Tool zero

« on: January 12, 2009, 02:22:49 PM »

When you set all your tool offsets they were set relative to your datum tool, if you use T6 it has an offset in the tool table and it is applied when you call it, when you set your z datum with that tool the offset is ignored and then when you run your code the offset is applied.

G49 will cancel all offsets if this is in your program, then there must be no G43's in the code.

Graham

1455

General Mach Discussion / Re: Another Tool Diameter/Wear Question

« on: January 12, 2009, 01:37:31 PM »

You can update the tool offset on the fly with a G10 command :-

G91                       (set incremental mode)
G10 L1 P1 X0.001   (G10 L1 set tool offset, P1 is the tool offset number, X0.001 is the amount to adjust the offset by)
G90                       (set back to absolute mode)

Put this at the end of your code and the offset will be incremented ready for the next run.

Graham

1456

General Mach Discussion / Re: Setting Z zero with Tool# other than Tool zero

« on: January 12, 2009, 01:28:00 PM »

Set an offset in your tool table to Z zero, say offset 200, then in your g-code have a line G43 H200.

Graham

1457

General Mach Discussion / Re: Mech Home before Go To

« on: January 11, 2009, 05:25:53 AM »

I understand what you are wanting to do, but it can be very dangerous to have the machine move at start up on its own.

It would be much better to do what Overloaded suggested but place his code in the 'Cycle Start' button or do as I suggested.

Ether way it will force you to home the machine.

Better safe than sorry.

As for making it idiot proof, it is becoming mandatory due to H&S and the fact we are breading idiots, no common sense any more just compensation claims, end of rant 

Graham

1458

General Mach Discussion / Re: Mech Home before Go To

« on: January 10, 2009, 05:03:28 PM »

you could put this at the start of each program you have :-

G28.1 Z0
G28.1 X0 Y0

this will search the home position before it will cut anything.

Graham

1459

General Mach Discussion / Re: Does Mach calculate accel/velocity rates for G53 any different than G00

« on: January 10, 2009, 12:09:29 PM »

Try changing the G53 lines to :-

G91 G28 Z0
G28 X0 Y0

and see if that is smooth.

Graham

1460

General Mach Discussion / Re: Software to convert Dxf to Gcode, aka CAM. Recommendations wanted

« on: January 09, 2009, 03:09:44 AM »

You get LazyCAM lite with Mach3, if you want the full version its $75.00

Graham