It was this thread that made me question it:

http://www.cnczone.com/forums/haas_mills/22872-g92.html

I was also confused by the tutorial for CNC Simulator

http://cncsimulator.com/blog/?page_id=102

This starts a program 

G92 X30 Y30 Z20
T1 M6
G0 X15 Y15 Z2

Assuming the simulator starts at machine X0 Y0 X0

I think this should take you to machine X-15 Y-15 Z-18

Unless I've misunderstood G92 I think the simulator is wrong.

Mike







On 31 May 2012, at 20:37, Viesturs Lācis <viesturs.la...@gmail.com> wrote:

> Little OT, regarding homepage: I got curious to find out, what exactly
> does G92 do and went to search the web.
> I found out that this page is not accessible:
> http://linuxcnc.org/docs/html/gcode_main.html
> 
> Is the link not correct or is there something wrong?
> 
> Viesturs
> 
> 2012/5/31 John Thornton <bjt...@gmail.com>:
>> Dunno where you read that but I use G92 for every cutting operation on
>> my plasma table... making sure to clear them when done. I jog to the
>> start point and that becomes XY 0 for the duration of the cut.
>> 
>> John
>> 
>> On 5/31/2012 12:29 PM, mjb1...@gmail.com wrote:
>>> I've written a subroutine that starts
>>> 
>>> G92 X0 Y0
>>> 
>>> performs a task at the current location and ends
>>> 
>>> G92.2
>>> 
>>> I can the go to a locaction and call the subroutine.
>>> 
>>> This all works as expected, but I've read that using G92 is not a good 
>>> idea.  Is there a better way?
>>> 
>>> Mike
>>> 
>>> 
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