CAD CAM EDM DRO - Yahoo Group Archive

Re: G92 was Re: another EMC Glitch?

Posted by Keith Rumley
on 2002-07-15 12:02:17 UTC
Ray, Les, etc,

I found the G92 set/reset method in my BDI2.04 setup odd, so I stopped
using G92 altogether. Instead, G10 suffices, and coordinates are WYSIWYG. It
has been reliably working for the past 6 mo.+

How I use it: (example for G54 space)

MDI: G10 L2 P1 x0 y0 z0

EMC then displays the offset in relation to absolute 0,0,0.
If it doesn't, I'm not in 'P1'(G54) and have just reset some other
coordinate system :)

Give the command again but insert those offsets...(using arrow keys to
backspace and re-use command....)

MDI: G10 L2 P1 x-12.2456 y-1.5678 z1.450
Display/Coordinate system is now zero-ed.

P1 through P9 correspond to coordinate systems G54-G59.3

G92 offset affects all coordinate systems, and G10 doesn't change that.
Hence my G92
.var file offsets are set to 0 and left there.

When starting up the machine, I hit F6 to reset after running the initial
home routine (For some reason the ini default G-codes aren't read at first),
then switch out of G54 and back in again to get my axis presets back.
Switching in and out of the coordinate system is what gets EMC to check my
.var file again..

- Keith

(It is possible to figure out from the machine coordinates what to enter
into the G10 command the first time, but in practice it's faster this other
way)

Discussion Thread

Ray Henry 2002-07-14 23:00:20 UTC Re: G92 was Re: another EMC Glitch? Keith Rumley 2002-07-15 12:02:17 UTC Re: G92 was Re: another EMC Glitch? Ray Henry 2002-07-15 19:38:55 UTC Re: Re: G92 was Re: another EMC Glitch? Jon Elson 2002-07-15 23:03:26 UTC Re: [CAD_CAM_EDM_DRO] Re: G92 was Re: another EMC Glitch? Ray Henry 2002-07-16 19:25:46 UTC Re: Re: Re: G92 was Re: another EMC Glitch?