simple setup - do i need to use offsets?

More
25 Jul 2011 17:48 #11843 by steeley
I'm trying to carry out this simple task, which I've done on other setups but it seems to be defeating me so far...

1/ move machine to where I want the zero position and save it as 'machine zero position' ('home' button in emc I guess??)

2/ move machine to the corner of my workpiece and save this as' workpiece zero'.(' touch off' button ??)

TIA

Please Log in or Create an account to join the conversation.

More
25 Jul 2011 18:05 #11844 by piasdom
are you trying to offset it for the diameter of the edge finder or end mill?
or is this to setup tool change position ?

Please Log in or Create an account to join the conversation.

More
25 Jul 2011 20:24 #11849 by steeley
Just need a simple tool change
position at zero/home or whatever you want to call it. then
save the position of the work/first cut point

I'm trying to do what it says here:
www.cnccookbook.com/MTCNCTipsTechniques.htm

which is what I have done in the past.

thanks

Please Log in or Create an account to join the conversation.

More
25 Jul 2011 21:22 #11853 by andypugh
steeley wrote:

Just need a simple tool change
position at zero/home or whatever you want to call it. then
save the position of the work/first cut point


The machine zero (G53) which is used by G30 and G28 (and in which a tool change position would be defined) is relative to the home switch positions, and defined by the INI file.

If you don't have offsets, then I think that the home button will define the G53 for each axis such that the current position is the value from the INI file for Home.

And Yes, to zero the DRO and G-code XYZ you would use Touch-off into the G54 or other coordinate system. You can also use Touch-off to set your tool lengths.

Please Log in or Create an account to join the conversation.

More
26 Jul 2011 10:05 #11860 by Rick G
You can jog your machine to your "home" position then use the "Home" button to set each axis as home x0y0z0 etc.

Then move your machine to the work position and touch off each axis, this will set your DRO to x=0 y=o z=0.

You can now run your program from there.

To return to your "Home" position use G53
Such as
G53 G0 Z0
G53 G0 X0Y0

Rick G

Please Log in or Create an account to join the conversation.

More
26 Jul 2011 16:58 #11877 by steeley
Thanks for all the info. I was missing a G53 which was getting me confused.

Please Log in or Create an account to join the conversation.

Time to create page: 0.069 seconds
Powered by Kunena Forum