Quote Originally Posted by Bob La Londe View Post
You've got to be tweaking. Nobody is that pathological naturally.

G53 does not trash the work offset. It has no negative affect. As you can see in this video the displayed work offset coordinates remain accurate through out. It does not cause a problem.

https://www.youtube.com/watch?v=c9rFFYyTUkE

You are just full of ****, and the fact remain a G53 safe Z height move is safer than an arbitrary G0 move because you don't have to check that it will be safe. If it was safe last time it will be safe next time and every time. Undercutting not withstanding of course.

If you wanted to be "safer" you could save the current coordinates to variables, and then return to them after executing your tool change, but if you are only doing a safe z move to implement your tool change its not necessary. Still that assumes the machine behaves as does the virtual one in my video clip.

Other problem? You mean where he had 2 T(x) values. You already corrected that. Not helping... maybe not helping you, but you can't be helped and your own words betray you.

You obvious have no understanding what's so ever of G-code in general and how it is coded

You are not going to see it in a Video, OMG, which I'm not even going to watch, you have to understand how the G-Code RS-274 standard is written in hard code that's the only place you can see what each code is doing

You can't have ( 2 ) forms of coordinates active at the same time, work offsets and machine coordinates, the G53 would not work unless the work offset is temporarily canceled


Coordinate system offsets are used to shift the coordinate system from the machine coordinate system. This allows the G code to be programmed for the part without regard to the part location on the machine. Using coordinate system offsets would allow you to machine parts in multiple locations with the same G code.

G53 is not part of the work offset coordinates system

G53 works off the Machine Home Coordinates so for it to work it has to temporarily cancel work Offsets for it to work

You would not see this in a Video just more of your uneducated BS