what is "external offsets"?

What is "external offsets", what is this intended to be used for?

There are some very cool sims for external offsets that are part of the default installation of V 2.8 and 2.9 if you want to see some ideas on what it could be used for.

I also think Andy's cam grinding idea is very cool

So if i understand correctly it is like override for position. Thank you!

offsets are always position related
external mean they come from numbers not into Gcode
but are called by g-code
like the toolofset G41 G42 comming from tooltable
or basic from the Corrdinate system G54-G59 against the mashine system G53 Tells where to place the part

pl7i92 wrote:

offsets are always position related
external mean they come from numbers not into Gcode
but are called by g-code
like the toolofset G41 G42 comming from tooltable
or basic from the Corrdinate system G54-G59 against the mashine system G53 Tells where to place the part

This is not correct. You are thinking of tool offsets.
Please refer to the pins starting with axis.N.eoffset on this page
linuxcnc.org/docs/2.8/html/man/man9/motion.9.html

A proportion of the machine's velocity and acceleration are reserved for the external offsets with [AXIS_L]OFFSET_AV_RATIO in your INI file.
when enabled and configured eoffsets work similar to a MPG where a count pin moves the position by a specific distance set by the scale pin. Plasma THC is a special case as external offsets from THC are mutually exclusive with normal motion. So we do a kludge. We use double the possible velocities and acceleration with a Offset Ratio 0f 0.5. This gives us 100% of velocity and acceleration when in normal Gcode mode and also under THC control.

thank you i dident know that there is somthing like this existing
does plasmac interfear with this offsets as on a pointer view

greeting
Dli with external offsets could compensate for tool wear during polishing of outer edges on a glass polishing machine
thank you

Another example....

Thanks for your reply

something like this I need where to find the code
Greeting