Re: [CAD_CAM_EDM_DRO] Thoughts on Gcode interpreters and CNC controls....

> From: dougrasmussen@...
> My question is, why don't controls have an option to pre-scan a
> program and by accessing the tool and part offset tables pre-calulate
> all the cutter paths so that when actually cutting all the controller
> has to do is deal with interrupts and motion control? Or do some
> controls have that ability?

They do, it's called "look ahead", and the number of blocks the control looks
ahead is usually part of the specification. The EMC software starts
interpreting the g-code as soon as you start running a program and usually
has most of my programs fully interpreted by the time the first tool is
loaded. I don't know how big the look ahead buffer is, but it must be huge.

Matt