I understand that, but that doesn't really answer the question - what determines the machine/controller resolution/precision, the machine and electronics notwithstanding. If I set the G Code coordinates to x.x is the resolution/accuracy actually 0.1" or is it 0.01" or 0.001" or something greater?
Lets say the machine is at X 0.0 and Y 0.0. The G Code commands a move to X 1.0 Y 0.0 (again in inches). Does the machine move to that new position with a precision of 0.1", 0.01", 0.001" or something greater (using the theoretically perfect machine of course)? Does it make a difference if the G Code coordinates have one, two, three or more digits to the right of the decimal point? Mark On 04/03/2016 09:06 AM, John Thornton wrote: > http://linuxcnc.org/docs/2.7/html/gcode/overview.html#_number > > JT > > On 4/3/2016 7:48 AM, Mark wrote: >> Friend of mine and I have had an email discussion going over the last >> few days about movement precision, accuracy and resolution. >> >> Lets say there are three different G Code files, A, B and C. >> >> In file A, the coordinates are such: X x.x Y x.x >> >> In file B, the coordinates are such: X x.xx Y x.xx >> >> In file C, the coordinates are such: X x.xxx Y x.xxx >> >> For simplicity's sake, no Z axis and the units are inches. >> >> Using file A for example, with the coordinates only given with 0.1" >> precision, what exactly does the controller do? Does it actually work >> to 0.1" precision or does it work to moreprecision, vis-a-vis when >> making moves? >> >> Is file C, with precision to three decimal places the standard precision >> in controllers, or do we just use three decimal places in the G Code >> because it's good enough for gummint workand the controller can actually >> make more precise moves (dependent of course on the machine, the >> mechanics and the electronics)? >> >> Mark ------------------------------------------------------------------------------ Transform Data into Opportunity. Accelerate data analysis in your applications with Intel Data Analytics Acceleration Library. Click to learn more. http://pubads.g.doubleclick.net/gampad/clk?id=278785471&iu=/4140 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
