Hello, 

i have read about screw compensation (not Backlash compensation) and found 
a site (http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Screw_Compensation) and 
thought it is a really nice way to get a accurate machine without linear 
scales. 

So as far as i understand i have to: 

1. accurately measure every position in forward and reverse direction (only 
256 positions for each axis as far as i know) for example 10.000 9.980 
10.020

2. Create a .comp file (for example xscrew.comp) then add the measured 
positions to the file 

and add COMP_FILE = xscrew.comp as well as COMP_FILE_TYPE = 0 to every AXIS 
of the INI file?

is it even supported in machinekit?

thanks

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