I have written a filter file for you (as awarm-up to writing a more complicated one for somebody else)
save this code as "swapZU" in your linuxcnc directory, then make it executable [1]
Code:
#! /usr/bin/python
import re
import sys
import math
print '(Axes swapped, U to Z and Z to U)'
infile = sys.argv[1]
f = open(infile, 'r')
for line in f:
line = re.sub(r'Z','&',line)
line = re.sub(r'U','Z',line)
line = re.sub(r'&','U',line)
print line
Then edit the [FILTER] section of your INI to look like this:
Code:
[FILTER]
PROGRAM_EXTENSION = .ngc G-code
ngc = /home/andypugh/linuxcnc/swapZU
(Except using your home directory name, not "andypugh")
To keep it simple and obvious the regex will swap _every_ u and z, even in comments and variable names. Cleverer regexes could avoid this, but it shouldn't really matter.
Then all G-code files should have Z and U swapped.
[1] Either command line, or right click the file in the file manager, select "properties" select the "permissions" tab and tick "allow this file to run as a program"
