per feature slicer post-process script

per_feature_gcode.py

import sys
import re
import os

FASTSCV=120
NORMALSCV=15
BRIDGESCV=8
TOPFLOW=95  #top flow ratio 0-100

sourceFile=sys.argv[1]

# Read the ENTIRE g-code file into memory
with open(sourceFile, "r") as f:
    lines = f.readlines()

if (sourceFile.endswith('.gcode')):
    destFile = re.sub('\.gcode$','',sourceFile)
    try:
        os.rename(sourceFile, destFile+".sqv.bak")
    except FileExistsError:
        os.remove(destFile+".sqv.bak")
        os.rename(sourceFile, destFile+".sqv.bak")
    destFile = re.sub('\.gcode$','',sourceFile)
    destFile = destFile + '.gcode'
else:
    destFile = sourceFile
    os.remove(sourceFile)

with open(destFile, "w") as of:
    of.write('; Ensure macros are properly setup in klipper\n')
    for line in lines:
        # Reset before any feature change 
        if line.startswith(';TYPE'):
            of.write('M221 S100\n')
            of.write(f'SET_VELOCITY_LIMIT SQUARE_CORNER_VELOCITY={NORMALSCV}\n')
        #  Normal write line
        of.write(line)
        # Per feature override
        if line.startswith(';TYPE:Internal infill') or line.startswith(';TYPE:Solid infill'):
            of.write(f'SET_VELOCITY_LIMIT SQUARE_CORNER_VELOCITY={FASTSCV}\n')
        elif line.startswith(';TYPE:Bridge infill'):
            of.write(f'SET_VELOCITY_LIMIT SQUARE_CORNER_VELOCITY={BRIDGESCV}\n')
        elif line.startswith(';TYPE:Top solid infill'):
            of.write(f'M221 S{TOPFLOW}\n')