My pcb2gcode settings while working with a TTC 3018 PRO

millproject

# general

metric = true
metricoutput = true
nog64 = true
nom6 = true
zchange = 2.0mm
zsafe = 2.0mm

back = [project name]-B_Cu.gbr
back-output = [project name]-B_Cu.gbr.ngc
drill = [project name].drl
drill-output = [project name].drl.ngc
outline = [project name]-Edge_Cuts.gbr
outline-output = [project name]-Edge_Cuts.gbr.ngc

# milling

mill-feed = 50mm/min
mill-infeed = 0.05mm
mill-speed = 4900rpm
voronoi = false
zwork = -0.3mm
extra-passes = 6
offset = 0.1mm

# drilling

drill-feed = 50mm/min
drill-side = back
drill-speed = 4900rpm
drills-available = 1.0mm, 2.5mm
nog81 = true
zdrill = -0.2mm

#cutting - Not Validated

cut-feed = 100mm/min
cut-infeed = 0.15mm
cut-side = back
cut-speed = 1500rpm
cutter-diameter = 1.5mm
zcut = -1.8mm
bridges = 1.0mm
bridgesnum = 4
zbridges = -0.8mm

App to analise the GCODE before execution: https://ncviewer.com

Blog post used as reference: https://mateusznowak.dev/articles/manufacturing-pcb-at-home/