After completing Materials Tuning Guide, now we can print.
This article helps find values for :
– Retraction
– Retraction Speed
– Extra Restart Distance (Unretract Distance)
– Retract on Wipe (Prusa, Orca)
– Print Speeds
– Coasting (Cura, Simplify3D)
– Cooling
– Infill types
– Perimeter count (wall count)
And whether to use features like :
– Z-Hop (S3D, Prusa, Orca)
– Inside Out / Outside In (All)
– Infill before perimeter (prusa? orca?)
– Slowdowns
– Perimeter overlap
– Infill Overlap
Other features are considered empirical (?), meaning that you must experiment yourself.
‘Wipe’ is not here because I haven’t found it to be useful. If you want to suggest that it does, please email.
Core concept in print tuning : Pressure.
One specific material likes one specific pressure.
But pressure in FDM slicing is not an explicit knob. It is a result of speed and temperature, roughly. It also dependent on nozzle size and type.
For example, look at this benchy print with 0.8mm nozzle
The layers get better after temperature dropped by 10c and speed up by 20%.
This is almost reverse to filament where printing slower is better.
But this means we are close to the preffered pressure this particular yellow PLA likes,
And do not forget that it is also correlated to layer height, where it means how much we are asking the extruder to deposit continuously. And this means this is also correlated to extrusion multiplier.
So the knobs are :
Nozzle Size
Temperature
Layer Height
Speed
Extrusion Multiplier