Slicer settings for art

Filafy already bakes the important structural choices into every 3MF. The rest are one time tweaks in your slicer that flatter first layer artwork.

Arachne wall generator
Single outer wall on the first layer, for crisper art edges
First layer line width matched to every layer above it, so a thin color cannot vanish from the one layer you look at
Print quality profile for your printer and nozzle
Build plate pre selected, so bed temperatures follow it
Prime tower sized and placed beside the print when it fits, face down or face up
Printer, filament and color slots mapped, Bambu Lab filaments to their own presets and other brands to a generic one

Every value below is per nozzle, so pick your own. These are starting points, and filament and humidity move them.

Setting	0.2 mm	0.4 mm	0.6 mm	0.8 mm	Who sets it	Why it matters for first-layer art
Quality
Wall generator	Arachne	Arachne	Arachne	Arachne	Filafy sets thisFilafy sets thisFilafy sets thisFilafy sets this	Variable width walls trace fine art features cleanly. Already in every Filafy 3MF.
Line width → Initial layer	0.22 mm	0.42 mm	0.62 mm	0.82 mm	Filafy sets thisFilafy sets thisFilafy sets thisFilafy sets this	Filafy sets this. On the smaller nozzles, Bambu draws its first layer wider than every layer above it. That quietly drops color detail that fits inside a normal line but not inside a fat first layer one. Your 3MF opens with the two set equal. The trade is a little less squish on layer one, and that is worth it on the face people see. On the larger nozzles the presets already match, so nothing changes there.
Precision → Slice gap closing radius	0.006 mm (default 0.049)	0.012 mm (default 0.049)	0.018 mm	0.024 mm	You tune thisYou tune thisYou tune thisYou tune this	Stops the slicer welding hairline gaps in the artwork shut. Scale it with the nozzle: the default is coarse enough to close real color boundaries.
Precision → Resolution	0 or 0.006 mm (default 0.012)	0.012 mm is the default, 0 for max fidelity	0.012 mm (the default)	0.012 mm (the default)	You tune thisDefault is rightDefault is rightDefault is right	Lower keeps more outline detail; 0 keeps every vertex, and slices slower. Past 0.4 mm the nozzle is the limit, not the vertex count.
Flow → Initial layer flow ratio	1.06 (tuned; varies by filament and humidity)	1.00 default; try 1.02 to 1.05 if you see pinholes between colors	1.00 default	1.00 default	You tune thisYou tune thisDefault is rightDefault is right	A touch of first layer over extrusion fills micro gaps between color islands. A fat 0.6 or 0.8 line already squashes out flat, so leave it alone unless you see gaps.
Strength
Walls → Wall loops	4	2 (default), 3 for chunky tiles	2 (default)	2 (default)	You tune thisDefault is rightDefault is rightDefault is right	Four thin 0.2 nozzle walls are about the same 0.9 mm shell as two 0.45 mm ones. Two 0.6 or 0.8 walls are already thicker than that, so the default is more than enough.
Top surface pattern	Monotonic	Monotonic (default)	Monotonic (default)	Monotonic (default)	You tune thisDefault is rightDefault is rightDefault is right	One stroke direction means even sheen on the back of the print.
Bottom surface pattern	Monotonic Line (default Monotonic)	Monotonic Line (default Monotonic)	Monotonic Line	Monotonic Line	You tune thisYou tune thisYou tune thisYou tune this	Face down prints show the BOTTOM. Monotonic Line lays every stroke the same way across color fields, the closest thing to a printed poster finish. The one row to change at any nozzle.
Bottom shell layers	From Color depth	From Color depth	From Color depth	From Color depth	Filafy sets thisFilafy sets thisFilafy sets thisFilafy sets this	Filafy writes this into a painted export that prints face down, from your Color depth setting, so the color reaches the depth you chose. Printed face up, it writes Top shell layers instead. With Separate color parts on, it writes neither. Set the depth on the download panel, and leave these keys alone.
Speed
Initial layer speed	20 mm/s	20 to 30 mm/s (default 50)	20 to 30 mm/s	15 to 25 mm/s	You tune thisYou tune thisYou tune thisYou tune this	Slow and deliberate on the one layer everybody sees: better adhesion, cleaner color starts. A big nozzle is laying a lot of plastic per millimeter, so give it time.
Initial layer infill speed	25 mm/s	30 mm/s (default around 105)	30 mm/s	25 mm/s	You tune thisYou tune thisYou tune thisYou tune this	Same reason: the infill of layer one is still the visible face.

Watch the first few layers whenever you change a setting. Stay with the print until the first layer is down and you can see it going onto the plate cleanly. Most bad prints announce themselves in the first minute, and catching one there costs you a minute instead of a spool.