01 / THE SHORT ANSWER
Use the calibrated profile you already trust. Then make it miniature-sized.
For ordinary PLA, begin with your printer maker’s proven material profile. Reduce layer height, slow the visible outer walls, use two or three walls, turn cooling up after the first layers, and orient the model so supports stay away from the face and front of the body.
Do not begin by copying another printer’s temperature, retraction, pressure advance, or flow values. Those are machine-and-material settings. Calibrate them for your setup before blaming the miniature profile.
A clean 0.08mm print beats a failed 0.05mm print every time.
02 / STARTING PROFILE
A sane place to begin.
These are practical starting ranges for a calibrated printer using ordinary PLA—not universal promises. Use the closest supported machine profile, print one normal standing figure, and adjust from there. The max-detail range buys smaller steps and can reduce difficult overhangs, but it costs time; begin with the practical range unless a test print gives you a reason to go lower.
Keep the correct printer profile selected for the nozzle that is physically installed. A fine process profile does not replace the machine’s 0.2mm or 0.4mm nozzle definition, and the first layer should remain thick enough to be dependable.
03 / THE BIG LEVERS
Five settings matter more than the rest.
Nozzle diameter
A smaller nozzle resolves smaller details in the horizontal plane. Tiny text, eyes, fingers, and thin weapons benefit most.
Layer height
Lower layers smooth slopes and curved armor and can make shallow overhangs easier. They cannot recover detail the nozzle is too wide to draw.
Outer wall path
Use restrained outer-wall speed. Classic wall generation is a strong starting point on current Bambu profiles; Arachne can recover thin features, but its variable widths need inspection.
Orientation
Start around 20° backward and 20° to one side, then inspect the overhang view. The goal is fewer ugly undersides—not obeying a magic angle.
Supports
Start with tree or organic supports. Inspect internal islands, support bases, contacts, and the top gap; automatic supports are a draft, not a finished answer.
A smaller top Z gap can improve supported undersides but makes removal harder. There is no safe universal number: tune it in layer-height increments on a disposable test, and use only enough brim to keep narrow support towers planted.
Pricing an army while you tune? Use the filament cost calculator to include supports and waste.
04 / DIAL IT IN
One model. One variable. No folklore.
- 01Calibrate the machine first
Run the printer or slicer maker’s flow and temperature process for the exact filament on the spool.
- 02Choose a representative miniature
Use a normal infantry model with a face, weapon, cloth, and a few overhangs—not the easiest sculpt you own.
- 03Print the starting profile
Do not change six values at once. That produces a different print, not useful information.
- 04Fix the largest visible failure
Support scars call for orientation or support work. Soft edges point toward speed, cooling, flow, or nozzle size.
- 05Save a named profile
Include printer, nozzle, filament, and date. Future you should know exactly what worked.
05 / COMMON QUESTIONS
FDM miniature settings FAQ.
Can an FDM printer make good 28mm or 32mm miniatures?
Yes. A tuned FDM printer can produce clean, durable tabletop miniatures, especially with a 0.2mm nozzle. Resin still resolves the smallest facial and surface details more easily, but good orientation, restrained speed, and sensible supports close more of the gap than most profile tweaks.
What is the best layer height for FDM miniatures?
Start around 0.06–0.08mm with a 0.2mm nozzle or 0.08–0.12mm with a 0.4mm nozzle. Going lower can add a great deal of print time for a small visible gain, and the nozzle still limits horizontal detail.
How much infill should a miniature use?
Ten to fifteen percent is enough for most figures because walls provide most of the useful strength. Small limbs and weapons are often nearly solid from wall overlap anyway. Large monsters and bases may need a different choice.
Should I use tree or organic supports instead of normal supports?
Start with tree or organic supports for most miniatures. They can reach hands, weapons, and cloth without building a solid block against the model. They are not automatically better, though: normal supports can work well beneath broad, accessible overhangs. Whichever type you use, inspect the sliced support paths for unsupported islands, give narrow towers enough brim to stay planted, and keep contact points away from faces and other focal details.
Do I need a 0.2mm nozzle?
No. A 0.4mm nozzle is faster, more forgiving, and very capable for monsters, vehicles, terrain, and many tabletop figures. Use a 0.2mm nozzle when small faces, fingers, insignia, and thin equipment matter more than speed.
Why should I not copy someone else's temperature and retraction settings?
Those numbers depend on the printer, hotend, extruder, filament, firmware, and even the room. Begin with the manufacturer-supported profile for your exact machine and material, calibrate it, then change one variable at a time.
KEEP GOING
The rest of the field manual.
FURTHER READING
Understand the settings. Then make them yours.
For a deeper look at layer height and nozzle limits, read Prusa Research’s layer guide, its nozzle-profile documentation, and UltiMaker’s FFF design guide. For an excellent practical breakdown of orientation, overhangs, and support behavior, read HoHansen’s miniature workflow. Use all of them to understand why a setting works—not as a substitute for testing your printer, filament, and model.