3D Printing Miniatures — FDM vs Resin, Settings & Best Models

3D printing has fundamentally changed the tabletop gaming hobby. What used to mean buying expensive pewter or plastic miniatures from Games Workshop or Reaper now means downloading an STL file and having a custom army on your table in days. The quality of home-printed miniatures has reached a point where they rival — and in some cases exceed — commercially produced figures.

But printing miniatures well is one of the more demanding applications of desktop 3D printing. At 28mm to 32mm scale, every imperfection is magnified. Layer lines that disappear on a functional print become glaring on a miniature's face. Settings that work fine for a phone stand will ruin a detailed weapon or flowing cloak.

This guide covers everything from choosing the right printer technology to preparing your prints for painting.

FDM vs Resin — The Core Decision

The single biggest factor in miniature printing quality is your choice of printer technology. Both FDM (filament) and resin (MSLA/DLP) can print miniatures, but they produce dramatically different results.

Resin — The Standard for Miniatures

Resin 3D printing is the gold standard for miniatures, and it is not close. Modern MSLA (masked stereolithography) printers use UV light projected through an LCD screen to cure liquid resin one layer at a time, achieving resolution that FDM physically cannot match.

Why resin wins for miniatures:

• XY resolution of 19-35 microns. A 16K resin screen has a pixel pitch of approximately 19 microns — less than half the diameter of a human hair. This means facial features, armor textures, cloth wrinkles, and weapon details are reproduced with extraordinary fidelity.
• Z resolution of 10-50 microns. Layer heights of 0.01-0.05mm mean layer lines are invisible to the naked eye at tabletop viewing distance.
• Isotropic quality. Unlike FDM, which has visible layer lines on one axis, resin prints look equally smooth from every angle.
• Paint-ready surfaces. Resin miniatures take primer evenly and hold paint cleanly, making blending, washing, and fine highlights easier. The smooth surface is a massive advantage when painting 28mm figures meant to be viewed up close.

Resin printer recommendations for miniatures:

Entry-level resin printers capable of excellent miniature quality start around $150-$250. Look for 8K or higher resolution screens. Popular options include the Elegoo Saturn series, Anycubic Photon Mono series, and Phrozen Sonic Mini.

Resin printing tradeoffs:

• Resin is toxic in its liquid state and produces fumes — you need ventilation and PPE (gloves, mask)
• Post-processing requires washing in isopropyl alcohol and UV curing
• Resin prints are more brittle than FDM prints and can snap if dropped
• Smaller build plates limit batch sizes compared to large FDM printers
• Ongoing resin cost is higher per volume than FDM filament

FDM — Viable with Caveats

FDM can print miniatures, but expectations need to be managed. Even at the finest settings, FDM cannot match resin for fine detail at miniature scale. However, FDM has legitimate use cases in the miniature space.

FDM miniature settings:

• Layer height: 0.08mm is the practical minimum for most printers. Some users go to 0.06mm, but the quality improvement is marginal and print times increase dramatically.
• Nozzle size: 0.25mm or 0.3mm nozzle. The stock 0.4mm nozzle is too large for fine miniature details. Swapping to a smaller nozzle is the single biggest FDM improvement for miniatures.
• Speed: 20-30 mm/s for outer walls. Slow is essential for detail.
• Cooling: 100% fan from layer 2 onward. Maximum cooling helps preserve fine details and sharp overhangs.
• Temperature: At the lower end of the filament's range to reduce oozing and improve detail.

When FDM makes sense for miniatures:

• Terrain and scatter. Buildings, walls, rocks, trees, and dungeon tiles do not need the fine detail that character models require. FDM at 0.12-0.16mm layer height produces perfectly acceptable terrain at a fraction of resin's cost.
• Large models. Dragons, giants, vehicles, and other large models look great on FDM because the larger scale hides layer lines. A 150mm tall dragon printed at 0.08mm on FDM can look impressive.
• Prototyping and playtesting. If you need quick game pieces for testing and do not care about display quality, FDM is faster and cheaper.
• Bulk production. FDM's larger build volumes and lower material cost make it better for printing large quantities of simple tokens, markers, or terrain pieces.

Optimal Resin Settings for Miniatures

If you are going the resin route, these settings will produce excellent results:

Layer Height

0.03-0.05mm is the sweet spot for most miniatures. Going thinner (0.02mm) offers marginal quality improvement but doubles print time. Going thicker (0.08mm) starts to show visible layer lines on smooth surfaces like skin and cloaks.

For miniatures with heavy texture (chainmail, fur, bark), 0.05mm is perfectly fine. For smooth-skinned characters or faces, 0.03mm gives noticeably better results.

Exposure Settings

Exposure time depends on your specific resin and printer combination. Most resin manufacturers provide recommended settings, but for miniatures specifically:

• Use the recommended exposure time as a starting point
• Print an exposure test (like the Ameralabs Town or XP2 validation matrix)
• Err slightly toward under-exposure rather than over-exposure — over-exposure fills in fine details

Support Settings

Supports are critical for resin miniatures:

• Light supports (0.3-0.4mm tip diameter) for most areas
• Medium supports (0.5-0.6mm) for heavy overhangs and islands
• Place supports on the back, underside, and hidden areas of the miniature whenever possible
• Angle the model 30-45 degrees to minimize the number of support points and reduce suction force on the FEP film
• Use auto-supports as a starting point, then manually add and remove to optimize placement

Orientation

How you orient the miniature on the build plate matters enormously:

• Never print flat on the plate. The suction forces on large flat layers can cause failures and distortion
• Angle 20-45 degrees along one or both axes
• Face details away from the build plate — the side facing the plate often has the most support marks
• If the model has a flat base, you can sometimes print it upright with the base on the plate, but only for smaller minis

Preparing Miniatures for Painting

The gap between a raw 3D print and a painted miniature is where most of the work happens.

Resin Print Preparation

1. Wash thoroughly in isopropyl alcohol (90%+ concentration) for 2-3 minutes in a wash station
2. Remove supports before final curing — they are easier to remove when the resin is slightly soft
3. UV cure for the recommended time (typically 5-15 minutes depending on the curing station)
4. Clean support nubs with a hobby knife and fine sandpaper (400+ grit)
5. Prime with spray primer — grey is the most versatile primer color for miniatures

FDM Print Preparation

FDM miniatures need more prep work to be paint-ready:

1. Remove supports carefully with flush cutters and a hobby knife
2. Sand layer lines starting with 200 grit and progressing to 400-600 grit. Focus on the face and smooth surfaces.
3. Apply filler primer — spray filler primer (like Rust-Oleum filler primer) fills remaining layer lines
4. Sand again with 400-600 grit after primer dries
5. Repeat prime-and-sand if necessary until the surface is smooth
6. Final prime with regular spray primer before painting

This prep process adds 30-60 minutes per miniature for FDM. For resin, it is typically 5-10 minutes. This time difference is a major reason resin is preferred — when you are painting a 20-model army, saving 30 minutes per figure adds up fast.

Painting Tips for 3D Printed Miniatures

• Thin your paints. Multiple thin coats always look better than one thick coat. Mix paint with water or medium until it flows easily off the brush.
• Base coat, wash, highlight. This three-step process works universally: block in base colors, apply a dark wash to fill recesses, then highlight raised edges and surfaces.
• Zenithal priming (black primer followed by white from above) shows you where shadows and highlights naturally fall before you start painting.
• Seal your work with a matte or satin varnish spray when finished. This protects the paint and gives a consistent finish.

Best Sources for Miniature STL Files

The miniature STL ecosystem is enormous and growing. Here are the best places to find models:

MyMiniFactory — The premier platform for tabletop miniatures. Their "Tribes" subscription system lets creators run paid communities where subscribers get new models monthly. Many professional miniature sculptors use MMF exclusively.

Printables — Large free collection of miniatures, terrain, and accessories. Community ratings help identify quality designs.

Cults3D — Mix of free and paid miniatures with a strong artistic community. Good for unique, stylized sculpts.

MakerWorld — Growing miniature collection, especially strong for terrain and accessories.

Patreon and Tribe creators — Many top miniature sculptors release monthly packs through Patreon subscriptions. Creators like Loot Studios, Artisan Guild, Lord of the Print, and Titan Forge produce professional-quality sculpts on a monthly cadence.

3DSearch — Search for miniatures across all platforms simultaneously. When you need a specific creature, character class, or terrain piece, searching everywhere at once is the fastest way to find exactly what you need. Try searches like "dragon miniature," "dungeon terrain," or "human paladin" to see results from every major platform.

Cost Comparison

How does 3D printing miniatures compare to buying commercial ones?

| Approach | Cost Per 28mm Mini | Detail Level | |---|---|---| | Games Workshop plastic | $5-$10 | High | | Reaper Bones | $3-$5 | Medium | | Resin 3D printed | $0.10-$0.30 | Very High | | FDM 3D printed | $0.05-$0.15 | Low to Medium | | STL subscription (per mini) | $0.50-$2.00 | Very High |

Even accounting for printer cost, resin, and STL subscriptions, 3D printing miniatures becomes dramatically cheaper than buying after your first few hundred figures. For tabletop gamers who need armies, the savings are massive.

Building Your Miniature Printing Workflow

A practical miniature printing workflow looks like this:

1. Find or purchase the STL — Use 3DSearch, MyMiniFactory, or your preferred platform
2. Pre-support the model — Use Lychee Slicer or UVtools for resin, or your preferred FDM slicer
3. Print — Batch print to maximize efficiency. Most resin plates can fit 4-10 miniatures per run
4. Post-process — Wash, cure, and clean up supports
5. Prime — Spray primer in a well-ventilated area
6. Paint — Base coat, wash, highlight, seal
7. Base — Add basing materials (sand, grass, rocks) to the miniature's base for a finished look

With practice, this pipeline becomes efficient. Many experienced miniature printers prepare batches of 10-20 models at a time, running prints overnight and spending evenings on prep and painting.

Final Thoughts

If you are entering miniature 3D printing for tabletop gaming, buy a resin printer. The quality difference at miniature scale is too significant to ignore, and entry-level resin printers are affordable enough to be accessible. Use FDM for terrain and large models where its strengths — lower cost, larger build volume, and easier material handling — outweigh the resolution disadvantage.

The combination of a resin printer for characters and an FDM printer for terrain gives you the best of both worlds and is the setup most serious tabletop gamers end up with.