How to 3D Print Miniatures on an FDM Printer – 9 Proven Steps

Printing tabletop miniatures on an FDM 3‑D printer can seem daunting, but with a systematic approach you can achieve professional results. Below is a concise, expert‑verified guide that walks you through every stage—from sourcing the model to the final paint job.

In short: download a ready‑to‑print STL, import it into Cura, adjust scale, fine‑tune settings, orient the model, add supports and a raft, slice, load the file onto your printer, print, and finish with sanding, priming, and painting.

For detailed screenshots and video demonstrations, refer to the links embedded throughout the steps.

Step 1: Find and Download a Miniature Model

Begin by sourcing a high‑quality STL from a reputable repository. Popular options include Thingiverse, MyMiniFactory, Cults3D, TurboSquid, and Printables. For specialized searches, use Yeggi or STLFinder.

Example: On Thingiverse, search for "Miniature Knight" and select the "Knight w/Polearm (28mm/32mm scale)" by Dutchmogul. Click "Download All Files" and save the STL to a dedicated folder.

If the download is a ZIP archive, right‑click and choose "Extract Here". For models with multiple poses or formats, navigate to the "Files" tab and download each file separately.

Step 2: Import the STL into Ultimaker Cura

Ultimaker Cura is a top choice for FDM users due to its intuitive interface and extensive settings library. Install Cura from the official site and launch the application.

In Cura, click "Open File(s)" and locate the STL you saved. Once imported, the model will appear on the virtual build plate.

Step 3: Scale the Miniature for Accurate Size

Correct scaling guarantees that your miniatures match standard tabletop dimensions (typically 28mm for small units and 34mm for larger figures). Use a calibrated scale model such as Miniature Scaler by Yoolis.

Import the scale model, set its scale to 100%, and position it on the plate. Place your miniature next to the 28mm reference and adjust its uniform scale until the height aligns precisely. After confirming, delete the scale model to avoid interference during printing.

Step 4: Fine‑Tune Cura Settings

• Layer Height: 0.08–0.16 mm for a 0.4 mm nozzle. Use multiples of your printer’s “magic number” (e.g., 0.04 mm for Ender 3).
• Infill Density: 100% keeps figures solid and heavy enough to stand. If you prefer hollow parts, increase shell thickness to 0.45 mm.
• Top/Bottom Layers: Set Top Layers to a high value (e.g., 999) and Bottom Layers to 0 to treat each layer as a top layer, enhancing surface quality.
• Print Speed: 20–25 mm/s balances speed and detail; 30–40 mm/s can also yield good results.
• Retraction: Perform a retraction test (e.g., Deltapenguin’s test) to fine‑tune distance (25–40 mm/s) and reduce stringing.
• Temperature: Lowering the print temperature slightly can help eliminate stringing.

Step 5: Orient the Model

Position the figure near the center of the build plate. Tilt it 10°–45°—45° is commonly recommended—to minimize overhangs and support material. Analyze the model to determine which orientation yields the cleanest surface and easiest support removal.

Step 6: Add Supports and a Raft

• Enable "Generate Supports". For delicate geometry, choose "Tree" or "Zig‑Zag" supports; enable "Break Up Supports in Chunks" for finer control.
• Set "Build Plate Adhesion" to "Raft" for a stable base and improved adhesion.
• Optional: Install the "Cylindric Custom Support" plugin from Cura’s Marketplace for manual support placement.

Step 7: Slice and Export

Click the large "Slice" button. After slicing, review the preview to confirm supports, raft, and layer alignment. Export the G‑code to an SD card or USB drive via "Save to Disk".

Step 8: Load and Print

Insert the media into your printer, select the G‑code file from the menu, and start the print. Monitor the first layers closely; pause or adjust if any anomalies appear.

Step 9: Post‑Processing

After printing, remove supports carefully. Sand the model with a progression of grits (120–3000) – a PAXCOO 42‑piece set is a solid choice. Prime with Rust‑Oleum Professional Primer Spray Paint, then apply a color palette. Many hobbyists favor a base gray to showcase detail; the Army Painter Dungeons & Dragons Acrylic Set is popular.

For painting tips, watch the dedicated video linked below.

Author

Michael Dwamena – founder of 3D Printerly, author of 900+ articles, and owner of 20+ 3‑D printers. He has guided millions of hobbyists and professionals through the world of 3‑D printing.