Quick answer
Use a sharp plastic frame cutter to snip parts from the sprue at a safe distance from the model, then trim the remaining nub flush in a second cut. This two-step method prevents stress marks and broken details.
Why a dedicated cutter matters more than scissors or a hobby knife
Standard scissors crush the plastic as they cut, leaving white stress marks and flattened connection points. A hobby knife can slip and gouge the model or your fingers. A plastic frame cutter uses a sharp, thin blade that severs the sprue gate cleanly with minimal force, preserving the part's surface and your safety.
When you still need a hobby file or sanding stick
Even the best cutter leaves a tiny raised nub where the gate was attached. After snipping, a light pass with a fine file or sanding stick removes that last bit and blends the surface. Skip this step only if the nub is hidden inside a joint or under another part.
How to cut miniatures from the sprue cleanly
- 1. Identify the gate and position the cutter: Hold the sprue firmly and look for the plastic tab (gate) that connects the part to the frame. Place the cutter blades so they sit about 2–3 mm away from the part, not flush against it. Common mistake: cutting flush against the part can crush the plastic and leave a dent. Always leave a small buffer.
- 2. Make the first snip away from the model: Squeeze the cutter handles steadily until the gate snaps. The part will remain attached by a thin nub. This first cut releases most of the tension without stressing the model. Checkpoint: if you see white stress marks, you cut too close. Next time leave more buffer.
- 3. Trim the remaining nub flush: Turn the part so you can see the nub clearly. Place the cutter blades flat against the surface of the model and snip the nub off. The thin blade should remove it without digging into the plastic. Common mistake: twisting the cutter instead of squeezing straight. Twisting can tear the plastic and leave a rough surface.
- 4. (Optional) Sand or file the connection point: Run a fine hobby file or sanding stick over the spot where the nub was. Two or three light strokes are usually enough to make it invisible. Skip this step only if the area will be hidden after assembly or covered with thick paint.
Product used in this guide
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Plastic Frame Cutter: The Plastic Frame Cutter has a sharp, thin and precise blade designed for trimming and converting all plastic models and miniatures. Its thin profile lets you reach tight sprue gates without crushing nearby details, which is the main cause of damaged parts during removal.
Plastic Frame Cutter
