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Post-processing 3D prints: supports, sanding, painting and finishing

What happens after a print comes off the bed: support removal, sanding, priming, painting, assembly and quality checks.

Updated 2026-11-10 · AU3D Printing, Sydney

A print straight off the machine is rarely finished. These are the steps we use, and when each one is worth paying for.

1. Support removal

Overhangs need temporary supports. We remove them and clean the contact marks. Good orientation keeps marks on hidden faces.

2. Sanding

Progressive sanding smooths layer lines on large flat or curved surfaces. It adds labour, so we only do it where it shows.

3. Priming and painting

Figures and display models can be primed, painted and sealed. Multi-colour printing often replaces painting for simple colour areas.

4. Assembly

Larger builds are printed in parts and joined with pins, glue or screws. Our large mecha display model is an example.

5. Inspection

Every order is checked for fit, finish and colour before packing.

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