How to make a stamp with your signature on a 3D printer

Updated October 22, 2026

What it's for

A stamp with your signature or logo is handy for receipts, notes, your shop's packaging, cards and invitations. With a 3D printer you can make it in an afternoon and it only costs the filament.

Keep in mind: many official procedures require a handwritten signature. Use it where a stamp is enough.

1. Prepare your signature

In the signature to stamp converter you can draw it with your finger or upload a photo. If you upload a photo:

• Sign on white paper with a dark pen, ideally a marker.
• Take the photo in good light, straight on and without shadows.
• Adjust the threshold until the preview shows a clean signature, with no marks from the paper.

Make my stamp

2. Stroke thickness

Signatures often have very thin strokes. For the printer to make them, each stroke must be at least 0.8 mm wide. If the tool warns you about thin strokes, raise the "Stroke thickness" or make the stamp bigger.

3. Why is it backwards?

Every stamp has its relief mirrored: when you press it on paper, the image flips and comes out the right way round. The converter does this for you. If what you want is a plaque to display the signature (not to stamp), uncheck "Mirrored".

4. Material and printing

The best material is TPU (flexible filament): it conforms to the paper and gives a more even print. PLA also works, with a little more pressure.

Print it with the relief facing up, with 0.12 to 0.16 mm layers so the thin strokes come out crisp. The handle is separate: it prints standing up and fits into the hole on the back (if it's loose, a drop of glue holds it).

5. How to stamp

Use a little ink: press the stamp on the pad a couple of times rather than once very hard. Set it straight on the paper and press evenly, without rocking it. If ink gets between the strokes, lightly sand the relief face on a flat surface to leave it smooth.

Frequently asked questions