Clay stamps for polymer clay jewellery

Polymer clay jewellery lives on texture, and the tool for that is a stamp, not a cutter. Order matters: roll the slab, emboss the pattern, then cut the shape. Doing it the other way round distorts the finished outline as you press. In Cookie-AI this is the object switch set to clay stamp, which builds a deeper relief than the cookie stamp because clay rebounds more than shortcrust does.

Size is the real constraint. Earrings are 20 to 30 mm across, and the pattern still has to come off a 0.4 mm nozzle. In practice: raised lines at least 1 mm wide, gaps between them at least as wide, relief height around 1 mm. Anything below that either does not print or gets flattened the first time you pull the stamp out of the clay. A few bold elements beat a fine mesh every time.

For printing, a finer layer height pays off here in a way it does not for cutters: 0.12 mm instead of 0.2 mm gives noticeably crisper line edges, and you can see the difference in the imprint. The back needs stiffness — around 30 percent infill — so it does not flex under the press, and a brim keeps the flat plate on the bed. Dust the stamp with cornflour before pressing and it releases cleanly.