One-piece cutter inspired by the photo: a ring of 20 scalloped petals, an off-centre circular opening and ribs that imprint the petals without separating them. The requested diameter is kept at 350 mm, or 35 cm: as this size is very large for jewellery, set the “diametre” parameter to 35 to obtain a 3,5 cm motif. Dimensions: 193 × 193 × 8 mm. Printing tips: Print in the supplied orientation, with the rim flat and the cutting edges facing upwards, without supports. PLA or PETG, 0,4 mm nozzle, layers from 0,16 to 0,20 mm and 3 perimeters. The requested version requires a large build plate, ideally at least 370 × 370 mm; with diametre = 35, the footprint becomes 41 × 41 mm. To use, turn the tool over and press onto clay that is 2 to 3 mm thick: the ribs leave an imprint without cutting through. Remove the tool before baking.