Matching roller parts
Two base-and-cap pairs, one for each mushroom size.
Polymer clay bead roller preview
Press two sizes of polymer clay mushrooms around a retained stick, then use short finishing strokes.
Digital STL download for a filament (FDM) 3D printer or a 3D printing service. No physical item ships. Safety, licence, and refund details
Your download
Two base-and-cap pairs, one for each mushroom size.
Recessed lid gauges, batch-log notch and ruler, plus a 3D-printable sizing card.
Complete making and 3D printing guide, part list and licence. The supplied 3MF is an arranged geometry layout with archive notes, not a validated 3D printer process profile.
Maker workflow
For the 14 mm mushroom, use a 12 mm cap log cut to 4.8 mm and a 5.5 mm stem log cut to 6.3 mm. For the 20 mm mushroom, use a 17 mm cap log cut to 6.9 mm and a 7.8 mm stem log cut to 8.9 mm. The alternative total portions are a 9 mm log cut to 10.9 mm or 31.2 mm. Estimated clay weights are 0.90 g and 2.58 g.
Flip the cap front edge to back so the deep parts of its trough match those in the base. The symmetric rails also accept the reversed orientation, so check before pressing.
Build the stem on a 1.6 mm cocktail stick with the stick level with the foot. Push the cap portion on last, stopping the stick inside the cap so it cannot show through the crown. Seat the mushroom by pressing straight down, then use short even strokes to finish the seam. The stick stays in the finished mushroom.
Rest or chill before lifting the rim, tidy the seam and add gills with a needle tool if wanted. Pierce by hand only if a charm needs it. No separate piercing guide is supplied. Remove clay from the 3D-printed tool before baking and follow the clay brand guidance.
Before you start
Keep the making setup practical
Test the measured portion with scrap clay before making a batch.
Use light pressure and stop if the slide binds.
Remove clay after use with a soft brush or cloth, wipe clean and dry. Do not heat the 3D-printed tool.
3D printing setup
0.4 mm nozzle; PETG preferred, PLA also supported. 3D print both trays flat with troughs facing up and the cap lid on the bed. Use 0.28 mm body layers with adaptive layers to 0.08 mm or finer over the troughs, a 0.20 mm first layer, 3 walls, 1.0 mm top and bottom, 10 to 15 percent gyroid or lightning infill, and supports off.
Confirm the troughs remain open in slicer preview. 3D print one matching assembly first and check free sliding before using clay. The intended side clearance is 0.30 mm per side; this is not a snap fit.
The current 3D print recipe and final operation evidence remain under review. Preview renders do not establish physical performance.
Before you 3D print
No. This is a preview of digital STL files and a guide. You will need to arrange 3D printing and supply the making materials.
Rest or chill before lifting the rim, tidy the seam and add gills with a needle tool if wanted. Pierce by hand only if a charm needs it. No separate piercing guide is supplied.
The canonical Maker Licence allows sale of finished polymer clay pieces and excludes resale or sharing of the files and 3D-printed tools. A future eligible Print & Sell member delivery uses its own Member Licence. This preview does not grant access or resale rights.
The completed download will include the full guide, file list and applicable licence. Use the support route supplied with the delivery you actually receive. This preview offers no download or checkout.