Xem Studiomeasured geometrySoda-can gamma
Can, tea light, foam, syringe, skewer, CD: the first engine, no budget.
Ø62 × 30 foam displacer at 20 mm · 10 mL syringe at 10 mm · CD flywheel · 1–3 Hz on one tea light
11 printed parts · 10 bought lines · all printed STL URLs · Markdown · tick lines as you go (saved in this browser)
| subsystem | object | parts | qty | note | ||
|---|---|---|---|---|---|---|
| Cylinder | Aluminium beverage cans | can-12oz-standard-211 STEP · STL | 1 | buy | any 12 oz can | |
| Displacer | Can-engine printed kit | displacer-foam-62x30-template STEP · STL | 1 | cut EVA foam to the template | ||
| Rod | Craft sticks | coat-hanger-wire-2mm STEP · STL | 1 | buy | 2 mm wire | |
| Cap | Can-engine printed kit | can-cap-66 STEP · STL | 1 | 3 × M3 grub screws | ||
| Guide | Hobby brass tube (K&S) | brass-3-32in STEP · STL | 1 | buy | press in the cap | |
| Power piston | Syringe pistons | syringe-piston-10ml-f008 STEP · STL | 1 | replaces the plunger; lap into the barrel, run dry | ||
| Syringe barrel | Plastic syringes 1–60 mL as pistons and | syringe-10ml STEP · STL | 1 | buy | barrel only; measure the bore | |
| Cradle | Can-engine printed kit | syringe-cradle-10ml STEP · STL | 1 | |||
| Diaphragm (alt.) | Can-engine printed kit | diaphragm-ring-50 STEP · STL diaphragm-disc-25 STEP · STL | 1 | balloon rubber between two rings | ||
| Transfer | Silicone and PU tube | silicone-tube-4x6-50 STEP · STL | 1 | buy | ||
| Stands | Can-engine printed kit | crank-stand-60 STEP · STL | 2 | 623 pockets | ||
| Bearings | Ball bearings | bearing-623 STEP · STL | 4 | buy | ||
| Crankshaft | Craft sticks | bamboo-skewer-3x300 STEP · STL | 1 | buy | Ø3 skewer | |
| Crank discs | Stirling linkage fittings | crank-disc-b3-stroke20 STEP · STL crank-disc-b3-stroke10 STEP · STL | 1 | Ø3 bore for the skewer, M3 grub; 90° apart | ||
| Con-rods | Ross yoke kit (alpha Stirling with paral | conrod-45 STEP · STL | 2 | Ø3.2 ends; narrow enough for the syringe piston's fork; or bend coat-hanger wire | ||
| Crank pins | Dowel pins | dowel-3x12 STEP · STL | 3 | buy | 2 crank pins + the piston pin | |
| Flywheel | CDs | cd-dvd-120 STEP · STL | 1 | buy | ||
| Hub | Can-engine printed kit | hub-cd-15-to-5 STEP · STL | 1 | Ø15 → Ø3 (drill 3.2) or Ø5 | ||
| Heat | Tea lights | tea-light-38x16 STEP · STL | 1 | buy |
Build order
- Cut the can top off below the chime; deburr.
- Print cap, stands, hub, syringe cradle (and diaphragm rings if using a balloon).
- Cut the foam displacer with the template; 2 mm wire rod through it, into the 3/32 in guide in the cap.
- Cap on the can (grub screws + silicone); syringe in its cradle; 4 mm tube between.
- Skewer crankshaft in 623s on the stands; crank discs 90° apart; wire con-rods.
- CD on the hub; balance with a coin; tea light under the can.
Agents: each row's object has /api/geometry?object=slug and the MCP tool get_free_files; the STL list above is the whole print job.