Can-engine printed kit: can caps, diaphragm clamps, displacer guides, crank stands, CD/platter hubs, syringe cradles — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/can-engine-printed-kit/  (CC BY 4.0)
Basis: Parts sized to the can, syringe, CD, platter, bearing and tube entries in this library; PLA/PETG, 0.2 mm layers, 3 perimeters
Catalog version: 2026-10-20

Sizes: see table below
- Layout (gamma, like the LES can engine): 12 oz can displacer cylinder on its side or upright over a tea light → printed can cap with a 3/32 in brass-tube guide and a 2.5 mm foam displacer rod → transfer port (Ø4.2, silicone tube) to a 10 mL syringe power piston in its cradle, or a Ø50 balloon diaphragm between two clamp rings → crank on a Ø3 skewer or Ø5 shaft in 623 bearings on the printed stands, 90° between displacer and power phase → CD flywheel on the Ø15 hub.
- Can cap: slides over the can body with 0.6 mm clearance, three M3 grub screws grip it; seal the joint with silicone. The guide takes 3/32 in (2.38 mm) brass tube for a 2 mm rod, or drill 3.2 for a skewer.
- Displacer: closed-cell foam (pool noodle, EVA) Ø62 × 30 for the 66 mm can, leaves 2 mm all round; stroke 20 mm; the can's height lets you run 110 mm of travel space. Hot end: tea light 15–20 mm under the can base.
- Diaphragm: Ø50 ring pair with a Ø25 centre disc and balloon rubber, 3 mm travel; or skip it and use the syringe. Flywheel: one CD on the Ø15 hub, balanced with a coin.
- Everything on this page is on the Long Earth Society shelf: parts list and engine proportions follow the LES can-engine build.

part  for  fasteners  print
can-cap-66 / 58 / 53.3 / 76.2  12 oz, sleek, slim, steel 300 cans  3 × M3 grub  PETG, 4 perimeters
diaphragm-ring-40/50/60 (×2)  balloon / silicone diaphragm  6 × M3 × 12 + nuts  any
diaphragm-disc  centre of the diaphragm  M3 × 10 to con-rod  any
crank-stand-40/60/80 (×2)  623 bearings on a Ø3 shaft  2 × M3 to base  PETG
hub-cd-15-to-5/8, hub-platter-25-to-5/8  CD or HDD platter flywheel  M3 set screw  any
syringe-cradle-10/20/60ml  power piston  4 × M3  any
displacer templates  foam cutting guide  —  optional

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- Wikipedia: Stirling engine — web — CC BY-SA 4.0 (text) — https://en.wikipedia.org/wiki/Stirling_engine
- Long Earth Society: Can engine build — video, web — LES site — https://longearthsociety.com/engineering/
- Long Earth Society: Engine builds (videos and write-ups) — web, video — LES site — https://longearthsociety.com/engineering/

Free files (CC BY 4.0, Xem Studio; STEP + STL, 23 parts): https://xemstudio.com/files/hardware/can-engine-printed-kit/index.json
API: https://xemstudio.com/api/geometry?object=can-engine-printed-kit