Can-engine frame: base, can stand, crank bearings and syringe pad in one part — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/can-engine-frame/  (CC BY 4.0)
Basis: Placed from the assembled can engine on this site (tools/asm_can-engine.py): 12 oz can cut to 110, tea light 38 × 16 with its cup top 17.5 below the can rim, 623 bearings, syringe-cradle-10ml, 10 mL barrel 111 below the crank axis
Catalog version: 2026-10-20

Overall (mm): length 115.0, width 91.0, height 324.5
- One part: a 115 × 91 × 5 base; on it a Ø76 / Ø58 ring the can's standing rim sits on, 38.5 above the table (the tea light stands on the base inside the ring; three 22 × 20 air windows); a 6 mm back board at y 40–46 up to z 270; two posts rising from it to two bearing arms 8 thick along the shaft, each with a Ø10 pocket through it for a 623 on the crank axis at z 312.5; a pad whose face sits 11.95 from the syringe axis, where syringe-cradle-10ml bolts on with 4 × M3 × 16 into tapped holes.
- The cranks are overhung, one at each end of the Ø3 shaft, so no shaft crosses a con-rod: the power con-rod at x −49.8 over the syringe, the displacer con-rod at x 0 over the cap's rod guide; the bearing arms and the Ø100 flywheel sit between the two crank discs.
- The syringe stands tip-down; its Luer tip is joined to the cap's transfer barb by three 20 mm lengths of 4 × 6 tube and two transfer elbows (up from the barb, across, up into the tip).
- The pockets and tapped holes are listed under Mating features.

feature  position_mm  mates with
can ring top  38.5  12 oz can standing rim
crank axis  z 312.5, y 0  two 623 bearings (Ø10 pockets)
bearing arms (x)  −40.3..−32.3 / −18.5..−10.5  flywheel between them
cradle pad face  y 11.95  syringe-cradle-10ml base (4 × M3 × 16)
syringe axis  x −49.8, y 0  10 mL barrel, tip down

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- Long Earth Society: Can engine build — web, video — LES site — https://longearthsociety.com/engineering/

Free files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/can-engine-frame/index.json
API: https://xemstudio.com/api/geometry?object=can-engine-frame