Geometry:

• Outer diameter (OD): Ø 18.00 mm
• Inner diameter (ID): not specified (solid or define wall thickness if hollow)
• Total length: 40.00 mm
• End faces: flat, sharp edges (recommend edge break 0.2–0.5 mm)

Manufacturing: 3D printed or machined (depending on material/requirement)

Tolerances (typical):

• General: ±0.20 mm (FDM printing) / ±0.05 mm (machined)
• Roundness/cylindricity: as required

3D printing notes (if applicable):

• Print orientation: tube axis along Z-axis → maintains circularity of bore
• Perimeters: ≥4; infill 20–40% (if hollow, perimeters dominate strength)
• Holes/fits: allow +0.1…0.3 mm clearance for proper fit