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03 · Clinical

Centrifuge syringe insert

A 3D printed insert that seats three syringe sizes in an Eppendorf centrifuge rotor.

Role
Design, printing and testing
When
Feb to Mar 2026
Where
With an orthopedic surgeon
Tools
SolidWorks, FDM printing

Notes

  1. Seats 10, 20 and 30 mL syringes
  2. Balanced at speed by tuning infill and walls
  3. Iterated directly with an orthopedic surgeon

The problem

An orthopedic surgeon needed syringes of three sizes to sit securely in an Eppendorf centrifuge rotor. A part spinning at speed has to stay balanced, or the rotor shakes.

What I did

I designed and printed the insert and iterated it directly with the surgeon through repeated prototypes and functional tests. Balance came from tuning infill, wall thickness and mass distribution, not just geometry.