IAC 2026 Author Contact

IAC 2026 · Antalya · 5–9 October

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Get in touch with the authors of Real-Time Active Vibration Compensation in Microgravity Additive Manufacturing.

The research

Better prints through speed control.

Print-head speed modulation to reduce vibration-related surface defects in FDM printing, tested on the ground with replayed ISS vibration data.

FDM printer on a single-axis vibration stage next to the control laptop in the laboratory.
Ground-based vibration experiment
~29%lower mean surface roughness vs. uncontrolled vibration
Research overview

Real-Time Active Vibration Compensation in Microgravity Additive Manufacturing via Kinematic Speed Modulation

Ali Dereyurt & Nagkichan Moustafa Impram

IAC-26,A2,IP,17,x113015 · Submitted manuscript

We investigated whether print-head speed modulation could reduce vibration-related surface defects without adding a control actuator. A ground-based FDM printer was mounted on a single-axis motion stage replaying scaled NASA SAMS vibration recordings.

What the ground experiment showed

An offline-converged FxLMS speed profile reduced mean surface roughness by approximately 29% compared with the uncontrolled vibration condition.

Surface roughness on the measured face
ConditionMean Ra ± SD (µm)n
Reference1.81 ± 0.384
Uncontrolled3.14 ± 0.434
FxLMS profile2.24 ± 0.364
Sham profile3.06 ± 0.254

Scope and next steps

This was an initial ground-based demonstration using a precomputed profile streamed with the disturbance, not a validated online loop or an in-orbit test. Measurements covered one face per specimen. Timing effects could not be separated from differences in command delivery and print order.

Next steps include online control, measured secondary-path identification and multi-axis testing.

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