What is a good B.Sc dissertation title related to mechanical engineering (plant) please (potentially related to 3d printing)?

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Saeede Ghasemi

Investigating the effect of process variables on the mechanical properties of printed parts made of poly oxy methylene using a 3D printer using the layered deposition method (FDM).

Alessio Pricci

I do not understand what you intend by "plant"... I will give you a general title for 3D printing investigation:

Correlating mechanical properties to process parameters in 3D printing: the case of NAME OF YOUR SPECIFIC RESEARCH CASE

Best regards,

Vijay Krishna Banerjee

Innovative enactment of 3D Printing operations for sustainable and circular manufacturing: A Mechanical Approach