Abstract
This paper discusses the challenges faced with 3d print¬ing thermoplastics at the Caribbean Maritime University in the tropical marine climate of Kingston, Jamaica and the strategies implemented to overcome these issues. 3D printing or additive manufacturing has brought about massive changes in the manufacturing sector and will continue its disruption cycle for some time to come. To¬day plastic continues to be the leading 3D printed mate¬rial for its cost, flexibility and durability. Some of these plastic materials also known as “filaments” are hygro-scopic meaning they tend to attract and absorb moisture from the air. The materials such as nylon and polyvinyl alcohol (PVA) are significantly affected by moisture in the air and the results typically include poorly printed parts or in some cases in near liquid form. At the Caribbean Maritime University, the team performed research and development that has sought to improve the Additive Manufacturing factory’s humidity levels to protect the filaments integrity and performance. In addition, to pre¬serve the strength and performance of the filaments, the use of desiccants and filament drying techniques were tested. Implementing these strategies has brought signif¬icant improvements in 3D printing strength and quality.