This bachelor thesis presents the design and construction of a modified 3D-printer,

developed to accommodate a pelletbased extruder. The print quality of the new system

will be evaluated, and the performance of the machine will be assessed. This all will be

performed in combination with the comprehensive analysis of various polymer

materials and their mechanical properties when 3D-printed. This project was conducted

in collaboration with R.A.P.S AB in Landskrona, with the objective of developing a

printer equipped with new innovative technology capable of constructing geometry with

pelletbased material. The material testing is an extension to this by comparing the

different mechanical properties when printed in different standards.

The project has focus on the work process with design, construction, and testing. It will

go over results, setbacks and why different choices were made. It will go over how

different limitations have affected the project and how those have been overcome.

During this whole work process, standards like ISO 527 have been followed and the

vast knowledge base of the 3D-printing community as well as expert opinions.