Date of Award


Document Type


Degree Name

Master of Science (MS)


Mechanical and Civil Engineering

First Advisor

Hector Gutierrez

Second Advisor

Beshoy Morkos

Third Advisor

James Brenner

Fourth Advisor

Ashok Panditv


The work presented in this thesis provides fundamental research for investigating the application of 3D printing pens for the repair of components manufactured by 3D printers. Test specimens of three different print orientations were 3D printed with acrylonitrile-butadiene-styrene (ABS) and underwent a tensile load test, through rupture, to determine the maximum tensile load experienced. These ruptured specimens were then manually repaired with a 3D printing pen and put through another tensile test to determine the percentage of maximum tensile load retained. The two print orientations that had the axis of tensile load applied parallel to their print layers experienced rupture after repairs, either within the repair region or in a different location of the test specimen. These specimens, which ruptured in the repair region, retained an average of (81 ± 10)% of the maximum tensile load. The specimens that ruptured outside of the repair region retained an average of (86 ± 4)% of the maximum tensile load. The third orientation, which had the axis of tensile load applied perpendicular to the print layers, only experienced rupture outside of the repair region. These specimens retained an average of (104 ± 17)% of the maximum tensile load. This thesis concluded that the 3D printing pen demonstrated the ability to effectively repair 3D printed specimens and suggests the continued investigation of further applications.


Copyright held by author