Mechanical Design Intern, Metal 3D Printing (Summer)

Scrap Labs; Boulder (CO); On-site; USD 42,000 - 78,000; Part time

Benefits offered by this job

Weekly pay

Sick leave

Learning stipend

Mentorship and feedback

Job summary

Scrap Labs in Boulder, CO is seeking a Mechanical Engineering Intern for Summer 2027 to design, build, and validate mechanical systems for a metal 3D printer platform. This hands-on internship moves quickly from CAD to physical hardware, supporting rapid prototyping, integration, and test on-site.

You will design subsystems, create CAD models, build prototypes, and collaborate with electrical, firmware, optics, and process teams.

Qualifications

• Pursuing BS or MS in Mechanical Engineering with sophomore standing by Summer 2027.
• CAD experience in at least one major tool (SolidWorks preferred).
• Hands-on build experience through projects, labs, internships, or personal builds.
• Ability to work on site in Boulder, CO for the duration.

Responsibilities

• Design and iterate mechanical subsystems and fixtures for a metal powder bed fusion (SLM) 3D printer platform.
• Create and maintain CAD models and drawings, including clean assemblies and practical detailing.
• Build prototypes and test setups, then debug issues hands on and drive design improvements.
• Support integration with cross functional teams, electrical, firmware or software, optics or laser, and process development.
• Perform basic sizing calculations and tolerance checks for structures, fasteners, and mechanisms.
• Assist with manufacturing and assembly.
• Document build and test results clearly, including photos, notes, and revision changes.

Skills

CAD

SolidWorks

Hands-on prototyping

On-site (Boulder)

Team collaboration

Education

Pursuing BS or MS in Mechanical Engineering

Tools

3D CAD

Job description

Scrap Labs in Boulder, CO is seeking a Mechanical Engineering Intern for Summer 2027 to design, build, and validate mechanical systems for a metal 3D printer platform. This hands-on internship moves quickly from CAD to physical hardware, supporting rapid prototyping, integration, and test on-site.

You will design subsystems, create CAD models, build prototypes, and collaborate with electrical, firmware, optics, and process teams.