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Mechanical Engineering Intern, Machine Design (Summer 2027) Boulder, CO (On-site) Scrap Labs was founded under the belief that high performance metal 3D printing should be accessible to builders, labs, and small manufacturers, not just massive corporations. We are developing an ultra low cost, high performance metal powder bed fusion platform designed to be reproducible with off the shelf parts, minimal labor, and a scrappy, experimental ethos. As a Mechanical Engineering Intern, you will work alongside a small, high output group of engineers and technicians to design, build, and validate mechanical systems for our metal 3D printer platform. This is a hands on internship where you will move quickly from CAD to physical hardware, supporting rapid prototyping, integration, and test.
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. Currently pursuing a Bachelor's or Master's degree in Mechanical Engineering or related field, with at least sophomore standing by Summer 2027. CAD experience in at least one major tool, SolidWorks strongly preferred. Demonstrated hands on build experience through projects, lab work, internships, or personal builds. Ability to work on site in Boulder, CO for the duration of the internship.
Preferred skills and experience: Prior experience with 3D printing, FDM, SLA, SLS, or metal additive, including print constraints and post processing basics. Experience designing mechanisms, bearings, belts, lead screws, and alignment sensitive assemblies. Familiarity with GD&T and tolerance strategy. Exposure to basic FEA or practical stiffness and deflection reasoning. Comfort working in a prototyping environment with tools, fixtures, and shop equipment. Strong communication, concise updates, clean documentation, and effective collaboration.
Additional requirements: Ability to work safely in a prototyping shop environment. Physical requirements may include lifting, standing, bending, and working around shop equipment and active test setups. Physical requirements vary by role.
Compensation and benefits: Weekly pay range: $800 to $1500 per week, depending on experience and demonstrated capability. Paid sick leave in accordance with Colorado requirements. Learning stipend for role relevant training, courses, and materials. Mentorship and structured feedback, including ownership of a real subsystem or fixture deliverable. Apply Application Apply for this role and include your most relevant projects. Send a resume and a short note highlighting 1 to 2 things you have built, links, photos, or a portfolio encouraged. Apply for this job Applying for: Mechanical Engineering Intern, Machine Design (Summer 2027)
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First Name* Last Name* Preferred First Name Email* Phone* Country* Location (City)* If auto-fill uses coordinates, replace with your city. Resume or CV* Preferred filetype: pdf. Other acceptable formats: doc, docx, txt, rtf. Education School* Degree* Major or discipline* LinkedIn Profile Preferred filetype: pdf. Other acceptable formats: doc, docx, txt, rtf. Pitch or cover note (optional) How did you hear about this job?* If you selected Event or Other, please specify below. Please specify GPA (Undergraduate)* GPA (Graduate)* GPA (Doctorate)* SAT Score* ACT Score* GRE Score* Scrap Labs Employment History* Can you perform all essential functions with or without accommodation?* Are you legally authorized to work in the United States?* If Other, please explain Apply for this job Applying for: Mechanical Engineering Intern, Machine Design (Summer 2027)
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First Name* Last Name* Preferred First Name Email* Phone* Country* Location (City)* If auto-fill uses coordinates, replace with your city. Resume or CV* Preferred filetype: pdf. Other acceptable formats: doc, docx, txt, rtf. Education Add your most recent program first. School* Degree* Major or discipline* Graduation date (expected) Earliest availability LinkedIn Profile Portfolio URL Portfolio or Cover Letter Preferred filetype: pdf. Other acceptable formats: doc, docx, txt, rtf. Pitch or cover note (optional) How did you hear about this job?* If you selected Event or Other, please specify below. Please specify GPA (Undergraduate)* GPA (Graduate)* GPA (Doctorate)* SAT Score* ACT Score* GRE Score* Scrap Labs Employment History* Can you perform all essential functions with or without accommodation?* Are you legally authorized to work in the United States?* Citizenship Status* If Other, please explain Voluntary self-identification (optional) This survey is voluntary and will not be considered in hiring decisions. Responses are confidential and stored separately from your application. Gender Are you Hispanic or Latino? Veteran Status Disability Status Voluntary Self-Identification of Disability (Form CC-305) Why are you being asked to complete this form? Scrap Labs is a federal contractor. The law requires us to provide equal employment opportunity to qualified people with disabilities. We aim for at least 7 percent representation of people with disabilities. We ask this question at least every five years to measure progress. Completion is voluntary and confidential. Your decision will not affect hiring or employment. If you want to learn more, visit the Department of Labor Office of Federal Contract Compliance Programs website. How do you know if you have a disability? A disability is a condition that substantially limits one or more major life activities. Disabilities include, but are not limited to: Alcohol or other substance use disorder (not currently using drugs illegally) Autoimmune disorders such as lupus, fibromyalgia, or rheumatoid arthritis Blind or low vision Cancer (past or present) Cardiovascular or heart disease Celiac disease Cerebral palsy Deaf or serious difficulty hearing Diabetes Disfigurement caused by burns, wounds, accidents, or congenital disorders Epilepsy or other seizure disorder Gastrointestinal disorders such as Crohn's disease or IBS Intellectual or developmental disability Mental health conditions such as depression, bipolar disorder, anxiety, PTSD Missing limbs or partially missing limbs Mobility impairments requiring wheelchair, scooter, or walker Nervous system conditions such as migraine, Parkinson's, or MS Neurodivergence such as ADHD, autism, dyslexia, or learning disabilities Partial or complete paralysis Pulmonary or respiratory conditions such as asthma or emphysema Short stature (dwarfism) Traumatic brain injury I agree to the Scrap Labs Privacy Policy and consent to the collection of my information. Equal opportunity Scrap Labs is an Equal Opportunity Employer. Employment decisions are based on merit, competence, and qualifications and will not be influenced by any legally protected status.

Also on the board Same function, level within a rung

Level

Intern

Salary

$800 to $1500 per week

Location

Boulder, CO

Occupation

Mechanical Engineers

Industry

All Other Industrial Machinery Manufacturing

Posted

today

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