About This Role

Ready to shape the future of manufacturing? As an Additive Manufacturing Engineering Co-op at Rennscot MFG, you'll be at the forefront of additive manufacturing technology while building a comprehensive skill set across advanced manufacturing processes. This hands-on role puts you in the center of our additive manufacturing operations, where you'll work with cutting-edge 3D printing technologies, optimize build processes, and support post-processing workflows.

What You'll Do

• Support Additive Manufacturing Operations

  • Plan, setup, and execute additive manufacturing builds using industrial 3D printing systems

  • Optimize build orientation, support structures, and process parameters for quality and efficiency

  • Post-process additively manufactured parts including support removal, heat treatment, and media blasting

  • Troubleshoot build failures and drive continuous improvement in additive processes

  • Develop and refine manufacturing processes for new additive technologies and materials

• Engineer Better Processes

  • Design and fabricate work holding fixturing for post processing additive components

  • Contribute to process development, refininf build layouts, and support removal strategies for improved quality

  • Participate in root cause analysis and corrective action for production issues

  • Document manufacturing processes, build parameters, and setup procedures for repeatability

• General Support

  • Support other departments (e.g., Quality, Subtractive Manufacturing, Assembly) as needed based on business demand

  • Attend team meetings and contribute actively to discussions, bringing a fresh perspective and a willingness to learn

  • Complete an end-of-term summary documenting key contributions, lessons learned, and recommended improvements for handoff to the engineering team.

  • Support other projects and assignments as needed.

What We're Looking For

• You've Got the Foundation

  • Currently enrolled in an accredited Bachelor's Degree program in Mechanical Engineering, Manufacturing Engineering, Industrial Engineering, or a related field.

  • Interest in additive manufacturing technologies and processes

  • Familiarity with CAD software (Fusion 360, SolidWorks, or similar)

  • Exposure to Build preparation software (Bambu Studio, Magics, 3DXpert, nTop, PreForm)

  • Strong attention to detail and eagerness to learn

  • Ability to work both independently and collaboratively

• Bonus Points If You Have

  • Experience with additive manufacturing systems (FDM, SLA, SLS, metal printing, etc.)

  • Knowledge of additive design principles and topology optimization

  • Experience with additive post-processing techniques

Who You Are - Skills & Abilities

• Future-focused – You're excited about how additive manufacturing is transforming industry

• Technically curious – You want to understand both the art and science of manufacturing

• Hands-on learner – You'd rather build and iterate than just read about it

• Process-minded – You see manufacturing as a system and love optimizing it

• Problem-solver – When a build fails or a process breaks down, you're energized to figure out why

• Detail-oriented – You know that parameters matter and documentation prevents problems

• Cross-functional – You're comfortable moving between additive, subtractive, and other manufacturing processes

• Improvement-driven – You're always asking "how can we make this better?"

• Adaptable – You thrive in a dynamic environment where priorities shift and technologies evolve

• Collaborative – You work well with machinists, engineers, and other team members to get results

Physical Requirements

The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job.

• Regularly stands, walks, and moves throughout the manufacturing facility for extended periods during machine setup, prove-out, and floor support activities.

• Frequently bends, stoops, kneels, and reaches to inspect equipment, tooling, work holding, and machined components at machine level.

• Occasionally lifts and carries materials, tooling, fixturing, and raw stock weighing up to 50 lbs; team lifts required for heavier loads.

• Regularly operates a computer workstation for extended periods for CNC programming, ERP documentation, and technical communication.

• Works in an active manufacturing environment subject to noise, vibration, metal chips, cutting fluids, and industrial equipment; required to wear personal protective equipment (PPE) at all times on the shop floor, including safety glasses, hearing protection, and steel-toed footwear.

• Manual dexterity required for operating CNC equipment, hand tools, and precision metrology instruments including calipers, micrometers, and indicators. May perform repetitive motions that may include wrists, hands and/or fingers.

• Visual acuity required to read technical drawings and GD&T callouts, inspect machined surfaces and features, and work with precision measurement tools.

• Communicating with others to exchange information

About Rennscot MFG

Rennscot MFG, founded in 2017, started as a motorsports-focused shop in the aftermarket automotive industry. Now, they are a leading provider of advanced manufacturing services located in Woburn, MA. Rennscot MFG strives to be more than just a machine shop; they solve problems in innovative ways, using a suite of integrated services to fuel a passion for ideation. With a focus on diversifying into commercial and critical technology sectors, Rennscot MFG delivers cutting-edge technologies and unwavering commitment to quality. They offer a comprehensive range of services, including reverse engineering, metal & polymer additive manufacturing, and precision machining to support various industries’ needs. For more information, visit rennscotmfg.com.

ITAR Requirement

To conform to US Government export regulations, including the International Traffic in Arms Regulations (ITAR) you must be a US citizen, lawful permanent resident of the US, protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the US Department of State. Learn more about the ITAR here: https://www.pmddtc.state.gov/ddtc_public/ddtc_public?id=ddtc_public_portal_itar_landing.

EEO Statement

Rennscot MFG is an Equal Opportunity Employer; employment with Rennscot MFG is governed on the basis of merit, competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.

It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.