Assembly Technician

Scrap Labs LLC.; Boulder (CO); On-site; USD 24,796,800 - 38,572,800; Full time

Job summary

A leading 3D printing company in Boulder, CO, seeks an assembly technician with hands-on mechanical experience to assemble and troubleshoot printer modules. Ideal candidates have experience working with 3D printers, are comfortable using basic tools, and demonstrate clear communication skills. The role involves maintaining an organized workspace and following detailed build instructions. Compensation is competitive, ranging from $18-$28/hour or $38k-$58k/year depending on skills and experience.

Qualifications

• Hands-on mechanical assembly experience (projects with bikes/cars, robotics).
• Comfortable using basic tools (hex keys, torque drivers, calipers).
• Ability to follow instructions and maintain a clean build process.

Responsibilities

• Assemble printer modules and install components.
• Troubleshoot assembly issues and document fixes.
• Maintain organized assembly area and track build status.

Skills

Mechanical assembly experience

Basic tool usage

Problem-solving skills

Clear communication

Tools

CAD software (SolidWorks or Fusion 360)

Soldering and wiring harness experience

Job description

We build ultra low cost metal 3D printers and run a growing fleet of plastic and metal printers. You will get hands‑on time building real machines, learning practical assembly skills, and seeing how a printer goes from a pile of parts to a functioning system. To get a better sense of our mission and who we are, check out this interview of our founder.

Responsibilities

• Assemble and sub‑assemble printer modules (frames, gantry/motion, enclosures, wiring harnesses, mechanical assemblies)
• Install and align components (linear rails, motors, belts, pulleys, sensors, fasteners, covers)
• Route and secure cables, connectors, and harnesses cleanly and safely
• Follow build instructions, checklists, and torque specs, and help improve them over time
• Perform basic functional checks (motion, endstops/sensors, fans, heaters, safety interlocks where applicable)
• Troubleshoot assembly issues (fit, alignment, missing hardware, wiring mistakes) and document fixes
• Maintain an organized assembly area, label parts, and track build status per machine
• Have hands‑on mechanical assembly experience (hobby projects, bikes/cars, robotics, 3D printers, RC, etc.)
• Are comfortable using basic tools (hex keys, torque drivers, calipers, crimpers, heat shrink, wire management)
• Can follow a checklist precisely and care about clean, repeatable builds
• Like diagnosing mechanical or electromechanical issues and fixing root causes
• Communicate clearly, show up on time, and take ownership of build quality

Preferred skills and experience

• Experience assembling or modifying FDM or other types of 3D printers (Prusa, Creality, Bambu, Voron, etc.)
• Basic electronics comfort (connectors, polarity, strain relief, continuity checks)
• Familiarity with CAD (SolidWorks or Fusion 360) or reading mechanical drawings
• Soldering, crimping (JST/Molex), or wiring harness experience
• Schedule and location
• On‑site: 2510 47th St, Boulder, CO 80301
• 40 hours/week (typical schedule Mon to Fri; some flexibility based on build needs)
• Demonstrable passion for 3D printing and/or our mission of advancing Additive Manufacturing.

Additional requirements

• Ability to work safely in a production and prototyping shop environment.

Physical requirements

Physical requirements may include lifting, standing, bending, and working around shop equipment and active test setups. Must have decent finger dexterity to manipulate small connectors, screws, and parts.

Compensation and benefits

• Hourly or salary depending on schedule and fit.
• Hourly Pay Range: $18-$28/hr depending on skill and experience.
• Salary Pay Range: $38k-$58k/yr depending on skill and experience.

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.