Preston Njapa

Mechatronics Engineer & Fabricator


Recent Projects

Fluid Reality




I am a member of mHUB Chicago, where I provide engineering contracting and consulting services to start-ups and companies developing new products, both within and outside of mHUB. 

Key Skills & Experience

Highly skilled in 2D & 3D CAD for Design for Manufacturing and Assembly.

Expertise in materials selection, manufacturing techniques, prototype development, electro-mechanical systems design, technical documentation, and interdisciplinary collaboration.

2D & 3D CAD

Rapid Prototyping

Material Testing

Breadboard Design

Engineering Contractor 

I specialize in developing innovative technologies within dynamic start-up environments. 

With extensive experience in both 2D and 3D CAD, I excel in Design for Manufacturing and Assembly, rapid prototyping techniques, and comprehensive project management. 

2023 - PRESENT

Fluid Reality

Developed and validated testing methods for proprietary haptic feedback actuators. Enhanced design and assembly processes.

2022 - 2023


Integrated ultrasound and magnetic technology for advanced medical tools. Managed full project lifecycle, with Class-II medical device standard compliance.

2022 - PRESENT

mHUB Chicago

Collaborated with start-ups to address diverse engineering challenges. Led brainstorming sessions with technical insights.

2021 - 2022


Pioneered techniques for robotic prosthetics and silicone molding through design and prototyping. Oversaw operations, including team tasks and quality checks.

Preston Njapa: Innovator & Maker 

I'm passionate about blending creativity with engineering to develop cutting-edge solutions. With expertise in mechatronics and prototyping, I bring ideas to life through innovative design and hands-on fabrication. 

Design Tools

I use SolidWorks, Autodesk Fusion 360, and Adobe Creative Cloud for advanced 2D & 3D modeling and comprehensive assemblies.

Fabrication Tools

I excel in hands-on prototype fabrication, employing techniques like CNC machining, 3D printing, laser cutting and more to bring concepts to life.

Experience Highlights

Design of Experiments for Development of Innovative Actuator Technology

Design, Development, Manufacturing, and Testing for Waterproof IoT Device

Detailed Mechanical Design for Manufacturing and Assembly of Class-II Medical Cart

What My Clients Are Saying

Joe Mullenbach, CEO

Fluid Reality

"Preston's innovative solutions and dedication to quality were instrumental in advancing our project. His ability to seamlessly integrate with our team and deliver exceptional results made all the difference. "

John Fitzgerald, CEO


"Working with Preston was a game-changer for our start-up. His expertise in mechanical engineering and prototyping brought our ideas to life with incredible creativity and results. "

How I Work With Clients

What is your process for taking a project from concept to completion? 

I begin by discussing the project goals and requirements with the client to understand their vision. Then, I create initial design concepts using CAD software. After client approval, I move to prototyping and iterative testing, refining the design until it meets all specifications. Finally, I oversee the manufacturing and assembly of the final product. My comprehensive approach is well suited for full life cycle product development, or specific touch points as needed throughout your prototyping journey.

How do you ensure that the final product meets the client's specifications and requirements?

I maintain close communication with clients throughout the project, providing regular updates and seeking feedback at key stages. I also employ rigorous testing and validation methods to ensure that the product meets all defined specifications and performs as expected. I am also experienced simulating regulatory tests.

What types of communication and updates can clients expect throughout the project?

Clients can expect regular updates via email or scheduled meetings, including progress reports, design reviews, and milestone achievements. I am also available for impromptu discussions to address any concerns or changes.

How do you handle revisions or changes requested by clients during the development process?

I welcome client feedback and handle revisions through a structured process. I assess the impact of the requested changes on the project timeline and budget, then implement the necessary adjustments while keeping the client informed of any implications. This ensures the final product aligns with the client's expectations.

Getting In Touch

Contact Information:

+1 (312) 600 - 7133

1623 W. Fulton Ave, Chicago, IL, 60612