Joshua Knospler Portfolio

About

Mechanical Engineer & Robotics Enthusiast.

  • Website: www.joshuaknospler.com
  • Phone: +973 670 8878
  • City: Sparta, NJ
  • Degree: Master of Science
  • Email: joshua.knospler@gmail.com
  • Freelance: Available

I have a strong passion for designing innovative mechanisms and solving complex engineering challenges. Outside of engineering, I enjoy outdoor activities such as spikeball, disc golf, and backpacking. I also like to work on personal projects like building drones and spot welding batteries for my electric longboard. I excel in both team settings and when working independently, consistently ensuring tasks are completed efficiently. My excellent time management and self-driven approach help me stay focused and achieve my goals.

Skills

With a strong foundation in mechanical design and engineering, I have developed a versatile skill set across various tools and technologies, enabling me to tackle complex projects and deliver innovative solutions.

Mechanical Design

SolidWorks GD&T (Fundamentals) Tolerance Stack-ups Design for Manufacturing (DFM) Design for Assembly (DFA) Mechanism Design Electromechanical Systems Technical Drawings

Prototyping & Manufacturing

FDM & SLA 3D Printing Rapid Prototyping Silicone Molding PCB Assembly (SMD) Soldering & Rework Test Fixture Design Bench Testing Instrumentation & Sensors

Embedded & Controls

Python MATLAB C++ Arduino Raspberry Pi (Linux) Serial & I2C Communication State Machines Control Systems (Fundamentals)

Analysis & Simulation

ANSYS (Basic FEA) SolidWorks Simulation Flow Simulation Data Analysis Experimental Validation System Modeling

Robotics & Systems

Modular Robotics Pneumatic Actuation Soft Robotics ROS (Basic) Embedded Communication System Architecture Integration & Debugging

Tools & Infrastructure

Git AWS (S3, Route 53) HTML & CSS Technical Documentation Research & Publication Project Leadership

Resume

Experienced engineer with a diverse skill set in mechanical design and prototyping, proficient in applying advanced tools and technologies to solve complex engineering challenges and drive innovative solutions. Strong interest and years of experience in design work, wearables, and robotics.

Sumary

Joshua Knospler

Driven and hardworking engineer with 4+ years of experience in research and design.

  • Sparta, NJ 07871
  • (973) 670 8878
  • joshua.knospler@gmail.com

Education

Master of Science in Mechanical Engineering

2023 - Current

Rowan University, Glassboro, NJ

Graduate research fellow on thesis track. Developing a modular, reconfigurable, pneumatically driven soft robotic actuator for versitle grasping, locomotion, and variable siffness capabilites.

Bachelor of Science in Mechanical Engineering

2020 - 2023

Rowan University, Glassboro, NJ

Pursued degree in mechanical engineering. Worked on multiple team and research-based engineering projects. Graduated with honors and awarded the Tirupathi Reddy Chandrupatla Award for Excellence in Mechanical Engineering.

Associate of Science

2019 - 2020

Sussex County Community College, Newton, NJ

NJ Star Student. Received my degree 1 year after graduating high school before transfering to Rowan Unviersity.

Experience

Mechanical Engineer | Mechatronic System Design & Integration

March 2025 - Present

Knos Labs, Sparta, NJ

  • Design and build electromechanical systems for clients by integrating microcontrollers, actuators, sensors, and vacuum- and motor-driven mechanisms with embedded firmware and custom control software for intelligent, remotely operated systems.
  • Lead end-to-end system integration, including CAD-based mechanical design, additive and subtractive manufacturing, embedded software development, electronics integration, and testing to deliver reliable, application-ready prototypes.

Research Engineer, Modular Soft Robotic Actuators

May 2022 - Present

Rowan University, Glassboro, NJ

  • Designed and fabricated reconfigurable soft robotic actuators with custom mechanical, pneumatic, and electrical connectors to enable adaptive locomotion and manipulation, using custom mold design, 3D printing, and custom PCB integration.
  • Conducted system-level testing to validate actuator performance and reliability across multiple configurations.
  • Authored and presented peer-reviewed technical publications on actuator design and system integration at two IEEE conferences and two peer-reviewed journals.

Adjunct Instructor

September 2024 - December 2024

Rowan University, Glassboro, NJ

  • Delivered an introductory SolidWorks course to first-year engineering students, teaching parametric modeling, assembly techniques, and simulation tools.

Research Assistant, Smart Bio Cooling Device

May 2022 - September 2022

Rowan University, Glassboro, NJ

  • Responsible for independently researching and designing a thermoelectric method of bio cooling to effectively cool inflamed tissue by utilizing heat transfer principles to dissipate generated heat.
  • Created an interactive graphical user interface using Processing for temperature data transfer to and from device.

Mechanical Engineer Intern

June 2021 - August 2021

Tracer Imaging LLC, Ossining, NY

  • Assisted in the assembly and testing of PLC-controlled conveyor control boxes for automated assembly lines, including sheet metal modification, electrical wiring, and functional verification under tight deadlines.
  • Prepared components, built wiring assemblies, and inspected completed units to support reliable PLC system operation.

Publications

Here are my key research contributions and published works in mechanical engineering and robotics, showcasing innovative projects and findings that highlight my expertise in design, prototyping, and soft robotics. These contributions demonstrate my dedication to advancing the field through impactful research.

Paper Cover

Reconfigurable modular soft robots with modulating stiffness and versatile task capabilities

Authors: Joshua Knospler, Wei Xue, Mitja Trkov

Published in: Smart Materials and Structures, 2024

Summary:The paper presents modular, reconfigurable soft robots that can change their morphology and adjust stiffness for versatile task performance, such as object handling and operational tasks. The robots achieve reconfiguration through pneumatically driven actuators with integrated permanent magnets and coils (PMC), allowing easy rearrangement into various configurations. The system's versatility is demonstrated with ManusBot, a hand-like structure capable of individual actuation, enabling enhanced object manipulation and adaptability to various objects' shapes, sizes, and weights.

Download PDF
Paper Cover

TendrilBot: Modular soft robot with versatile radial grasping and locomotion capabilities

Authors: Joshua Knospler, Wei Xue, Mitja Trkov

Published in: Sensors and Actuators A: Physical, 2024

Summary: This paper introduces a modular, reconfigurable soft robot capable of modulating radial stiffness and enhancing grasping functionality for versatile tasks. The robot utilizes a unique interlocking mechanism with permanent magnets and coils (PMC) for adjustable inter-module connections, enabling both planar and spatial configurations. Through experimental testing, the paper demonstrates the robot's capabilities in radial grasping, stiffness modulation, multi-degree-of-freedom manipulation, and locomotion, alongside the development of a data-driven model that captures the actuator's mechanical performance.

Paper Cover

MagBot: Reconfigurable Modular Soft Pneumatic Actuators with Tunable Magnetic Connection Mechanism

Authors: Joshua Knospler, Wei Xue, Mitja Trkov

Published in: Advanced Intelligent Mechatronics, 2024

Summary: This paper presents a reconfigurable modular soft robotic actuator designed for versatile tasks, featuring an innovative inter-unit connection mechanism using magnets that can reverse polarity on demand. This flexible, articulated mechanism enables easy reconfiguration and multi-actuator assembly, allowing complex spatial configurations and reducing operational complexity. The paper also characterizes the mechanical performance of the actuators and their connection system through experiments, showcasing their reconfiguration capabilities and enhanced functionality.

Download PDF
Paper Cover

A Shared Electrical-Pneumatic and Reversible Locking Intermodule Connector for Modular Robots

Authors: Joshua Knospler, Wei Xue, Mitja Trkov

Published in: Advanced Inteligent Mechatronics, 2024

Summary: This paper introduces two innovative connectors, PAC (Power, Air, Communication) and MagLink (Magnetic Link), designed to improve interconnectivity in modular robots. The PAC connector consolidates air, power, and communication in a single housing, simplifying integration and reducing wiring complexity, while MagLink features a low-power, reversible magnetic locking mechanism for secure, robust connections. The study characterizes both connectors' performance in terms of pressure, airflow, strength, and power consumption, demonstrating their potential to advance self-reconfigurable modular robots with high force-to-weight and strength-to-power ratios.

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Paper Cover

Realizing Modular Self-reconfiguring Soft Robots through Inter-module Communication and Model Checking

Authors: Joshua Knospler, Nicholas Paglioca Wei Xue, Mitja Trkov

Published in: RoboSoft, 2025

Summary: This paper presents a modular self-reconfiguring soft robotic system that utilizes inter-module communication and transition system-based abstraction for safe autonomous reconfiguration planning. The system is composed of pneumatic actuators connected via electromechanical locking and PAC connectors, enabling both pneumatic and electrical connections. An algorithm is developed to compute reachable reconfigurations through model checking, and experimental validation confirms the successful reconfiguration of the system, providing insights for future autonomous planning and control of modular soft robots.

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Portfolio

Here highlights a selection of projects and research that demonstrate expertise in mechanical design, soft robotics, prototyping, and simulations. They showcases innovative approaches to problem-solving, from the development of advanced soft actuators to the manufacturing of gear and ratchet mechanism. These projects reflect my ability to design, test, and refine complex systems, while continuously pushing the boundaries of engineering to enhance functionality and versatility in real-world applications.

Modular Soft Robotic Actuator
Electric Longboard with Custom Battery
Hexapod Mobile Robot
Planetary Gear System
PID Controlled Ball and Beam
FPV Drone
Electric Bike Ratchet Mechanism
Mechanical Link Design
Simple Mobile Robot Control
ROS Gazebo Simulation
Mobile Soft Robot (IEEE)
Electric Bio Cooling Device
Solar Weight Transportation Robot

Contact

I’m currently open to engineering roles and collaborative opportunities. If you’re seeking a motivated engineer with hands-on design and prototyping experience, I’d welcome the opportunity to connect.

Location:

Sparta, NJ 07871

Call:

+1 973 670 8878

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