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Accessible innovation
Affordable prosthetic solutionds designed for real people.
Advanced Technology
EMG control, up-gradable hardware and safety-first system.
Built With Purpose
Created from a real need to provide accessible prosthetic solutions for people and families facing financial barriers.
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Fully Articulated 3D-Printed System
The EvoArm Phoenix uses articulated fingers and a tendon-driven system to support reliable, natural movement. Its modular 3D-printed design focuses on comfort, function and everyday use.
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Clean, High-Quality Finish
Each EvoArm Phoenix uses durable 3D-printed parts with a clean, professional finish. Its modular design supports straightforward maintenance, repairs and replacement parts.
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Modular Hand Components
The EvoArm Phoenix uses replaceable, 3D-printed components for easier repairs, maintenance and upgrades. Individual parts can be replaced without rebuilding the entire hand.
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EMG Sensor Control Interface
The EvoArm Phoenix uses EMG sensor technology to detect muscle activity to control hand movement. Its adjustable interface supports responsive operation based on the user’s individual needs.
Our trusted partners
Problem
The Problem
Many prosthetic arms remain expensive, difficult to repair and inaccessible to the people who need them.
Our Approach
JH Designs creates affordable, open-source 3D-printed prosthetic arms. The EvoArm Phoenix uses modular, replaceable parts designed around each person’s needs and daily activities.
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Our Solution
The EvoArm Phoenix is an affordable, open-source 3D-printed prosthetic arm. Its modular design offers articulated movement, EMG control and replaceable parts tailored to each person’s daily needs.
The Problem & Our Approach
From First Contact to Ongoing Support
A clear, personal process helps shape each device around the individual’s needs, comfort and daily activities.
Initial Contact
Get in touch and tell us about your needs, goals and everyday activities.
Needs Assessment
We listen to your requirements and identify the activities, movements and features that matter most to you.
Design & Production
We design, 3D-print and assemble the device around the agreed requirements.
Fitting & Support
We review the fit, make required adjustments and provide continued support for maintenance and replacement parts.
Built With Purpose
Tested in Practice
Developed around real needs and improved through working prototypes, practical testing and live demonstrations.
Thomas’s Mother
“Seeing Thomas play hurling with his Evo Arm for the first time was an incredibly proud and emotional moment for our family. He finally had the confidence and support to take his place on the pitch alongside his teammates. The arm fits him well, holds the hurl securely, and gives him the freedom to enjoy the sport he loves. We are deeply grateful to John and JH Designs for the care, time, and determination they put into creating it. The Evo Arm has made a real difference to Thomas and brought so much happiness to our family.”
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