3D Prototype of Compression Spring Mechanism

Project Title:
Build Functional 3D Printed Polymer Prototype of Helical Tubular Compression Spring Mechanism
Project Description:
I am seeking an experienced mechanical designer, 3D printing specialist, or prototype developer to build a working physical prototype of a helical tubular compression spring based on my patented design.
This is a custom compression spring with a tubular (hollow) helical structure. The complete technical details, drawings, and specifications are provided in the attached patent document.
Important Note: The prototype must be 3D printed using polymer materials only. No metal version is required at this stage.
Patent Information:
Patent Number: US 12,612,951 B1
Full patent document is attached to this project.
Scope of Work:
• Review the patent document thoroughly and understand the intended functionality of the spring mechanism.
• Design and fabricate one or more functional physical prototypes using 3D printing (FDM, SLA, or other suitable polymer printing technology).
• Select appropriate polymer materials (e.g., PLA, ABS, PETG, Nylon, TPU, or reinforced composites) that can demonstrate spring-like behavior.
• Ensure the prototype demonstrates proper compression, load-bearing capacity, spring rate, and ability to return to its original shape as per the design intent.
• Provide recommendations on material selection, printing parameters (infill, wall thickness, orientation, etc.), and design-for-manufacturability improvements for 3D printing.
• Deliver the finished prototype(s) along with basic performance test data (load vs. deflection curves, compression cycles, fatigue behavior if possible).
• Share clear photos and a short demonstration video of the working prototype.
Requirements:
• Proven experience in 3D printing functional mechanical prototypes, especially flexible or spring-like parts.
• Good understanding of material properties for spring behavior in polymers.
• Access to reliable 3D printers (FDM and/or resin) and ability to optimize prints for mechanical performance.
• Ability to maintain confidentiality (NDA can be signed if required).
• Strong communication skills and ability to provide regular updates with photos/progress.
Please apply with:
• Your relevant experience in 3D printed functional mechanisms or spring-like prototypes (include examples if possible).
• Estimated timeline and total cost.
• Suggested materials and printing technology.
• Any questions regarding the patent or design.
This prototype is critical to support commercialization and licensing efforts. High-quality work, attention to detail, and professionalism are essential.
Looking forward to your proposals.