Tier Designs（ティアデザインズ）
Concept-stage ideas, brought to life through design and prototyping. Custom parts, made with uncompromising quality.
Start a ProjectWhat We Do
From initial sketches to finished parts, we help refine each detail with your goals, constraints, and intended use in mind — shaping designs ready for real-world use.
Practical design support centered on CAD, reverse engineering, material planning, and production-minded development. We help turn ideas, existing parts, or rough references into manufacturable designs.
Functional prototypes using in-house FDM printing, CNC machining, 3D scanning, and partner manufacturing when needed. Ideal for checking fit, form, and real-world usability before final production.
Where We're Strongest
Brackets, stays, mounts, replacement parts, and one-off components where real installation constraints matter just as much as the CAD model.
Typical needs
Low-volume components for projects where tight packaging, surrounding hardware, and practical assembly constraints all shape the design.
Typical needs
Projects that start from an existing part, a damaged component, or reference photos rather than a complete drawing set are often a strong fit.
Typical needs
These are some of the project types that tend to be a good fit. Your project doesn’t have to fit neatly into these examples, so feel free to get in touch.
Worth asking
If your project is a little different, unusual, or hard to place, it may still be a good fit.
Why it works
We support a range of custom part projects, especially where installation and serviceability matter in actual use. Hands-on automotive and motorcycle mechanic experience helps build tool access, clearance, and practical usability into the design from the start.
Portfolio
How We Work
We review your idea, existing part, photos, dimensions, and use case to understand the goal, constraints, and best path forward.
Key dimensions, materials, quantity, intended function, and production constraints are organized into a workable project definition.
Using CAD, reverse engineering, and production-focused refinement, we develop a design that is ready for prototyping or manufacturing.
Functional prototypes and testing to verify form, fit, geometry, and function before final production or a small production run.
Finished parts are produced using the most suitable process, checked against the intended specification, and delivered for real-world use.
What We Use
Let's Build Something
Whether you have CAD data, an existing part, reference photos, or simply an idea, we can help turn it into something real. Tell us what you have in mind.
Japanese & English supported
