Industrial Design Proposal
MEZIE Handle
Prepared by: Amat Studios
Date: august 30, 2026
Valid for: 30 days
Prepared exclusively for MEZIE. Original two-part handle design, engineered from concept through CNC-ready documentation for South Korean production.
Executive summary
An original handle, built to be yours
( 01 )
MEZIE needs a two-part handle system — a metal grip mating with a replaceable plastic head via a snap-fit connection. The brief started from reference photography, but the goal isn't replication: it's an original design with its own form language and its own IP, engineered to perform the same function without inheriting someone else's geometry.
( 02 )
This proposal covers the full path from concept to production-ready files: an original aesthetic direction for the handle, complete parametric CAD for both mating parts, and a CNC manufacturing package — 3D model and toleranced 2D drawing — ready to hand to your South Korean manufacturer.
Challenge / Opportunity
Designing around a reference, not from it
( Challenge 01 )
Designing around a reference, not from it
The starting point is a competitor's product. The handle shape needs enough original character to stand as its own design, while still solving the same ergonomic and functional problem.
( Challenge 02 )
A snap-fit that has to work without a physical sample
Metal handle and plastic head have to mate reliably — tolerance, retention force, insertion feel — all defined without either part existing physically yet. That coupling has to be treated as one design problem, not two separate parts.
( Challenge 03 )
Documentation strict enough for a South Korean CNC supplier
Standard CNC tolerancing isn't enough here. The connecting notch needs explicit tolerance ranges called out on the drawing to match your manufacturer's requirements.
The Opportunity
A clean IP position from day one.
Doing this right — original geometry, validated fit, fully toleranced documentation — means MEZIE owns the design outright and hands its manufacturer a file package with zero ambiguity, rather than a rushed copy with legal exposure baked in.
Proposed solution
A handle system engineered as one part, not two pieces guessing at each other.
( 01 )
The metal handle and plastic head are designed together, as a single mating system, so the snap-fit connection is defined by intent rather than reverse-engineered from a photo. The result is an original silhouette — MEZIE's own proportions, transitions, and detailing — built around the same functional footprint as the reference.
( 02 )
The process covers concept direction, full parametric CAD for both parts, and a fit-validated connection between them. Every surface and tolerance decision is made to survive contact with a real CNC shop, not just to look right in a render. Original by design, manufacturable by default.
Scope of work
Week 1
Aesthetic Direction
Original handle form exploration (2–3 directions)
Direction lock-in with client
Week 2-3
CAD Modeling & Fit Engineering
Parametric CAD, metal handle (Creo)
Parametric CAD, plastic head interface (snap-fit geometry)
3D-printed prototype for fit validation
Week 4
Manufacturing Documentation
3D model, .STEP format
2D technical drawing, .PDF, with toleranced connecting notch
Deliverables
(01)
Constraint Map
Documentation of technical constraints, dimensional limits, and available design freedom. The foundation every downstream decision is built on.
(02)
Design Direction Deck
Distinct concept directions showing different formal languages within the established constraints. Presented for milestone review and direction selection.
(03)
Class A Surfacing
Refinement of the exterior surfaces to Class A quality, continuous, production-grade curvature suitable for tooling and premium visual finish. A follow-on phase once the base volume is approved.
(04)
Production CAD Volume
3D model of the product in production-ready CAD. Editable, constraint-aware, and ready to hand off to engineering or transition directly into Class A surfacing.
(05)
Physical Prototype
Held-in-hand validation of scale, feel, and proportions. Basis for go/no-go on the form factor.
(06)
DFM Review
Manufacturability analysis of the design — wall thickness, draft angles, undercuts, and parting lines — flagging risks before tooling commitment.
(07)
Supplier-Ready Package
Complete file set — CAD, drawings, CMF specs, and BOM — packaged and ready to send directly to a manufacturer for quoting.
The investment
Original Handle Design & Manufacturing Documentation
Aesthetic direction (original form, not copied)
Metal handle CAD + plastic head interface CAD
3D-printed prototype for fit validation
.STEP file + toleranced 2D .PDF drawing
Timeline: 3 weeks
Total
€2,500
Timeline: 3 weeks
( Payment Schedule )
50% on signing
50% before final delivery
Add-ons
Minor changes
$200
Major changes
$350
Next steps
Four steps to get started
Four steps to get your product to life.
Why us
Premium design work for objects that have to be built
Amat Studios is led directly by Alex Amat. Background in injection-molded product development, DFM for low-to-hig volume runs, and mold validation across consumer and industrial categories. Every file delivered is production-ready, not presentation-ready.
years
in the industry
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Client reviews
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clients
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awards
( Clients we worked with + )
Testimonial
( Let's contact )
Let's give your product the design it deserves.
This proposal is valid through September 30th, 2026
FAQ
( 01 )
Do you handle production, or just design?
( 02 )
What if I need changes after a phase is approved?
( 03 )
How do you handle communication throughout the project?
( 04 )
Can I use the files with any manufacturer or engineering team?
( 05 )