Your China-built mold won't run right?

We fix it. Remote, fast, honest. 40 years on the shop floor + AI diagnosis.

Free DFM check, replied by hand within 1 business day. No cost. No obligation.

the Shifu, 40-year mold maker
40Years of Molds
Transfer tooling rescue Defect diagnosis DFM before you cut steel US-based payment
What we do

Full mold design — and everything to keep it running.

Fixed price. Written plan. Two free re-diagnosis rounds. See exactly what you get →

Core service

Mold Design

Complete injection mold design: 3D assembly, 2D drawings, BOM. 40 years of mechanism judgment + AI-verified cooling, ejection and flow — for plastic, acrylic, or MIM.

from $800 / mold
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Mold in trouble

Production Rescue

Making scrap right now? Send photos and parameters. You get a root-cause diagnosis and a step-by-step fix plan your floor can follow.

from $499 / issue
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Before you commit

DFM & Mold Audit

New part, or an existing mold you're about to build, move or inherit? Get a 40-year eye on it first — ranked risks, export-readiness, in English. The cheapest way to catch a costly mistake early.

from $99 / audit
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Our work

What 40 years looks like.

These aren't products for sale. They're proof — three builds from the Shifu's four decades, from automotive tooling to optical acrylic to tungsten-carbide MIM.

Automotive wheel cap — from CAD to the curb
Acrylic Buddha — from steel to crystal
Tungsten carbide MIM — from powder to part

Plastic, acrylic, or powder metal — if it comes out of a mold, we've built it. That's the eye now reading yours.

The shop

Design, mold, and trial — all under one roof.

From the first drawing to the injection press, every step is done in-house, the standard way — nothing farmed out, nothing cut short.

A finished mold with its ejector pins

Standard mold base, done right

A finished mold on a proper standard mold base — guide pins, ejector pins, return springs, all where they belong. This is textbook construction, not a shortcut. The kind of tooling that runs for years without surprises.

A mold mounted in the injection press

Mounted and trialed in-house

The mold, craned into the injection press and clamped up for trial — the standard, correct way to prove a tool. We design it, build it, and run it ourselves, so every part of the process is under one roof and one pair of eyes.

The old drill-press bench

Every step in the shop

Drill press, grinder, hardened bits — the machining is done here, in-house, not farmed out to strangers. From cavity to cooling to the finished bore, one shop owns the whole chain and stands behind it.

The workbench by the window

Hand-finished and checked

The final fitting and finishing bench. Cavities are polished, shut-offs checked, fits corrected by hand before anything ships. Old tools, exact standards — the details a buyer can trust, start to finish.

the Shifu in his workshop
The Shifu

"A craftsman doesn't measure himself by the size of his shop — but by what he's studied, and settled into his hands over the years."

the Shifu has cut molds since the days of Wenzhou lighter shells — through acrylic, automotive, and tungsten MIM tooling. His old machines aren't a lack of budget: they're the tools four decades proved right.

How it works

Four steps. No meetings required.

1

Upload

STEP file or mold photos, through the form. Big files? Paste a link.

2

We read it

AI runs the geometry and Moldflow. the Shifu reads what software can't.

3

You get a plan

A written report with ranked fixes — evidence first, in plain English.

4

It runs

Your floor executes. Two free re-diagnosis rounds if it doesn't land.

Where we stand

Diagnosis first. Zero pressure.

We earn your trust by fixing the mold you have — not by pushing a new one. If a rebuild turns out to be the right answer, we'll tell you honestly. And we'll be ready.

Deliverables, timelines & after-care policy →
A real name, a real face. One master, 40 years, his name on the work.
Evidence before payment. Free DFM check first — judge us by the work.
US-based payment. Written plans. Two free re-diagnosis rounds.

Send us your part. Get answers.

Upload a STEP file — free manufacturability check, replied within one business day.

Get My Free DFM Check →

Reviewed by hand. No cost, no obligation.