Katellen InstituteHong KongHKU iDendron

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Role twoMaking &
materials
Two tracks

Making & Materials Research

A child draws something, AI turns it into a 3D model, and a printer has to make it real. Two tracks, at the two ends of that sentence. Say which one is yours.

What we need

All majors are welcome — passion is what matters. Mechanical Engineering, Industrial Design and Materials Science are natural fits — and so is an obsessive maker from any discipline at all. These are:

  • Everyone — a current HKU student.
  • Both tracks — hands-on FDM printing experience. Not read about — done. Failed prints you can tell us about.

Track A — Model generation & print-readiness · our primary need

Find out what actually fails.

Take real children's drawings through our software and measure, honestly, how many come out genuinely printable. Catalogue every failure mode: non-manifold geometry, overhangs with no support, walls thinner than the nozzle, the thin part that would snap when a ten-year-old drops it.

Close the gap between a file and an object.

Print profiles, orientation, supports, scale defaults — the difference between "it downloaded" and "a child is holding it."

Warn the child before they print.

In words they understand, before the hours of printing rather than after.

Your first project: the print-readiness benchmark — take thirty real children’s drawings through our software, verify each in the slicer, and catalogue every failure. Early projects run in software; physical printing grows as our Hong Kong print setup does — and your own machine experience is exactly what shapes it.

Track B — Materials & filament · for the materials tester

Specify a filament built for a classroom.

We intend to make a filament built for schools — and a classroom filament has to do things a hobbyist's does not: survive an unenclosed school printer, not smell in an unventilated room, print inside a school machine's temperature range, and not shatter when dropped.

Test it, don't survey it.

We are not looking for a market report. You would design the structured tests candidate materials must pass under real classroom conditions, run them as our print setup allows, and write a specification a factory can actually build to.

Your first project: test candidate filaments against real classroom conditions — heat, smell, drops, an unenclosed printer — and write the first specification.


What you get

What you get

Work that ships.

What you measure changes the product — and what you make printable is what children will one day hold in their hands.

Work you can show.

Every project ends with something real for your portfolio — and when your work appears in something we publish, you are credited.

A seat inside a real startup.

You will see how an early-stage deeptech company is actually built — the funding, the accelerators, the decisions, the parts nobody puts in a deck — by being part of building it.

A weekly working hour with the founders.

One standing hour every week with the founder and a co-founder who read Natural Sciences at Cambridge and spent forty years making physical things at scale — spent pushing your work forward.

Terms
Eligibility
Current HKU students
Format
Part-time · hybrid — onsite at HKU iDendron and work-from-home
Structure
One project at a time · each two to six months, sized to you and the work · each ends with something shipped
Batch 1
Projects between Oct 2026 and Mar 2027 — apply now
Batch 2
Feb – Jul 2027 — announced late January
First project
The trial — at its end, you and we choose the next one
Hours
Negotiable — around 8–10 per week, built around your timetable
Breaks
Planned up front — exams and holidays are expected, January is a natural pause
Rate
HK$80 per hour
Seats
Batch 1: one per role
You leave with
A shipped portfolio piece · a reference letter from the founder · credit when your work is published

You commit to a project, not to a year. Each project ends with something shipped, and at each end you and we choose the next one. Tell us your exam timetable and we will build the schedule together.


How to apply

Three steps.

  1. Read the manifesto — five minutes at katellen.org/manifesto. Everything we build follows from it — and no cover letter is needed, ever.
  2. Show us who you are — one email.

    Required — plain and short, written or spoken (a two-minute video or voice note counts exactly the same): ① Which track — A or B — and why it fits you. ② What you have printed — and one print that failed, and what went wrong. ③ One thing you would improve about any 3D-printing tool you have used — and how.

    Optional — and the part we most enjoy: what do you want to do, in this internship and after it? What are you passionate about, and what is the dream? How can Katellen help you get there? Tell it in whatever form tells it best — write a page or two, record a short video or a voice note, or show us something you have made. Effort, in any form, is what passion looks like.

    A CV is optional. Links to real work — a portfolio, GitHub, photos of things you built — are always welcome.
  3. Send it to join@katellen.org with the subject line “Making & Materials” — or just click that link and the subject fills itself in.

What happens next: we reply to every application, and we review them as they arrive — early applications get early answers. The process is short: your email, one conversation with the founder at HKU iDendron — where you see both prototypes, live — and a clear answer. Batch 1 interviews run through September; first projects start October 2026.