Vol. I, No. 3 Charlottesville, Va. Late edition   Free

Albert Sein

All the things I've built, and the people I built them with.

Live
Aperture charging case designed around the shell Snack R07 packaged for a manufacturer's design review Ordo 1.0 on the App Store since August Celestica internship wraps: liquid metal TIMs tested on the TIMA5 Ordo Desktop printed in two parts on a Prusa MK4S Open to Summer 2027 internships and new-grad roles

Front page Profile

A product person who loves building things, and loves working with people even more

I study materials and systems engineering at UVA. So far I've shipped an app, designed a wearable and its charging case, packaged a phone-mounted timekeeper for a manufacturer's review, and printed a desk display.

I am doing an accelerated BS in Materials Science and an MEng in Systems Engineering, finishing in 2027 and 2028.

This summer I was a project management and thermal engineering intern at Celestica, working on next generation data center infrastructure for AI. Most of it was on the TIMA5, running conductivity tests on liquid metal thermal interface materials: thermal impedance, warpage, heat maps of where a package actually stays hot. It's slow work and I like it.

Ordo went live on the App Store this August. I designed it and used AI tools to build it, got it through review myself, and still ship updates most weeks.

Continued on A2: Aperture

Aperture, printed live from its CAD.Click to jam the press
A2HardwareAlbert Sein

Hardware Wearable

Aperture

A wearable for your mind. It rests in the groove behind your ear: a crescent of dark brushed aluminium on a soft silicone base. I worked on the mechanical design, the electronics integration and the charging case.

2026   Wearable   Fusion 360   KiCad

Shaped to the head.

The shell's face follows the curve of the head along its length, so it stays the same thickness from tip to tip instead of lifting off at the ends.

Electronics, folded to the curve.

The board is rigid-flex in three sections, each sitting tangent to the shell's curve and joined by short flex hinges. Steel rings soldered to it pass through the floor to meet the magnets in the base. Part positions come back from the KiCad layouts into the CAD, and every rebuild reruns the interference check.

One file, three test tracks.

Every dimension lives in one parameters file that rebuilds the drawings, the fit checks, the Fusion 360 model and both board outlines. The build and test plan runs three tracks side by side: build the first units, scan heads, and run bench and wear tests, with results feeding back into that file before anything is tooled.

The charging case.

I designed the case around the shell: a crescent base and a lid on a pin hinge. Magnets pull the shell into its cups, and it charges through the same steel rings that hold it to the base.

Its own board and battery.

Under the pocket sit the case's own board, cell and USB-C port. A Hall sensor watches the lid, and the contacts only switch on with the lid shut and a shell drawing current.

Drop it in, close the lid.

The shell settles into its cups, the lid swings shut on its pin hinge, and a magnet in the lid's front edge holds it closed while it charges.

Visit Aperture
A3HardwareAlbert Sein

Hardware Consumer device

Snack

A physical timekeeper that sits on the back of your phone. One click starts a Snack Break and blocks the apps you chose; a second click ends it, and the app keeps an honest record of where your time went.

2026   Consumer hardware   Fusion 360

Under 8 mm.

Revision R03 threw out the 9.8 mm stack and started clean at 64 by 78 by 7.6 mm. Every part had to fit a named volume after walls, corner radii, adhesive and battery swell, with 7.8 mm as a hard limit.

Two boards in 7.6 mm.

A main board with the USB-C port, a display board joined to it by a flex, the cell, the attachment ring and a deadfront glass, stacked inside the frame. A scripted audit checks 83 critical fits, down to 0.15 mm between the USB-C connector and its cage.

Ready for a manufacturer's review.

R07 is packaged for an OEM design-for-manufacture review: a BOM, a source ledger for every part, an interface net table, and a release checklist where nothing closes without an owner, an artifact, a date and an approver.

A4HardwareAlbert Sein

Hardware Desk display

Ordo Desktop

A desk display for Ordo, my calendar app. A hull, a base plate, and a screen set into the face.

Spring 2026   Fusion 360   PLA

Two prints and a screen.

The hull and the base plate print separately on a Prusa MK4S, about five hours between them at 0.3 and 0.2 mm layers.

Sized for a desk.

186 mm wide, 68 mm tall and 114 mm deep, with the base plate running out past the hull as a front ledge.

See Ordo

Briefs

Smaller builds

From the archive High school

Project Skyfall

A model rocket I designed in high school that steers with its motor. Two SG90 servos tilt a gimbal to point the thrust, at the tail of a 75 mm PE pipe airframe under a nose cone. This is the second prototype, about 54 cm long.

High school   Fusion 360   Prototype 2

Bottomless portafilter

The one I pull espresso with every morning, modeled to its exact dimensions around a 58 mm basket, with two locking lugs instead of three. I scaled it down to fit a two-inch cube for the print.

February 2026   MSE 2200

Topology optimization

A Ti-6Al-4V strut between two fixed platforms, optimized in Fusion 360 for stiffness to weight under a 5,000 N load, with a safety factor of about 3.45.

April 2026   MSE 2200

How I run projects

Op-ed

Gates, not opinions

On Snack, every unproven item is a release gate. A line on the checklist closes only with an owner, an artifact, a date and an approver; a render, a quote or a verbal yes doesn't count.

One source of truth

On Aperture, the drawings, the fit checks, the Fusion 360 model and the board outlines all rebuild from one parameters file, so a change can't drift between documents.

Parallel tracks

Prototype builds, head scans, and bench and wear tests run side by side, and their results feed back into the design before anything is tooled.

People and schedules

At Celestica I did project management on thermal interface material testing for AI data center hardware, and led four interns building LLM agents for market research and operations.

"A render, a quote or a verbal yes doesn't count."On closing a release gate

Classifieds

Positions held

Celestica

Summer 2026   San Jose

Project management and thermal engineering intern, working on next generation data center infrastructure for AI. I tested thermal interface materials for cooling, and I led four interns building LLM agents for market research and ops.

Ordo ↗

2026 to now

An iOS and web app built for people who hate how inconvenient calendars are. 1.0 shipped to the App Store in August 2026.

Ji Ma Lab, UVA

2025 to 26

Additive manufacturing research. I laser melted simulated lunar regolith and worked out which machine settings produced which phases, then modeled the cooling rates behind them.

Setty & Associates

2024

Mechanical engineering intern. CFD and Revit models for the HVAC systems in a dozen or so office and school buildings.

Tools of the trade

Listings

Design and simulationFusion 360, SolidWorks, CFD, Revit, AutoCAD, and 3D printing on a Prusa MK4S.

ElectronicsElectronics integration and packaging, KiCad, rigid-flex boards, Arduino and sensor integration.

Project managementRelease checklists and gates, BOMs and source ledgers, build and test plans, DFM reviews, leading small teams.

CharacterizationSEM, EDS, XRD, light microscopy, hardness and tensile testing, selective laser melting, composite layup.

DataDoE, ANOVA, Minitab, process modeling.

SoftwareI use AI tools to write code, and to bring design ideas or app ideas I have to life. Have worked with TypeScript, React Native, and Swift.

Letters

Write to me

Hiring for a team that builds things? I'd like to hear about it.