I build for the love of creating.
Part.01
TAKTO ONE, an open-source hand exoskeleton. I designed and built it alone, end to end.
Twelve encoders read the finger joints where they bend. Eight motors in ten spool bays pull them back through elastic tendons. I designed its two circuit boards and wrote its firmware. The control loop runs on the device itself, not on a laptop.
Part.02
OpenPhysicsAI, an open-source physics lab for people and AI agents. I created it and maintain it. Every film below is one of its solvers at work.
Part.03
Aluminium, melted from powder by a laser, one thin layer at a time. At Hochschule Anhalt I worked as a research associate: I ran and maintained the metal printers and planned and ran the test builds.
The vase is imagined: a gyroid lattice that only a printer can build, drawn to show how a laser melts metal powder into a part, layer by layer.
Part.04
What I built on the way, from Medellín to Köthen, and what my part was in each. Where the originals were lost, they were rebuilt from the drawings.
04.1
My partThe classifiers, trained and tuned in Python.
A hyperspectral camera records each pixel as a spectrum of 92 narrow bands. I trained models to tell healthy tissue from diseased by that spectrum alone, from classical classifiers to neural networks. The best, a random forest, reached an F1 score of 0.934.
λ 400 nm
Drag along the spectrum to read one band. The tissue is drawn, not a patient's.
04.2
My partTeam lead of three students, and first author of the manuscript.
A low-cost gripper for training with a prosthesis, driven by muscle signals (EMG). Each finger is a five-bar linkage held by a spring, so one servo closes it and it wraps around whatever it meets. A burst of muscle activity past a threshold closes the hand, the next one opens it.
04.3
My partAll of it, alone. The design, the printed parts, the wiring, the PID code and the phone app.
set 92 mmball 20 mmservo 92.0°beam 0.0°
or drag the gold mark under the beam, as with my potentiometer
more Kp pulls harder, and it overshoots
more Ki closes the last gap, slowly
more Kd damps the swing
Tap the beam to push the ball. A reading out of range turns red and is thrown away, as in my code.
A servo tilts a beam, and the ball rolls. Two ultrasonic sensors find it, one at each end, and a PID loop I wrote by hand for an Arduino brings it back to where you set it. I built it alone during the 2020 quarantine to teach PID, with a phone app of my own for the set point and the gains.
The parts are drawn from my CAD files, and the beam is a simulation that starts from my gains.
04.4
My partWith one classmate: the design, the finite-element analysis and the build.
An eleven-lobed disc rolls inside a ring of twelve pins, so the output turns eleven times slower and far stronger. We modelled it, checked it with finite elements, and built it.
04.5
My partThe whole design, written up as my paper during my internship there.
The marble shop's drywall carts, converted to drive by radio. My design lets one person steer 500 lb of slabs with one hand from up to 500 m away. I checked the frame with finite elements, chose the motors and the chain drive, laid out the controls as a state machine, and kept every part buildable with the shop's own tools, for about 640 USD.
04.6
My partThe architecture, designed and modelled in Revit.
A house with a garden on its roof. The wooden lattice along one side is also the way up. In the low evening sun it lays a grid of shadows across the white wall, and the water beside the long wooden walkways mirrors it.
Part.05
The universe is almost entirely empty.
We are the corner of it that woke up.
It took nearly fourteen billion years.
I try to make things worth the wait.
