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Whether it's the linear algebra behind robotics, the psychology of running a family business, or the polymer science at my day job, I optimize for understanding everything from the ground up.
I've always thought college wasn't worth it—you can learn almost anything online for free and faster. But I decided to go for it, earning both bachelor's and master's degrees in Mechanical Engineering from Ohio State.
I got hooked on investing back in high school during a finance class, where I started tracking tech companies like Tesla, Nvidia, and Google. That early start paid off. It helped me buy a rental property during college.
Hello fellow journeymen,
— Brian Lesko (@TheBrianLesko) March 4, 2025
This weekend, I brushed up on my CAD skills and designed a compact planetary gearbox for 4006 series brushless DC motors. The entire assembly, including the motor, stands at just 4cm tall and delivers an 8:1 gearing ratio for higher torque and finer… pic.twitter.com/O8TQkytnee
Greetings fellow journeymen,
— Brian Lesko (@TheBrianLesko) March 18, 2025
This week, I jumped back into CAD to design a harmonic gear reducer to fit onto the planetary gearbox I made recently. Like last time, the box is designed for 4006 series brushless DC motors, and with the extra reduction jumping twenty fold to… pic.twitter.com/i4V8NagPRg
I had time to print the split ring assembly and chuck it on this drill too. The drill is way too slow for this gearbox.. only 1650rpm, so it took over 30 seconds to do a rotation pic.twitter.com/6vaxhQ12Dd
— Brian Lesko (@TheBrianLesko) March 18, 2025
Fellow Journeymen! This week, I revisited the compact planetary gearbox I designed last weekend. This segment, just 13mm tall, achieves an 8:1 gear ratio. Metal gears are coming soon pic.twitter.com/WzKWhIahUz
— Brian Lesko (@TheBrianLesko) March 11, 2025
ROBOTICS JOURNEYMAN BLESKO REPORTING IN
— Brian Lesko (@TheBrianLesko) February 25, 2025
Massively reduced the turning radius of my wheeled robot thanks to the addition of four wheel steering.
Im using two metal gear servos and a CNC'd fixture bolted to the back bumper. The fit on this fixture is so tight that I didnt feel… pic.twitter.com/7P4DAX5yI4
The simplest robot is just two joints. https://t.co/QJwZ8jq0am pic.twitter.com/ghrExD3kF5
— Brian Lesko (@TheBrianLesko) November 20, 2024
ROBOTICS JOURNEYMEN!
— Brian Lesko (@TheBrianLesko) November 25, 2024
This is my wheeled robot. It will drive itself using the power of a raspberry pi and microcontroller. My first goal is an autonomous steering program.
This week I implemented the depth-pro model released by apple. The idea is to use depth-pro to label video… pic.twitter.com/vIrM6K4SkP
Watch this fast-paced AutoCAD Timelapse where I design a floorplan to renovate a historic 1920's duplex by adding a bathroom in the existing kitchen space. pic.twitter.com/FBnuKyQ8WU
— Brian Lesko (@TheBrianLesko) March 16, 2025
What is your estimate on this remodel?
— Brian Lesko (@TheBrianLesko) February 22, 2025
- House is 42 feet in length 14 feet wide.
- Ohio pic.twitter.com/GIGkZpq3oE
Completed the first-floor layout of my duplex near Ohio State University. This place has great potential as a long-term rental property. Meanwhile, I'll renovate it myself, possibly adding a bathroom or bedroom by reconfiguring the kitchen. https://t.co/g0SEAPkywS pic.twitter.com/af5ng3IA7o
— Brian Lesko (@TheBrianLesko) March 16, 2025
Updated my landing page for rental property applications this morning pic.twitter.com/ibeNDzRONr
— Brian Lesko (@TheBrianLesko) February 22, 2025
111 simulated vehicles accelerating or braking. Here's the error in each LTI approximation.
— Brian Lesko (@TheBrianLesko) August 10, 2023
I'll use the models for quick and accurate longitudinal velocity control at Ohio State.
Next steps are to automatically interpolate LTI parameters. 🚗🚗🚗
Check out my GitHub portfolio… pic.twitter.com/hv6cixGA8M
View's great from the top of the #kaggle leaderboard. #WishYouWereHere https://t.co/Dndnk3AFYU
— Brian Lesko (@TheBrianLesko) April 25, 2023
Floor 2. It's so over https://t.co/g0SEAPkywS pic.twitter.com/3GfHsu9TNC
— Brian Lesko (@TheBrianLesko) March 23, 2025
Hello fellow robotics enthusiasts,
— Brian Lesko (@TheBrianLesko) March 25, 2025
I spent the afternoon in CAD designing a servo actuated finger for use in a human-like hand. The gear reduction involved allows for a 2:1 increase in force and mimics the range of a human finger joint, about 90 degrees. https://t.co/opJfY0gdRy pic.twitter.com/y4vf5oGZTS
Hello journeymen!
— Brian Lesko (@TheBrianLesko) April 1, 2025
Building on last week's work, I solved the fingertip actuation problem by using a rigid link between the proximal and distal segments, which eliminates the need for an additional servo. These linkages could be made flexible in the future to better mimic the… pic.twitter.com/HLOPwJ1hXQ
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