Mildly dangerous with a wrench

Caleb Ho

obsessed with robots, elegant design, moving fast, and the occasional ridiculous idea


PROJECTS

Grocery Portal

  • Designed, built, and programmed a self-serve curbside pickup prototype

  • Created a simulator to see how a fleet would work in a parking lot

  • Trained a binary classifier for tote empty detection using synthetic data generated with Blender

  • Programmed in Python and C++

Pipedream Labs

Wait 3-5 seconds for images to load

Trailer Unloader End of Arm Tool

  • Custom suction cup manifold for zone control

  • Custom conjugate cam to control the 2-axis motion with a single servo

  • Pneumatic guide-rails with a proportional valve for variable control

  • Complex conveyor routing (15 bends hidden)

  • Sensing a/ Electronics includes 2 lidars, 3 servos, and laser rangefinders

Bastian Solutions R&D

Cam-based Gearbox

Instead of using rotating gears, I had geared "feet" that walked along an inner gear, actuated by a rotating cam. With this method, I could achieve ratios of 100:1 in a single stage with zero backlash.It was very loud and not very practical, but it was a fun exercise that gave me a really good understanding of cams.

Motus Labs

Telepresence Robot

  • Created a telepresence robot that communicates through webRTC and ROS2

  • Can be controlled by anyone with just a link, achieved 120 ms control latency between Austin and DC

  • Designed custom capstan drive for tablet gimbal

Personal Project

Wait 3-5 seconds for images to load

AMR Dynamometer

  • Used for testing missions on AMR

  • Designed and built up machine and control cabinet

  • Controlled resisting torque through servos via Ethercat

  • Programmed with Python/C++

Pipedream Labs

Construction plotter

  • Construction workers use chalk lines to plot the layout of their building. With a buddy, designed and programmed a collab robot to automate this process.

Personal Project

Autonomous Mobile Base (WIP)

  • Designed and built an AGV base for testing outdoor localization with a 3D camera

  • 4 m/s max speed w/ a 200 lb payload

  • ROS2 stack

Personal Project

Zero-backlash High Ratio Gearbox

  • Led a team of 3 total engineers and 1 contractor

  • Created the base design that the rest of the product line would base off of

  • Wrote scripts to create custom geometry and parse test data

  • FEA and Motion simulation

Motus Labs

Gearbox Testbeds

  • Positional accuracy

  • Load testing misalignment coupling dispacks

  • Heavy load and life testing

Motus Labs

Fascia and end-effector design

  • Designs debuted at CES!

  • 3D printed with Markforge

Haddington Dynamics