Jae-Eun (Esther) Lim

jaeeunl@andrew.cmu.edu

I am a Junior, double majoring in Mechanical Engineering and Robotics. I am very passionate about building robots that can do cool stuff.

Pathfinder

Whenever you're lost, the Pathfinder can find your way back!

@jaeeunl, @leehsu, @nguan

Smart Ball

Did your ball fly over the fence? Just command it to return back.

@jaeeunl, @leehsu, @acedillo, @camin

Smart Ball 17 Jan 2017, 10:41 p.m. CST
Monday: Figure out how to attach the spring system, trigger and pendulum. CAD parts that need to be laser cut. Tuesday: Laser/machine cut parts. Assemble individual parts. Start wiring Arduino and motors. Edit CAD for trigger (increase radius to increase spring’s compressed length).
Smart Ball 19 Jan 2017, 12:33 p.m. CST
Wednesday: Laser cut larger trigger. Hardware. Test the spring system.
Smart Ball 19 Jan 2017, 11:21 p.m. CST
Thursday: Attach the trigger and spring system inside the ball. Test runs. Connect to blue tooth. Issues: 1) Balsa is too weak for a spring base. 2) Spring support rods are too short they get stuck to the edge of the bottom cylinders as springs compress. Solutions: 1) Use acrylic spring base. 2) Elongate the bottom cylinders so that the rods are already inside the cylinder when uncompressed.
Smart Ball 20 Jan 2017, 11:58 a.m. CST
Friday: Assemble everything together!