November 2, 2018

Precious Plastic

Bradford Johnson

First month with Precious Plastic!

Hello! I’ve spent 1 month in Eindhoven meaning I’m long overdue for an update on my time here.

July 18, 2017

Experience, Robotics

Bradford Johnson

Kinematic Analysis of Robotic Arm With 6 Joints

The most recent project in my Udacity nanodegree gave me a 6 jointed robot arm and a desired path for the robot's gripper. My job was to perform the inverse kinematic analysis to calculate the joint positions that will move the gripper along the requested path. After learning the forward kinematics and doing a full geometric analysis for the inverse kinematics, my robot arm was able to follow the paths it received with negligible error.

Bradford Johnson

May 18, 2016

Behringer DDM4000 heat sink repair

Bradford Johnson

May 18, 2016

I figured these signs pointed to an overheating issue on whatever cheap electronics Behringer had thrown in the box. Opening up the box revealed a circuit board covered in what I hope was only flux residue. I also found two processors big enough for a basic 20x20 mm heat sink.