Using a Laser Cut Strain Gauge to measure how much energy and bend we're putting into the material.

Strain Gauge Measuring Bend Energy

General Box Structure of our Window Washing robot. This will provide the general framework for our Robot.

Window Washing Robot Box Structure

Dimensioning various components on AutoCAD using a digital caliper. Currently designing the bracket for our Eraser.

Dimensioning Components in AutoCAD

Implementing a linear slide so we can introduce the eraser to the surface of the board with various pressures.

Linear Slide for Eraser Deployment

Lots of calculus involved to determine variables we needed to measure and coefficients we would need to use.

Calculus for Sensor Coefficients

AutoCAD Drawing of what the proposed eraser bracket will look like. Simple, lightweight, conservative on plastic, and functional.

AutoCAD Drawing of Eraser Bracket

Testing the fit, deployment, pressure applied to the wall, and observing any problems.

Testing Fit, Deployment, and Pressure

Installing Debounce Circuits using Resistors and Capacitors. We dialed in potentiometers for exact resistances.

Debounce Circuits with Potentiometers

We had to incorporate one four-bar mechanism, so we implemented it on our Eraser Bracket - which can be seen in the lower position of the rotation. This complex motion helps it with cleaning as well.

Four-Bar Mechanism on Eraser Bracket

Side profile of where we mounted the Arduino Microcontroller and weighing in the robot to see if it is legal for competition.

Arduino Mounted, Weighing for Competition