Eagle PCB design

The goal to filter a given input voltage and turn it into a desired voltage output (range) was achieved by designing a circuit compromised of two op-amp buffers and two inverting summing amplifiers alongside other electric circuit components.

The circuit effectively takes in a varying voltage signal with a 30V range (blue sinusoid) and outputs a proportional voltage with a 5V range and a constant offset of 2.5V (green sinusoid) as can be seen in the simulation on the right.

Once the circuit schematic worked as expected I used EAGLE to create a through-hole designed PCB that can achieve this functionality.

Simulation

Circuit Schematic

PCB

Monorail Prototype

I created the motor-pulley mechanism that spins the top wheels to translate the system across the rope. I used the NEMA17 stepper motor with an GT2 Idler pulley and timing belt connecting in a triangular fashion with the other two idler pulleys on the wheels. This was a team project to demonstrate the functionality of a monorail.