Pathfinder Generation #5

Auxiliary Panel Trade-Off Study

By: Adolfo Jimenez (Manufacturing) Verified By: Jordan Smallwood (PM) Introduction Figure 1: Top View of Solar Panel Structure One of the requirements for the pathfinder project is that the robot should be able to enter and exit a cocoon state via user input in the Arxterra app. This feature is reminiscent of the original Pathfinder […]

Ultrasonic Field of View Test

By: Jordan Smallwood (Project Manager and Electronics & Control) Approved By: Miguel Garcia (Quality Assurance) Introduction In order to develop an object avoidance routine we needed to verify that the ultrasonic sensors would work for detecting objects. To verify the field of view a simple experiment was constructed that would determine the distance to an […]

BEAR-ings

By: Jordan Smallwood (Project Manager and Electronics & Control) Approved By: Miguel Garcia (Quality Assurance) Probably the coolest part in most mechatronic designs would have to be bearings. They’re simple but confusing and very amusing, at least for me. There are many different types of bearings in all different shapes, sizes, colors, and functionalities. The […]

6 Wheel Electronic Differential

By: Jordan Smallwood (Project Manager and Electronics & Control) Approved By: Miguel Garcia (Quality Assurance) Introduction Have you ever considered how a train makes a turn? Really try and think about it, it has two wheels on a track separated by a distance but when it turns it doesn’t fly off the track. It’s not […]

Pin Change Interrupts

By: Jordan Smallwood (Project Manager and Electronics & Control) Approved by: Miguel Garcia (Quality Assurance) Introduction If you think back to your days of EE 346 you’ll remember the daunting feeling of dealing with interrupts. While we barely skimmed the surface, they’re really not that troublesome. The thing to note is that there are two […]

Buck Converter Efficiency

By: Mohammad Yakoub (Mission, Systems, and Test) Verified By: Jordan Smallwood (Project Manager) Approved by: Miguel Garcia (Quality Assurance) A Buck converter is a DC-to-DC power converter which steps down voltage (while stepping up current) from its input to its output. Switching converters such as buck converters provide much greater power efficiency as DC-to-DC converters […]

Custom Commands – Bluetooth Communication

By: Jordan Smallwood (Project Manager) Approved by: Miguel Garcia (Quality Assurance) Introduction One of the many benefits of working with the Arxterra App is the ability to create custom commands and communicate with your robot over Bluetooth. Although many of the necessary commands have been predefined there is still plenty of room to create custom […]

Rocker-Bogie Suspension System

By: Adolfo Jimenez (Manufacturing) Verified By: Jordan Smallwood (Project Manager) Approved by: Miguel Garcia (Quality Assurance) Introduction: In order to mimic the suspension capabilities of the rovers sent to Mars by NASA, our rover will incorporate the same rocker bogie suspension system utilized by the Mars rovers to traverse an extreme desert-like terrain. This suspension […]

Pathfinder Preliminary Design Blog Post – Spring 2018

By: Jordan Smallwood (PM), Diane Kim (E&C), Mohammad Yakoub (MST), Adolfo Jimenez (Manufacturing) Approved by: Miguel Garcia (Quality Assurance) Project Overview By Jordan Smallwood Project Objective: The Pathfinder is a project that has been passed down from generation to generation. The originators built the chassis and original idea back in the fall semester of 2016. […]

Making A Turn

By: Jordan Smallwood (Project Manager) Approved by: Miguel Garcia (Quality Assurance) The pathfinder will be performing tank type turns, that is it will be pivoting about it’s center to adjust it’s orientation. This can be done by simply adjusting the direction of each of the wheel sets. For example, if you wanted to make a […]