Transferring from Chabot to UC Berkeley

Robert MooreMay 5, 2014

Why Engineering?• Grew up around cars, always fascinated

with anything with an engine• Became interested in metal fabrication • Graduated from James Logan in 2002• Took welding and machining classes in

high school and at Chabot, as well as GE• Started at Math 55 at Chabot• Went to work as a machinist for 2 years

Path to Transferring• Decided to go back to school to pursue

Engineering• Started back at Chabot full time in Fall

2006• Worked ~20 hours / week while going to

school• Took 3 years to complete coursework at

Chabot

Chabot Class ScheduleFall 2006 Course No. Units Spring 2007 Course No. Units

History of California HIS 12 3 General College Chemistry Chem 1A 5

Pre-Calculus Mathematics MTH 20 5 Intro/Structured Progr in C++ CSCI 14 4

Introduction to Engineering ENGR 10 2 Engineering Design Graphics ENGR 22 3

      Calculus 1 MTH 1 5

           

  Total Units 10   Total Units 17

Fall 2007 Course No. Units Spring 2008 Course No. Units

Computational Methods for Engineers ENGR 25 3 Engineering Circuit Analysis ENGR 43 4

Calculus 2 MTH 2 5 Multivariable Calculus 3 MTH 3 5

General Physics 1 PHYS 4A 5 General Physics 2 PHYS 4B 5

           

  Total Units 13   Total Units 14

Fall 2008 Course No. Units Spring 2009 Course No. Units

Critical Readying & Composition ENGL 1A 3 Critical Thinking / Writing Lit ENGL 4 3

Engineering Mechanics - Statics ENGR 36 3 Engineering Materials ENGR 45 3

Elementary Linear Algebra MTH 6 3 Elementary Differential Equations MTH 4 3

General Physics 3 PHYS 4C 5 Speech Communication SPCH 1 3

      Fitness for Everyone 2 PHED 2FFE 1

  Total Units 14   Total Units 13

Final GPA: 3.52

Advice for Students• Work to learn all you can in your math

classes, math is essential in all future classes

• Take advantage of the help offered by professors

• Master study skills while at Chabot• Become skilled in Matlab

Differences between Chabot and Cal• Pace at Cal is twice as fast as Chabot• Large Classes• Test are harder and very time sensitive

Biggest Surprises:• Not everyone at Cal is a genius• A student that started at Cal doesn’t have

an advantage

Mechanical Engineering Curriculum

All can be completed at Chabot College

UC Berkeley ScheduleFall 2009 Course No. Units Spring 2010 Course No. Units

Thermodynamics ME 40 3 Advanced Engineering Design Graphics E128 3

Intro To Solid Mechanics ME C85 3 Engineering Mechanics 2 ME 104 3

Dynamic system Feedback Control ME 132 3 Fluid Mechanics ME 106 3

Environmental Economics ECON C3 4 Mechanical Behavior of Materials ME 108 4

Transitioning to cal EDU 198 1 Vehicle Dynamics and Control Systems ME 131 3

           

  Total Units 14   Total Units 16

Fall 2010 Course No. Units Spring 2011 Course No. Units

Computer Aided Mechanical Design ME 128 3 Mechatronics Design ME 102B 3

Heat Transfer ME 109 3 Mechanical Engineering Laboratory ME 107 3

Intro to Measuring systems for Mechatronics ME102A 4 Design of microprocessor-Based systems ME 135 4

Energy and Society 100 ER 100 4 Advanced Programming with MATLAB E 177 3

           

  Total Units 14   Total Units 13

Summer 2010 Course No. Units

Macro Economic Analysis ECON 100B 4

Electrical Tech for Engineers (circuits) EL ENG 100 4

  Total Units 8

GPA at graduation: 3.587

Student Groups at CAL• Super high Mileage

Vehicle

• CalSol

• FSAE

Senior Design Project• Project Goal:

– Build CNC plasma cutter table using existing hypertherm plasma cutter.

– Fulfill requirements for:• Mechatronics design

course (ME102B)• Microprocessor-based

design of mechanical systems (ME135)

CNC Plasma Cutter - requirements• Requirements

– Cut 4’ x 4’ sheet– Must be semi-portable– Cost not to exceed $2000– Maximum Cutting speed 385 in/min. – Positioning accuracy to 0.005”– Cutting tip speed must be held constant for best

cutting finish

CNC Plasma Cutter – Design • Gantry Design Chosen

– Provided minimum footprint for amount of travel.

– Linear bearings chosen as guide ways.

• Drive System– Rack and Pinion drive for X

and Y chosen. – Ball screw drive for Z axis.

CNC plasma cutter – build• All parts machined and

fabricated by team. • Steel Frame weldment

built at my shop. • CNC work done at

ProFAB

CNC plasma cutter - results• Project won best design

award for spring 2011.

Ekso Bionics (Formerly Berkeley Bionics)• First job out of CAL, hired

October 2011• Designed improvements for

Ekso robotic suit• Worked on grant funded by

DARPA for advanced hydraulic pump research

Hyd pump & test stand• Project Overview

– DARPA grant funded project to build low-noise high efficiency mobile hydraulic system.

– Worked with subcontractor to design hydraulic pump. All actuation designed in house.

• Project required a test stand to be designed to evaluate performance of new pumps versus existing technology.

Test Stand - Requirements• Test stand must run two pumps simultaneously• Must record enough data to calculate pump efficiency

( mechanical, volumetric and overall)• Must be easily adapted to various pumps• Hydraulic loading

– Constant load for efficiency experiments– Dynamic load to simulate leg actuation on HULC

device.

Test stand - design

• Measurements Required:– P1a, P2a, P1b, P2b -

Pressure– Qa, Qb – Flow rate– ω – Shaft speed– Τact – Input torque– Fluid Temperature– Displacement Position

Test stand - design• Breadboard platforms created to allow maximum

versatility. • Static load provided by needle valve flowing through a

flow-meter

• Features adjustable inertia as well as a separate damping cylinder to provide external loading.

Test stand - design• Dynamic load designed

to replicate inertia of leg from HULC.

• Inverted pendulum chosen as inertial load.

Test stand – results on existing pump• Existing gear pump results from test stand

ZEE.AERO• Hired November 2013• Working on Power and Propulsion team

From Gizmag.com

Any Questions?

• e-mail me any questions: robertwmoore17@gmail.com

Information:fsae.berkeley.edume.berkeley.educoe.berkeley.edu