B.S.  Electrical  Engineering,  Mechatronics  Minor  Montana  State  University  Expected  Comple7on:  Spring  2016  

CHRIS  ANTLE  ENGINEERING  DESIGN  

About  

Creation and design have been an integral part of my life, from

snapping together Legos to restoring vintage motorcycles. My

continuous curiosity prompted my pursuit of a degree in Electrical

Engineering, with a minor in Mechatronics.

The result is a thorough understanding of electrical and mechanical

systems, their interactions, and the necessary means to bring a

design to life. This portfolio provides a summary of my projects,

academic and personal, highlighting their purpose and the design

process used. More information is available upon request.

Chris Antle

406.599.6472

Christopher.michael.antle@gmail.com

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Circuit Design

Spring/Fall 2014

 

Strain gage and audio system project circuits allowed for a rigorous study of analog circuit design. Each design was broken into discrete stages, such as an instrumentation amplifier,

comparator, and tone control. CAD and analysis software were used in conjunction with test equipment throughout the design

process.  

< Complete Strain Gage Circuit

4  

BJT audio amplifier circuit >

Robotic Vehicle

Summer 2014

 

The goal of the robotic vehicle was to develop a platform that allowed inspection of

difficult areas, while also providing utility functions (moving objects, etc.). The

complete vehicle and control station were developed to be mobile and robust.

Two ATmega2560 based microcontrollers were used as both a main control unit for

processing user input, as well as on-vehicle control. 2.4 GHz radio modules allow for

wireless control and give suitable range. The chassis provides independent drive and

suspension.

 

Testing finished project >

5  

6  

A graphical user interface provides a visual aid for power consumption and signal quality. All control of

the vehicle is done via a wireless PlayStation 3 controller.

A program flow diagram was developed to organize the communication between the control station and vehicle. A specialized data packet and protocol were

introduced for error checking and efficient data transfer.

< Control station user interface

< Program logic

Residential Hydroelectric System

Fall 2012

 

As part of a multidisciplinary undergraduate design course, the feasibility of a small-scale hydroelectric system was analyzed. As team leader, I coordinated the interface between systems. Conceptual sketches of possible

designs led to a decision matrix, which allowed for a quantitative approach to the

design choice.  

Decision matrix > 7  

!

!

Conceptual sketch >

8  

Once a design was chosen, the system architecture was developed. The design was broken down into

three discrete subsystems, which could be addressed by the team.

A prop design was developed, and computational fluid dynamics used for an approximation of torque. This figure, in conjunction with a specified generator, allowed for an expected output power figure to be

computed. An overall report addressing the feasibility of the design, test procedure, and cost analysis was

produced.  

< System architecture diagram

< CFD of turbine for torque approximation

Mining Equipment Grapple

Summer 2013

 

Developed for a mining company, the grapple was designed to lift large boulders

from the pit. As a summer internship project, I worked on a cross-discipline team to design, manufacture, and test the product. Robust

design and wear resistance were emphasized in design, due to extreme demands on the

product.  

< Finished product 9  

< Basic structure model

Component manufacturing drawing >

4.5005.156

6.211

14.313

3.500

13.313

3.745-12 X 0.930"

3.618-12 X 0.656"

0.063 X 45_

0.250 X 45_n 0.500 x THRU TO PERP. DRILLED HOLE(SEE NOTE)(SEE NOTE)(SEE NOTE)(SEE NOTE)

n 3.750

n 4.250

2.250

2 x 3/8-16 UNC x 1.500n 2.25 BOLT CIRCLE

2X 3/8-16 UNC x 1.250n 2.25 BOLT CIRCLE

n1.375SLOT x 0.300

n 1.375 x 1.250

4X 1/2-14 NPT x 1.150n 2.25 BOLT CIRCLE

n.500x 13.500 (1)

n.500 x 12.625 (2)

n.500 x 11.750 (3)

n.500 x 10.938 (4)

(1)

(3)

(4)

(2)

7.23.2013

DRAWN BY:

TITLE:PROPRIETARY AND CONFIDENTIALPROPRIETARY AND CONFIDENTIALPROPRIETARY AND CONFIDENTIALPROPRIETARY AND CONFIDENTIALTHE INFORMATION CONTAINED IN THIS DOCUMENT IS THE PROPERTYOF MMC INC. ANY REPRODUCTION OR USE WITHOUT WRITTEN PERMISSIONOF MMC INC IS PROHIBITED

MILD STEEL

ANTLE MMC INCMMC INCMMC INCMMC INC

3.001

MATERIAL:

SHAFTDATE:

UNLESS OTHERWISE SPECIFIED:UNLESS OTHERWISE SPECIFIED:UNLESS OTHERWISE SPECIFIED:UNLESS OTHERWISE SPECIFIED:DIMENSIONS ARE IN INCHESTOLERANCES: X.X = 0.1X.XX = 0.025X.XXX = 0.005

ZONE DATE

SHEET

DESCRIPTION

SCALE

REV

FSCM NO. REV

A

REVISIONS

DWG NO.SIZE

APPROVED

HOLES ALONG RIGHT END OF SHAFT ARE DRILLED 90 DEGREE FROM EACH ANOTHER IN FOLLOWING INCREMENTS FROM RIGHT END:(1) 0.925"(2) 1.7850"(3) 2.675"(4) 3.5325"

DISTANCE TO FLANGE ON WELDMENT (SEE ASSEMBLY)IS 11 7/8". MACHINE FLANGE TO 2 3/8" AFTER WEDLING

Vise Design and Build

Fall 2011  

The vise design and build project was an exercise in design for manufacturing. From a conceptual sketch, a CAD model was created

as well as manufacturing prints. Special emphasis was put on GD&T. Once the model was checked, the design was fabricated in the

machine shop using traditional mills and lathes. Once the project was built, it was tested and graded against the specified

tolerances.  

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CAD model >

Manufacturing print >

Finished design >

65’ Triumph TR6

Winter 2011

 

Over the 2011 winter, this 1965 Triumph TR6 was brought back to life. A complete engine overhaul/ restoration was performed, as well as many upgrades to the electrical system.

Chassis modifications were made for simplicity and weight savings. All fabrication, wiring, and paint was done in house (literally, I rebuilt the engine on my dining room table).

The  bike  won  “best  in  class”  at  the  Salt  Flat  Social  motorcycle  show  the  following  year.  

Completed bike >

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!