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Engineering Portfolio Myles Lynch University of Miami BSME 2017

Myles Lynch Engineering portfolio

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Page 1: Myles Lynch Engineering portfolio

Engineering PortfolioMyles Lynch

University of MiamiBSME 2017

Page 2: Myles Lynch Engineering portfolio

About me

I was born near Boston, MA however most of my childhood was spent in New Hampshire

Currently I am a junior studying Mechanical Engineering at the University of Miami

Extremely passionate about product design/engineering My ideal job consists of tackling difficult problems that will make life

easier and/or more enjoyable for the general population Ideally, throughout my career I will be working on multiple different

types of products (i.e. consumer goods, HVAC, machine design, etc.)

Page 3: Myles Lynch Engineering portfolio

Major Projects

Slides 4-6: Betech Assembly Line Upgrade Slides 6-8: MAE 341 Final Design Project Slides 8-10: NASA Robotic Mining Competition Robot Slides 10-12: MAE 309 Design Project Slides 12-14: Personal Project

Page 4: Myles Lynch Engineering portfolio

Betech Assembly Line Upgrade OverviewJuly-August 2015 Watts Water Technologies Internship Problem: Previous “feeder bowl” mechanism (example image below,

on left side) for delivering gaskets to the dial would continuously become clogged, requiring the assembly process to be stopped until an operator could travel over to the machine and correct it. This caused excessive down time and was an annoyance to the employees.

Project: Design a new system (3D models shown below in center and to right) that could replace the old feeder bowl entirely. This new machine would need to be low maintenance, as well as operate with as few electrical components as possible.

Page 5: Myles Lynch Engineering portfolio

Betech Assembly Line Upgrade ChallengesJuly-August 2015 Watts Water Technologies Internship

Compressibility of gaskets cause inconsistent vertical positioning Design of a container for the gaskets that allows placement without

removal from packaging Space requirements Changing of gasket supply can’t interfere with the system Electrical components were to be limited as much as possible Sealing efficiency must be extremely high (missed seals cannot occur

under normal operation)

Page 6: Myles Lynch Engineering portfolio

Betech Assembly Line Upgrade DesignJuly-August 2015 Watts Water Technologies Internship

A system of pneumatic devices that remove gaskets from their packaging, bring them to their required location on the dial, and then release them. A pneumatic cylinder lifts the gaskets up to the required height, which is where a second pneumatic cylinder would lower a custom designed head to meet the top gasket. A pressure regulator would then create a vacuum seal between the head and the gasket, so that when the second cylinder retracts, a gasket is pulled with it. A third pneumatic cylinder then moved the gasket over to the dial, where the second cylinder would extend again and the vacuum seal would be removed, placing the gasket in its seat on the dial. This would repeat until the gasket supply was too low for the head to reach and create a seal. Then the operator would replace the exhausted supply with a new package and the cycle would reset.

Page 7: Myles Lynch Engineering portfolio

MAE 341 Final Design Project OverviewNovember-December 2015 Mechanical Design Course Project: Design and prototype a system containing two of the

following three mechanisms: four-bar linkage, gear train, and cam-shaft

Idea: It was decided to create a device that would automatically raise the blinds of a standard window. Inspiration came for this project from an idea of synchronizing a machine to an alarm clock app for a smartphone, where when the alarm sounds, the device will allow more light into the room to aid the user with awakening.

Page 8: Myles Lynch Engineering portfolio

MAE 341 Final Design Project ChallengesNovember-December 2015 Mechanical Design Course

Limited dimensional capabilities of 3D printer Self-locking system needed to prevent stress on the motor Precise timing needed to prevent follower/link interference

Page 9: Myles Lynch Engineering portfolio

MAE 341 Final Design Project DesignNovember-December 2015 Mechanical Design Course The design consists of a compound gear train, a four-bar linkage, and a cam

system A 90 degree servo motor (Replacing the handle in both the model and

prototype) rotates both the input link and first gear. The input link moves with similar motion to the output link which pulls down the strings of the blinds. This opens the blinds, allowing light to enter the room. The first gear, when turned, begins the motion of the first set of gears. The first set of gears consists of three spur gears, and has an overall 1:1 gear ratio. The second set of gears consists of two bevel gears that also have a 1:1 gear ratio. The bevel gears change the axis of rotation, allowing the gear to turn the shaft and therefore the cam as well. The follower, when the motor first starts turning, is fully retracted. As the cam rotates, the follower is pushed out ending in the locked position. When the blinds try to close back down the output link will be pulled up and will be stopped and held in place by the follower. The follower is not spring loaded, and therefore will not automatically return to the initial position as this would remove the designed interference.

Future designs would incorporate a wireless connection to a smartphone alarm clock application, allowing the synchronization of the alarm and the entering light.

Page 10: Myles Lynch Engineering portfolio

NASA Robotic Mining Competition OverviewFebruary-May 2015 Students for the Exploration and Development of Space

Intercollegiate competition hosted by NASA at the Kennedy Space Center including 47 teams from all over the country

Project: Design a remote controlled or autonomous vehicle that will venture into a “mining area” and extract a replicate Martian soil. The vehicle will then return to the starting point and deposit the mined material in to a collection bin.

Goal: Design the lightest weight vehicle that can complete the task needed. More emphasis was placed on weight and efficiency in design than on total mass collected.

Page 11: Myles Lynch Engineering portfolio

NASA Robotic Mining Competition ChallengesFebruary-May 2015 Students for the Exploration and Development of Space Incorrect parts were ordered, requiring a nearly completely new

design with less than a month until the competition Initial lack of knowledge about electrical and computer systems Competition took place after the end of the semester, forcing us to

complete the project short-handed

Page 12: Myles Lynch Engineering portfolio

NASA Robotic Mining Competition DesignFebruary-May 2015 Students for the Exploration and Development of Space

Design consisted of five motors and two direct current linear actuators that were regulated by an Arduino UNO. Four of the motors powered their own wheel with the fifth motor turning a ten inch diameter auger bit. The auger bit was attached to the coupler of a four bar linkage. The coupler was the storage bin where the extracted soil was kept. The other two non-ground links of the four bar linkage were 30 inch stroke linear actuators. As the actuators extend and retract, the auger moves and tilts so that there are 3 distinct positions. The first of which being the start position, where the system was to be at the beginning of the competition so that it would meet the size constraints. The second and third position were respectively the digging and dumping positions. Without the programming ability to create autonomous function, the vehicle was controlled remotely.

This was the lightest weight design in the competition.