l3 communications reverse engineering anish and jacobo
TRANSCRIPT
L3 Communications
Reverse Engineering
Presented by Anish Tailor
and Jacob Wilson
Constraints
Certain rules we must abide by
1. Alter the original testing rack, but without changing size and overall design.
2. The timer inputs must not be altered.
3. The structure must support itself.
4. Materials that have a low melting or freezing point cannot be used.
Problem and Design Statement
To Develop a new testing racks to hold timers. This rack must go through any environment the timers would go through. L3 Avionics would put this rack into a testing chamber to see if the structure and timers and withstand the environmental forces.
Target Consumer and Client Co. would be L3 Communications.
Design Statement: To design, model and build a testing rack which holds timers through contrasting temperatures and physical movements.
Problems found
Main Problems
Solutions
Ideas
Material Hardness
Sturdiness Weight Longevity Safety
TotalsIdea #1
4 2 2 2 3 13
Idea #2
1 3 2 1 3 10
Idea #3
3 3 3 3 3 15
Idea #4
2 2 1 4 2 11
1 2 3 4Material Hardness
The material will chip and break easily.
The material has many spots that can fracture, but still retains some of the structure after force has been applied.
The material can withstand much outside force, but can chip or break in small spots.
The material of the structure can experience much force and not break.
Sturdiness The structure will fall multiple times with consistent outside forces.
The structure cannot stand too long with consistent outside forces.
The structure can withstand much of outside forces, but will fall if too much force is applied.
The structure can withstand much movement without falling.
Weight The structure would be too heavy for a person to carry for more than 2 minutes.
The structure is somewhat heavy and cannot be held for too long.
The structure is somewhat light weight and bearable to carry.
The structure is light weight and easy to carry.
Longevity The structure will need many fixes and will not last for a long period of time. The overall product will need replacing multiple times.
The structure will last a moderate amount of time and will need many fixes.
The structure will last a long period of time, but will require a few fixes over time.
The structure will last a long period of time before the need of a replacement.
safety The product has wires sticking out that are used to channel power. If there wires were touched by someone, the person operating could receive serious injuries.
The product has wires and edges that are not covered that may harm the user.
The product has certain edges that may harm the user.
The structure is all-around safe for the users and cannot harm the user if any way, shape or form.
Chosen Idea The proposed structure would contain a handle on
the top and everything will acquire a new material scheme of Titanium.
The steel base of the structure would be removed.
There will be a plastic sheet covering the wiring in the back of the structure that can slide in and out of place for easy access.
The thickness of the Railings will be reduced.
The Titanium is known for its excellent resistance to corrosion.
Final prototype of Chosen Idea
New Back
Assembly Chart Group Members:
Anish Tailor and Jacob Wilson
16-May-11
Part # Part Name
Quantity Dimensions Function
Material
Texture/
Finish
Interaction with other parts
General notes
1
back board
1
16.75" X 14.5" X .1" thick
protects wiresphenol
smooth
connected to main partnecessary, could be lighter
2 plastic plugs 99
.725" outer diameter X 1.126" inner diameter X 1.640" length x .127" thick inner
diameter indicator plugs inputed
in hereplastic dull
held in place by screws and panels
cannot remove
3
back hex screws (small) 4
5.26 cm X inner diameter 1.5cm, 2.64 cm outer diameter
holds back boardstee
l dull
connects back to main part
necessary, could be altered
4 handle 1
1.5" length X .25 thick X 6" width
carrying devicemetal
shiny/smoo
th
part of the top, carries the device
add another, change location
5horizontal
bars 9.25" length X 17" depth X 1" width plastic plug outlets are
on here
Garolite
shiny/smoo
th outlits are on them
change shape and material
6 top screws 2.2" diameter X .5" length X .1" diameter
connects the top stee
l
shiny/smoo
th
connects the top to the TN-2588
necessary
7connection
cord 170" length X 1.75" diameter allows it to be plugged
inplastic
dull/rough
provides power to the TN-2588
stays the same
8 plug 1N/A
allow electricity inplastic rigid
main source of powerstays the
same
9horizontal
panel wires 213" length X .03 diameter connect indicator
outletscopper shiny
allows electricity to flow horizontally
stays the same
10vertical
panel wires
162" length X .075" diameter connect panels and
outlitscopper shiny
allows electricity to flow vertically
stays the same
11 Plug screws 198
inner diameter .055" X length .25" X .21" outer diameter X .073" width
hold outlets instee
l shinyholds outlit onto panels Phillips
12handle screws 2
.286" inner diameter X .33" outer diameter X .115" length (top) X .626" width connects handle to the
topstee
l rusty
secures the handle to the top
change location
13
Metal sqaures with
inslits 4
1" length X 1" width X .5" thickholds the small metal bars to the back plate
Garolite
shiny/smoo
th
leaves a space between the small metal bars and the
back plate
stays the same
14 front screws 14
.235" inner diameter X .56" length X .451" outer diameter X .166" width
holds the small metal bars to the big metal
barsstee
l rusty
holds the small metal bars to the big metal
bars
stays the same
15small metal
bar 9
.25"length X 17" depth X 1" width, 0.618" diameter holes (11 each) in them, .9"
diameter holes (22 each .91 from larger holes)
holds the plugs
aluminum
shiny/smoo
th
it is attached to the big metal bars on the ends
stays the same
16 vertical bars 2
.5" length X 15.5" depth X 1" widthholds up the small metal
bars
Garolite
shiny/smoo
th
provides a space between the small metal bars and the
back plate
stays the same
17 hex screws 4
inner diameter .242" x inner length 1" .37 outer diameter x .25" outer length holds in the bottom and
top small metal bars to the big metal bars
steel rusty
secures the metal bars to the big metal bars
stays the same
18green back
screws 2
.187" inner diameter X 1" length X .35" outer diameter X .19" width
holds the structure up
aluminum dull
screws on to the base N/A
19green back
washer 2
inner diameter .215" X outer diameter .57" X thick .056"
secures the screw better
aluminum dull
underneath the screws N/A
20 handle plate 1.25"length X 17" depth X 1" width, 0.618" holds the structure
together
aluminum
smooth
handles are screwed on to it
N/A
Materials used in proposal
Steel Green structure surrounding the product and the nuts and bolts.
Aluminum Bars that create the rows and columns.
Epoxy Resin Slots for the timers to be placed in.
Phenolic Laminates Brown back sheet of structure.
Plastics
Ferrous Metals
Nonferrous Metals
Works Cited
http://www.lenntech.com/periodic/elements/ti.htm
http://www.roymech.co.uk/Useful_Tables/Matter/Titanium.html