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Reverse Engineering
13
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Cooper Blocker
Counter Balance
Exploded view/ Isometric
A discrepancy we noticed in the mechanical was not so much a flaw with its build because it has had several decades of innovation but with a party that it leaves out. This party is the elderly and people with decease like parkinsons that make writing hard and nearly impossible. After research we found Kickstarter that can help with this problem. In it a simple counterbalance is placed on top so for every rock the pencil corrects it and remains straight
Overall Explosion
Mass Property Analysis
Tip
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small Mechanical
Pieces
Nose
Reverse Engineering 6.5
Mechanical Pencil
Spring
working drawing
Functional analysis
BY: Lucas Tonnesen
Preston Hawgoon
The primary function of a mechanical pencil is for the user to inscribe text in a reusable fashion compared to the standard Dixon Ticonderoga.
lead Stabilizer
Mechanism
Body
Lead Holder
Spring Makes it easier to write and moves the lead
Eraser--------------Allows user to erase
Pen Tube Holds all the components, gives the pencil an eye catchy design,and uniform shape
Mechanism Body-------holds the small mechanism piece
Grip----------------- Allows user to grip giving a more comforting writing experience
Copper blocker--------limits unwanted friction from micro grit
Body Tube----------------------- Holds LHT and mechanism body
Lead Holder Tube------------Contains the extra lead
pre -tip pen shaft----- centers the lead
Tip---------------------------------Part that stabilizes the piece of lead in use
Nose ----------------------------Holds Tip in place and mechanism body
Clip Allows -------------------user to place pen and houses the eraser holder
eraser holder-------------- holds eraser in place
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Structural analysis
Grip
Orthographic View
outer body
(cell)
eraser
Orthographic
Whole pencil
Principles: Unity (The Curves), Economy (No more than necessary), Proportion (All elements are sized for easy use for the customer), Rhythm
Elements: Curves, Very Geometric, Minimalist, Dark as to not attract attention, Smooth texture on body, coarse texture on grip
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Clip
Eraser holder
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