Gate 4 - Group 4

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=='''Gate 4: Product Explanation'''==
 +
 
 +
==='''Purpose'''===
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 +
Nearing the end of our course project, the next step in our product-analyzing process is the reassembly of our drill. We documented each step as we put the product back together, and presented the steps in a way such that anybody could follow its directions to reassemble the drill. Afterwards we were able to make a few detailed conclusions about our product, including a discussion about a major mechanism found inside, and recommendations for design revisions at a system level.
 +
 
 +
==='''Project Management: Critical Project Review'''===
 +
 
 +
==='''Product Archaeology: Reassembly'''===
 +
 
 +
{| border="10" style="text-align:left;"
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|+ '''Difficulty Scale'''
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|'''Difficulty Level:'''
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|'''Required tools and time:'''
 +
|-
 +
|1
 +
|No tools, takes a short amount of time, quite intuitive.
 +
|-
 +
|2
 +
|No tools, takes a decent amount of time, less intuitive.
 +
|-
 +
|3
 +
|Requires a tool, takes a short amount of time, quite intuitive.
 +
|-
 +
|4
 +
|Requires a tool, takes a decent amount of time, less intuitive.
 +
|-
 +
|}
 +
 
 +
{|border="10" cellpadding="10"
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|-
 +
! scope="col" | Step #
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! scope="col" | Descriptive Action
 +
! scope="col" | Tool Used (If Any)
 +
! scope="col" | Difficulty
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! scope="col" | Image Guide
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|-
 +
|1
 +
|Remove detachable support side handle from tool, by twisting handle in a counter-clockwise motion to loosen its grip.
 +
|none
 +
|1
 +
|[[File:step 1 g4.jpg|thumb]]
 +
|-
 +
|2
 +
|Continue twisting the handle until it completely unscrews and seperates from the lag bolt/clamp.
 +
|none
 +
|1
 +
|[[File:step 2 g4.jpg|thumb]]
 +
|-
 +
|3
 +
|Remove the 1/2" x 4" lag bolt from the circular clamp by simply sliding it out.
 +
|none
 +
|1
 +
|[[File:step 3 g4.jpg|thumb]]
 +
|-
 +
|4
 +
|Remove three (3) screws from back of drill handle.
 +
|Torx t-15 screwdriver
 +
|3
 +
|[[File:step 4 g4.jpg|thumb]]
 +
|-
 +
|5
 +
|Remove the rear casing from the back of the handle.
 +
|none
 +
|1
 +
|[[File:step 5 g4.jpg|thumb]]
 +
|-
 +
|6
 +
|Remove front two (2) screws from the top of the gearbox casing. (front end of drill)
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|Torx t-15 screwdriver
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|3
 +
|[[File:step 6 g4.jpg|thumb]]
 +
|-
 +
|7
 +
|Remove front screw from the bottom of the gearbox casing. (front end of drill)
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|Torx t-15 screwdriver
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|3
 +
|[[File:step 7 g4.jpg|thumb]]
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|-
 +
|8
 +
|Slide the chuck* assembly and gearbox casing off from the front end, revealing the gearbox assembly.
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|none
 +
|2
 +
|[[File:step 8 g4.jpg|thumb]]
 +
|-
 +
|9
 +
|Remove the gasket ("o-ring") from the gearbox assembly.
 +
|none
 +
|1
 +
|[[File:step 9 g4.jpg|thumb]]
 +
|-
 +
|10
 +
|Remove relatively short-lengthed shaft (has two gears located on it) from the gearbox assembly.
 +
|none
 +
|1
 +
|[[File:step 10 g4.jpg|thumb]]
 +
|-
 +
|11
 +
|Remove the single ball-bearing from the rear end of the shaft removed in the previous step. (step 10)
 +
|none
 +
|1
 +
|[[File:step 11 g4.jpg|thumb]]
 +
|-
 +
|12
 +
|Slide the Hammer/Drill operation selector switch out from the top of the drill.
 +
|none
 +
|1
 +
|[[File:step 12 g4.jpg|thumb]]
 +
|-
 +
|13
 +
|Remove two (2) screws from the rear end motor.
 +
|Torx t-10 screwdriver
 +
|4
 +
|[[File:step 13 g4.jpg|thumb]]
 +
|-
 +
|14
 +
|Remove two (2) outside parts of the motor assembly.
 +
|none
 +
|2
 +
|[[File:step 14 g4.jpg|thumb]]
 +
|-
 +
|15
 +
|Slide the trigger assembly/electrical power cord out from the handle casing.
 +
|none
 +
|1
 +
|[[File:step 15 g4.jpg|thumb]]
 +
|-
 +
|16
 +
|Remove the positive (+) and negative (-) wires for the motor.
 +
|none
 +
|2
 +
|[[File:step 16 g4.jpg|thumb]]
 +
|-
 +
|17
 +
|Remove the positive (+) and negative (-) wires for rear motor power terminals. (reverse)
 +
|none
 +
|2
 +
|[[File:step 17 g4.jpg|thumb]]
 +
|-
 +
|18
 +
|Remove the trigger assembly/ electrical power cord from the entire assembly.
 +
|none
 +
|1
 +
|[[File:step 18 g4.jpg|thumb]]
 +
|-
 +
|19
 +
|Slide the motor shaft out from the motor assembly.
 +
|none
 +
|2
 +
|[[File:step 19 g4.jpg|thumb]]
 +
|-
 +
|20
 +
|Remove the black plastic collar from the frontside of the motor housing.
 +
|none
 +
|2
 +
|[[File:step 20 g4.jpg|thumb]]
 +
|-
 +
|21
 +
|Remove the two (2) coarse-thread screws from the inside of the motor housing.
 +
|Torx t-10 screwdriver
 +
|3
 +
|[[File:step 21 g4.jpg|thumb]]
 +
|-
 +
|22
 +
|Remove the outside of the motor from the casing.
 +
|none
 +
|2
 +
|[[File:step 22 g4.jpg|thumb]]
 +
|}
 +
 
 +
==='''Product Archaeology: Mechanisms'''===
 +
 
 +
==='''Product Archaeology: Design Revisions'''===

Revision as of 12:46, 25 November 2012

Contents

Gate 4: Product Explanation

Purpose

Nearing the end of our course project, the next step in our product-analyzing process is the reassembly of our drill. We documented each step as we put the product back together, and presented the steps in a way such that anybody could follow its directions to reassemble the drill. Afterwards we were able to make a few detailed conclusions about our product, including a discussion about a major mechanism found inside, and recommendations for design revisions at a system level.

Project Management: Critical Project Review

Product Archaeology: Reassembly

Difficulty Scale
Difficulty Level: Required tools and time:
1 No tools, takes a short amount of time, quite intuitive.
2 No tools, takes a decent amount of time, less intuitive.
3 Requires a tool, takes a short amount of time, quite intuitive.
4 Requires a tool, takes a decent amount of time, less intuitive.
Step # Descriptive Action Tool Used (If Any) Difficulty Image Guide
1 Remove detachable support side handle from tool, by twisting handle in a counter-clockwise motion to loosen its grip. none 1
Step 1 g4.jpg
2 Continue twisting the handle until it completely unscrews and seperates from the lag bolt/clamp. none 1
Step 2 g4.jpg
3 Remove the 1/2" x 4" lag bolt from the circular clamp by simply sliding it out. none 1
Step 3 g4.jpg
4 Remove three (3) screws from back of drill handle. Torx t-15 screwdriver 3
Step 4 g4.jpg
5 Remove the rear casing from the back of the handle. none 1
Step 5 g4.jpg
6 Remove front two (2) screws from the top of the gearbox casing. (front end of drill) Torx t-15 screwdriver 3
Step 6 g4.jpg
7 Remove front screw from the bottom of the gearbox casing. (front end of drill) Torx t-15 screwdriver 3
Step 7 g4.jpg
8 Slide the chuck* assembly and gearbox casing off from the front end, revealing the gearbox assembly. none 2
Step 8 g4.jpg
9 Remove the gasket ("o-ring") from the gearbox assembly. none 1
Step 9 g4.jpg
10 Remove relatively short-lengthed shaft (has two gears located on it) from the gearbox assembly. none 1
Step 10 g4.jpg
11 Remove the single ball-bearing from the rear end of the shaft removed in the previous step. (step 10) none 1
Step 11 g4.jpg
12 Slide the Hammer/Drill operation selector switch out from the top of the drill. none 1
Step 12 g4.jpg
13 Remove two (2) screws from the rear end motor. Torx t-10 screwdriver 4
Step 13 g4.jpg
14 Remove two (2) outside parts of the motor assembly. none 2
Step 14 g4.jpg
15 Slide the trigger assembly/electrical power cord out from the handle casing. none 1
Step 15 g4.jpg
16 Remove the positive (+) and negative (-) wires for the motor. none 2
Step 16 g4.jpg
17 Remove the positive (+) and negative (-) wires for rear motor power terminals. (reverse) none 2
Step 17 g4.jpg
18 Remove the trigger assembly/ electrical power cord from the entire assembly. none 1
Step 18 g4.jpg
19 Slide the motor shaft out from the motor assembly. none 2
Step 19 g4.jpg
20 Remove the black plastic collar from the frontside of the motor housing. none 2
Step 20 g4.jpg
21 Remove the two (2) coarse-thread screws from the inside of the motor housing. Torx t-10 screwdriver 3
Step 21 g4.jpg
22 Remove the outside of the motor from the casing. none 2
Step 22 g4.jpg

Product Archaeology: Mechanisms

Product Archaeology: Design Revisions

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