8/14/2019 MAE377 Project 07 Phase II.2

1/15

3

1 Introduction

Project 7s purpose is for us to find a flawed product and redesign it to fix theflaw. It is a precursor to designing a product from scratch. We had to propose 3redesigns and choose one of them to create in Pro/Engineer.

2 Problem Statement

Pick three commercially available products with flaws, highlight the flaws, andpropose a redesign to fix the flaw for each product. Then choose one , create it inPro/E and render it, animate it, draw the parts, etc.

3 Result

3.1 Flawed Products

ProductDescription

Pictures of Product Product Flaw Pictures FlawDescription

1 PersonalFlash light

The flashlightonly lights asmall circulararea in adirection,cannotprovide arealight

2 Stapler

used to putstaples inpaper

When

opening thestapler tostaple onlyone surface,the bottomhalf gets inthe way

8/14/2019 MAE377 Project 07 Phase II.2

2/15

4

3 Mini-FridgeUsed tokeep foodcold

The doorhinges havebecomeloose,causing the

door to angledown into thefloor and itmust be liftedto open andclose. Alsothe shelvescannot bemoved, onlyremoved

3.2 Redesign Proposals

Original Design New Design Description ofnew Design

1 The flashlightextends toreveal a cleartubular casingwhich makesthe light shine

out in alldirections,allowing theflashlight tolight up anarea

8/14/2019 MAE377 Project 07 Phase II.2

3/15

5

2 The bottomhalf attachesto the hingeby clippingon, so it can

be removed.This allowsthe top part tobe usedseparatelywhen staplingon surfaces

3 The bottom ofthe door is ona semicircleslider tosupport the

door evenwhen it isopened

8/14/2019 MAE377 Project 07 Phase II.2

4/15

6

3.3 Pro/E Parts

(a) (b)Figure 01: The body at different views, (a) and (b)

(a) (b)Figure 02: The battery at different views, (a) and (b)

8/14/2019 MAE377 Project 07 Phase II.2

5/15

7

(a) (b)Figure 03: The spring at different views, (a) and (b)

(a) (b)Figure 04: The lens at different views, (a) and (b)

(a) (b)Figure 05: The clear tube at different views, (a) and (b)

8/14/2019 MAE377 Project 07 Phase II.2

6/15

8

(a) (b)Figure 06: The head top at different views, (a) and (b)

(a) (b)Figure 07: The head housing at different views, (a) and (b)

(a) (b)Figure 08: The Head bottom at different views, (a) and (b)

8/14/2019 MAE377 Project 07 Phase II.2

7/15

9

(a) (b)Figure 09: The bulb at different views, (a) and (b)

(a) (b)Figure 10: The bulb housing at different views, (a) and (b)

8/14/2019 MAE377 Project 07 Phase II.2

8/15

10

(a) (b)

Figure 11: The reflector at different views, (a) and (b)

(a) (b)Figure 12: The reflector ring at different views, (a) and (b)

8/14/2019 MAE377 Project 07 Phase II.2

9/15

11

(a) (b)

Figure 13: The ring at different views, (a) and (b)

(a) (b)Figure 14: The battery-bulb connector at different views, (a) and (b)

Creating the parts of the original flashlight and redesigning some was easier thanI initially thought it would be. All I had to do was sit at the computer with Pro/E

and the flashlight and a ruler. Then I just made the part as I dimensioned it. But itdidnt always work perfectly; like the ring didnt fit as snuggly as it should, but itstill fit and worked out well.

8/14/2019 MAE377 Project 07 Phase II.2

10/15

12

3.4 Pro/E Assemblies

(a) (b)Figure 15: The original assembly at different views, (a) and (b)

(a) (b)Figure 16: The original assembly exploded at different views, (a) and (b)

(a) (b)Figure 17: The redesigned assembly at different views, (a) and (b)

8/14/2019 MAE377 Project 07 Phase II.2

11/15

13

(a) (b)Figure 18: The redesigned assembly exploded at different views, (a) and (b)

The assembly of the original and redesigned flashlight was very easy. Most of

the parts are symmetric about its main axis, which simplified most of theassembling. But for some reason when I would assemble and save the original.asm file, it would not properly open again on another computer. This happenedon two separate occasions.

3.5 Pro/E Drawings

Figure 19: A drawing and dimensions of the parts in the head of the flashlight

8/14/2019 MAE377 Project 07 Phase II.2

12/15

14

Figure 20: A drawing and dimensions of the other parts of the flashlight

Figure 21: The Bill of Materials for the redesigned flashlight

8/14/2019 MAE377 Project 07 Phase II.2

13/15

15

The drawings of the parts were easy to do. But organizing and dimensioningeach part was very time consuming. I used the parts in the head as a sub-assembly and grouped some of the parts into that to fit all the parts on twopages.

3.6 Pro/E Renderings

(a) (b)

Figure 22: The renderings of the original (a) and redesigned (b) flashlight

Rendering the flashlight was also easy. But since it is a flashlight, I decided tocreate some realism buy putting a light bulb inside the bulb (part) with thelights feature of Pro/E.

8/14/2019 MAE377 Project 07 Phase II.2

14/15

16

3.7 Pro/E Animations

(a) (b)Figure 23: The animation screenshots without rendered frames, (a), and with, (b)

The animation portion of the project was very easy. Creating the animationwithout rendered frames was extremely easy. I created the animation withrendered frames in four different parts. It is the same animation, but the last threeparts were sped up so it is less than 40 seconds.

4 Discussion

This part of the project was very difficult for me since I dont have a garage orbasement here. I only have a 10X10 apartment, and I only can have things thatarent broken. Also the Project Requirements stated that the hand sketches mustbe on the sketch paper provided on UBLearns, but there was no such paper.

5 Conclusion

The first part of this project was difficult due to the fact that most students are not

living in houses that have broken objects that match the specifications for thisproject. It was slightly easier when I looked for products that werent broken butstill flawed. Fixing the flaws was easy for me though. The second part of thisproject was easy, but time consuming, since it involved things weve learned andpracticed before.

8/14/2019 MAE377 Project 07 Phase II.2

15/15

17

6 References

https://ublearns.buffalo.edu/webapps/portal/frameset.jsp?tab_id=_2_1&url=%2fwebapps%2fblackboard%2fexecute%2flauncher%3ftype%3dCourse%26id%3d_77303_1%26url%3d