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Team Members Lawrence Lim Isaac Lim Choo Jun Seng Nur Faizee John Li

*To include final CAD drawing of our solution here

Table of content. Background Problem statement Objective Research Design Specification Trial Data Conclusion. 

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Background Problem statement Objective Research Design Specification Trial Data Conclusion

With more Work-from-Home arrangements, our working class need to focus on their work away from their energetic children and curious pets yet remaining aware of what their kids or pets are doing. Working behind closed doors provide a quiet working environment, but situational awareness is greatly reduced. Leaving the door ajar is a balance between noise reduction and awareness but is prone to being opened or closed by the children or pets as traditional door stoppers can be easily removed.. 

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With more Work-from-Home arrangements, our working class need to focus on their work away from their energetic children and curious pets yet remaining aware of what their kids or pets are doing. Working behind closed doors provide a quiet working environment, but situational awareness is greatly reduced.  Leaving the door ajar is a balance between noise reduction and awareness but is prone to being opened or closed by the children or pets as traditional door stoppers can be easily removed.

Problem Statement. There is a need to design a means to keep the door ajar while preventing any door movement in home environments typical to the average HDB flat. 

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There is a need to design a means to keep the door ajar while preventing  any door movement in home environments typical to the average HDB flat

User needs and engineering characteristics. Needs Engineering characteristics Children/pets should not be able to tamper with the device Device installed at adult height Don’t want to permanently install it Device should be removable and able to be stored easily Want to have door at different angles Easy to install and operate No use of complex tools for installation(Powered tools, etc)
Ease of use, ergonomic Should not damage the door and doorframe Installation and use of the device should not result in damage to the door and doorframe Full range of motion of standard HDB swing door The device should not impede the range of movement of the door when installed Door should not be pushed open by a child/pet The device has to withstand the pushing/pulling strength of a child/pet Safe Device has to be secured firmly when installed Low cost Reduce the material used while retaining structural strength. 

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User needs and engineering characteristics

Needs Engineering characteristics Children/pets should not be able to tamper with the device Device installed at adult height Don’t want to permanently install it Device should be removable and able to be stored easily Want to have door at different angles
 Easy to install and operate No use of complex tools for installation(Powered tools, etc)
Ease of use, ergonomic Should not damage the door and doorframe Installation and use of the device should not result in damage to the door and doorframe Full range of motion of standard HDB swing door The device should not impede the range of movement of the door when installed Door should not be pushed open by a child/pet The device has to withstand the pushing/pulling strength of a child/pet Safe Device has to be secured firmly when installed Low cost Reduce the material used while retaining structural strength

Commercially Off The Shelf (COTS) door stopper. Research. 

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Commercially Off The Shelf (COTS) door stopper

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Effective at holding the door ajar Unable to hold door ajar   Effective at holding the door ajar Stops door motion in 1 direction Door only fully open position  Limited angle that the door can be opened at Easily removed by a child/pet
 Stops door motion in 1 direction

 Require 2 separate pieces to function

*To Put our drawings design, maybe put in FEA and some calculations*. 

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*To Put our drawings design, maybe put in FEA and some calculations*

*To include test plans To put in videos or animation of solution being tested*. 

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*To include test plans To put in videos or animation of solution being tested*

*To include test report To include possible improvement to the design or finalized design after trial.*. 

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*To include test report To include possible improvement to the design or finalized design after trial.*

*To conclude we have met our objective as stated*. 

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*To conclude we have met our objective as stated*

Group 4 Door Ajar Fixture