Page 28 - Kim Hong Tee - Design Booklet Year 3
P. 28

One-Way Valve Redesign





            Exploration                                                                                                  Solution



            The objective is to design a one-way valve that pushes the glue sticks                                       The second valve with the rounded teeth is chosen for specific reasons
            inward and slide back out without pulling back the glue sticks.



            The following 3D models shows the designs of the valve’s teeths



            Front View


















            Angle View






                                                                                                                         Pulling Back Out Feature



                                                                                                                         Pulling the glue stick back out is possible the rounded teeth as contrast

                                                                                                                         with the third valve design which have a hook like teeth facing inward
                                                                                                                         which is effective when pushing the sticks in but may be broken is the user
            Cross Section View                                                                                           pull out the sticks by force.



                                                                                                                         Easier Production



                                                                                                                         As compare to the first valve design, the second one has only four teeth
                                                                                                                         which is more unlikely to cause any production error.









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