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Classroom furniture design project
The document summarizes the design and fabrication process of a classroom chair. It describes initial user research, concept generation and selection of a final design. Key aspects of the selected design include ease of manufacturing, simplicity, aesthetics and classroom-like appearance. It then details the fabrication process, including working with a pipe bending manufacturer, design changes made for manufacturability, and finishing steps. Lessons learned focused on the importance of constant communication with manufacturers and addressing challenges that arise during prototyping.
Classroom furniture design project
- 2. From Last Presentation •USER SURVEY • RESULTS • REQUIREMENT LIST • REQUIREMENT SPECIFICATION • SNPS • STANDARDS • INITIAL SPECIFICATION • CONCEPTS • CONCEPT EVALUATION • CONCEPT SELECTION
- 3. Final Selected Concept •Ease of manufacturing • Simplicity • Aesthetics • Classroom like looks • Comfort • Contemporary
- 4. SNPS Solution Neutral ProblemStatement To design an ergonomic, spacious, aesthetic furniture with storage facility and adjustable features to enhance user comfort for classroom activities.
- 5. Fabrication • Search – PipeBending is the Major task and it is not available in Our Workshop – The criterion for our Fabrication is to do the critical bending – We should work along with the Fabricator – Should be nearer to our institute so that we can constantly participate • Finding Fabricator – We searched in Yeshwantpura and found only one pipe bending works (M/S Keshava Pipe bendings) – It is a general pipe bending shop mostly doing gate grill works etc – Fabricator didn’t commit properly for both time and cost. The non commitment was a big threat • Changing Fabricator – After we confirmed that the Fabrication will not happen properly, we decided to go to an industrial area. – In Peenya Industrial estate we searched for pipe bending (Plenty of them are available) – We found our Fabricator M/S Lifeline Seating solutions. – Our New and innovative design which is custom made make them to think it may be difficult – We took the challenge of completing it and started the fabrication
- 6. Fabrication • Changes indesign due to limitations – The 4 bends under the seat in the finalized concept was difficult to fabricate due to the standard die radius available. – It is difficult to bend for such a small radius and also can tear the bend – Hence we decided to change the 4 bends into 2 bends with ‘S’ shape • Raw material – The pipe is made up of CI metal tubes – The pipe diameter is 1 inch and thickness is 16 gauge – The writing pad is made up of plywood – The thickness for supporting pipe is ½ inch
- 7. Flow Chart forFabrication START PIPE PROCUREMENT PIPE CUTTING PIPE BENDING WELDING GRINDING MESH WIRE WELDING RED OXIDE COATING PAINTING A
- 8. PLYWOOD & LAMINATE PROCUREMENT PLYWOODCUTTING LAMINATE PASTING B START OF PLYWOOD FABRICATION FINISHING A B SCREWING THE FINISHED BOARD IN THE FRAME
- 9. Processes – Pipe bending •The process of bending the pipe into desired radii • A die is used to bend for the desired radius – Cutting • The pipes are cut into required lengths by a cutter – Welding • Arc welding is used to join the pipes – Grinding • The welded spots are ground using the grinding machine – Sheet Metal working • The seat and back rest are made up of perforated sheet metal • The backrest is bent by pressing – Painting • Red oxide protective coating • Spray painting (Double layer color) – Wood working • Plywood is cut using machine saw • The laminate and plywood are pasted using Rubber solution – Transport • TATA Ace Truck used for transport
- 18. Our Chair Form Function Aesthetics Designer Simple Follows Indian Standards What users wanted Something Different Ergonomic Spacious
- 19. Chair Says itAll • Every chair has life every element has life – I am happy that I am in the same form as I was conceived – I think students shall write, them shall sketch and I support all of it – I think of right handed people as much as I think of left handed people – I also heard that too heavy are more at risk of many diseases, so I prefer to be light weight – I think every one has a right to feel free in a free country – Students shall be students not dentists, not executives well I can’t say much about that for I am humble – I hate ugly things!! – Also have you heard that IDEO says ever increasing SIMPLICITY is the future of design? Well anyways you just did now – And more than that I already have a prospective buyer do you? – And of course I am one proud CPDM Chair
- 20. Lessons Learned • Theproject has been a great learning opportunity for us. The works and events have taught us- – How being in constant touch with the manufacturer helps in understanding some design challenges in pipe based works – How, many problems come during manufacturing of first prototype – How, the design gets effected due to limitations of manufacturing – How some errors shoot the cost – How we can work in a team as a team – How some clashes and arguments take place due to various reasons and how to resolve them
- 21. Lessons Learnt – Howworking in group can be enjoyable – How to handle people – How to work under lot of pressure and yet be cool about it – How can we learn from our own mistakes and improve upon them
- 22. Epilogue • Unexpected encounters –An Argumentative Indian: Man with interesting story
- 23. Epilogue • Unexpected encounters –And one person who felt happy by looking at the chair and wants to buy it for his son
- 24. Chair Says Thankyou • Prof. Amaresh Chakrabarti it’s because of you I am there, so you are like father to me • Ashveen, Nilesh, Rambabu and Vinay for playing mothers • Mr. Shivakumar, Mr. Saravanan, Mr. Sippatulla, Mr. Shankar for helping in building my writing pad • M/S Lifeline Seating Systems where my skeleton was made • National Auto Consultants who gave me colors • Thank you all for appreciating me
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