Final copy ppt mechanical prototyping
- 1. CIVIL PROTOTYPING A PRESENTATION ON BAMBOO AND ITS PROPERTIES BY , ABHISHEK SAINKAR SETB104
- 2. INTRODUCTION TO BAMBOO Bamboo has been in wide usages in ancient times as a low- cost material for houses, bridges etc. Recently started appearing in designer homes as flooring, walling and paneling material Is viewed as a material preferred only by the poor or for temporary constructions Unpopular in conventional construction due to low durability, lack of structural design data, exclusion from building codes etc.
- 3. Facts about Bamboo Bamboo can survive more than 120 years in the wild. Bamboo is used in folk medicine to treat infections and to accelerate healing of the wounds. Many animals used bamboo in their diet. Panda's diet is based on bamboo, while mountain gorilla and lemurs eat bamboo to enrich their regular diet. Bamboo is often used in Asian cuisine. It can be served as salad or consumed in the form of soup. Bamboo has wide and strong root system which holds the soil stable and prevents erosion of the ground. Bamboo is the fastest growing plant on the planet. It can grow 3 feet in height in 24 hours under appropriate climate conditions. Unlike other woody plants, bamboo reaches maturity after only 3 to 5 years. Bamboo can grow either as woody, tall plant or as shorter, herbaceous plant. Size of bamboo depends on the species. Largest species of bamboo can reach 1300 feet in height.
- 4. Species of bamboo used for Construction • Bambusa nutans • Dendrocalamus brandisii • Oxytenanthera stocksii • Melocanna bambusoides • Dendrocalamus strictus • Dendrocalamus hamiltonii • Dendrocalamus giganteus • Bambusa bambos • Bambusa polymorpha • Bambusa balcoo
- 5. Some Famous Bamboo structure across world • With the special creation of architect Vo Trong Nghia and his co-workers, the Wind and Water cafe was awarded the International Architecture Award 2008. • The Wind and Water Bar is one of the first works of famous architect Vo Trong Nghia in Vietnam. This cafe has an area of up to 1.200m2. The time for design and construction of the work was one year, with a total cost of VND1.5 billion ($75,000).• The whole work is built from 7,000 nulgar bamboo trees
- 6. Wind and water bar by Vo Trong Nghia • Lengths of bamboo are bound together and bent into arches to create the supporting structure for this thatched dome • It sits in the middle of a lake in the Binh Duong Province in Vietnam • used as a venue for music performances, local meetings and other events
- 7. Salon in Bangkok by NKDW • To emulate this effect in the design for a hair salon interior, thousands of bamboo rods were hung from the ceiling in different lengths • In some places long enough to touch the floor To create screens and permeable walls, separating the shampooing and colouring areas from the main space.
- 8. Durability of Bamboo ■ Without any protective treatment, most bamboo species have an average natural durability of less than 2 years. Stored under cover, untreated bamboo may last 4- 7 years. ■ These variations in bamboo durability strongly depend on the species, the length of the culm, the thickness of the wall, but also, and equally important, the time of harvesting ■ The lower portion of the bamboo culm is considered more durable, while the soft inner part of the wall deteriorates faster than the outer harder portion ■ he large amounts of starch present in bamboo makes it highly attractive to mouldamboo consists of 50-70% hemicellulose, 30% pentosans, and 20-25% lignin. ■ Bamboos also have minor amounts of waxes, resins and tannins, but none of these have enough toxicity to improve its natural durability.
- 9. Various failure modes of Bamboo Structure Failure due to slenderness • Trees in dense stands normally have a small crown growing very high for phototropic reasons. The trees become increasingly top- heavy and at some time they will fall over even under a moderate load. • Trees with higher slenderness have the risk to be first bend sideward by wind and than being pulled down by the weight of their crown. This may get worse by rain or wet snow.
- 10. Failure due to hollowness • Older ancient tress usually become more and more hollow by the work of wood destructing fungi. • Tubes are also equally good for all directions of bending, and are really light-weight structures as only the under loaded middle has been removed. • With a cavity equal to 70% of the radius the risk of failure increases immediately. • There are four bending points where cracks develop, distributed over the stem’s circumference
- 11. Bamboo Joining Techniques • Do not use conventional wood nails in bamboo joinery, they will cause the bamboo to split. Instead use nylon, steel or vegetal cord of the appropriate diameter. • When using bamboo as a column make sure that the lower part connecting with the surface ends with a node. Bamboo cutting Techniques
- 12. When this occurs you should insert a wooden cylinder of the appropriate diameter or a fitting piece of bamboo with a node.
- 13. . Cross joint with dowel. Lateral joint with dowel. Corner joint.
- 14. Joint with double wooden wedge. Joint with dowels and clamping fitters.
- 15. Processing 3D Printing based on Fused Deposition Modelling: Save Catia file into .stl format. In Cura file load .stl do necessary settings as per your 3D printer. file format used : .gcode gcode file was fed to 3D printer(Rio smart maker) via SD card Time required : 2.5 hours
- 16. Printing Of Brim at Base for stand Printing Of Supports
- 17. 3D printing of drawer and its brim
- 18. Post processing Finishing touch for product: removing the supports with help of sand paper or flat file tool. filing the edges of product for finishing to get smooth curved surfaces and edges. Polishing with sand paper giving product aesthetic look.
- 19. Printed Object with supports.
- 20. FINANCIAL ASPECTS (Bill of material) Components Rate (Rs) Quantity Cost (Rs) PLA Material 1600 / Kg 60g 95 Cost of Electricity 10 /unit 3 units 30 Technical labor (Designer) 200 /day 1 200 Non-technical labor 100 / day 1 100 Machining Cost 300 /hr. 2hr 30 min 750 Total 1175
- 21. Organizing different types of AA and AAA Batteries in the upper holes. Drawer can be used for storing Button Cell or Lithium Ion Batteries. Small Electronic Components like transistors, MOSFET, Resistor, OPAMP, etc. can be stored in Drawer. Also Pen drives, Memory cards, any small Stationery like Erasers, Pins, Paper Clips, Coins etc. can be also placed in Drawer Application of project
- 24. CONCLUSION We had created new product in market for organizing different types of Batteries. It is Multipurpose Holder which can be used to organize many things. In Mechanical prototyping we had learnt various methods of Rapid Prototyping. We also learnt about modelling in Catia as well as, we used Cura Software for 3D Printing. We also learnt to operate 3D Printer and its working principles.