Acknowledgements
I never thought twice about taking another semester with Sada sir. His balance of support and critique helped me develop a discipline in the way I think and work - without which the studio would not have turned out the way it has. Apart from design, there’s a set of values and principles for life that I’ve gained during our interactions. For this experience, sir, I am indebted to you.
Shrenee Ma’am and Devvrat have been instrumental in making sure everything happens as planned. To all my studio mates- it was an amazing experience. Thank you!
To Hamsa, Tej, Yug, Karan & Ansh for being the unshakable rocks of friendship I can always rest on and my intellectual sounding boards; and Shria, for always being there.
Mom and Dad - for training up a child in the way he should go, for when he is old, he will not depart from it.
Aspirations
Develop an ability to analyze, evaluate and critique products from different perspectives
Master technical drawings and SolidWorks
Understand how products integrate with the built environment
Look for ticked check boxes that show where and how they were fulfilled!
Spend time visiting and understanding Industry, Practices and Real Projects
Learn to represent and document this information appropriately
Understand product economics
where do materials originate?
Product Analysis
Definitions
Part: A discrete object present in a product
Component: No. of total repetitions of parts present in a product.
Eg. in a BoM, there can be 8 parts and 37 Components. Manufacturing such a product would require a minimum of 8 part drawings, although there are 37 components.
Assembly
To show how these components come together a minimum of 1 assembly drawing is required. Especially for moulded or casted parts, sections are essential. (see right)
Intermediary Part Drawings
According to processes used in manufacturing, each part will need multiple intermediary drawings sent for each process.
what am I trying to communicate? (assembly, part detail, joinery)
who is it meant for? (machinist, assy. line worker)
what can help them read it? (annotations, datums, tolerances)
Product Analysis
- Material
so and so is made out of 2 components, out of which A is planar, and B is bulk. The requirement of part A was to be lightweight and low-cost, hence it was made out of Aluminum and was not finished. Whereas B was to be in contact with users all the time, so it was made out of plastic with rubberized finish.
- Colour
From a production and consumer psychology perspective, Colours play an important role in the manufacturing and design process. They give a feeling of personalization, ownership and control over products that are otherwise exactly identical.
- Finish
Often overlooked, finishes are important because one notices them most when it is blatantly misused or overlooked in our daily lives. Dull mirrors, glossy plastics phones. On the contrary, good finishes form a pleasurable interaction between the product and user.
- Graphics
Form, material and color can only convey so much information. Graphics are the final layer of product design that complete the loop of communication, giving us a robust design.
ways to make stuff
Phase - 2
Product Research
History & Previous Designs
This helped understand what the critical parts are. What was modified, evolved, omitted, or added.
Codes & Standards
Without these, products can never reach the market. They specify water pressure, spray area, efficiency and how to test these parameters, among other things.
Showerhead Codes:
IS17650 Part 2
EPA Watersense ASME A112.18.1
IS17077
Measure Drawing of Showerhead
Product Design Specification
Design
The VKS Showerhead is built to last. All the materials are carefully chosen to give an optimum experience, and performance. It conforms to international standards, while still being
Specs
Product Dimensions
Head: 115x115x80 (lxbxh)
Arm: 200mm 1/2” pipe
Specifications
115
Market Price 280 INR
10 litres/min (2.0 gpm)
80 Features Easy clean surfaces Clog-free nozzle
Recommended water pressure 40-60 psi
Standards
ASME A112.18.1 / CSA B125.1
Provides a comprehensive technical specifications regarding pressure regulation, flow rate and material specifications.
EPA WaterSense
This does not overlap with ASME - It looks specifically at environmental concerns and provides a framework to evaluate and test products to qualify them as sustainable
Testing
Tests you can Trust
The showerhead undergoes rigorus testing according to EPA standards, to ensure that you get the best experience possible.
Our tests ensure: Flow Pressure Spray Coverage Force of Spray
For more details on testing procedure, visit epa. gov/watersense/showerheads
CMF
CEPT University Faculty of Design
10 Supply Chain Analysis 2 days Tue 18‐10‐22 Thu 20‐10‐22 0%
11 Product PDA and PRIMA 2 days Thu 20‐10‐22 Sat 22‐10‐22 0%
12 Manufacturing Timelines 2 days Sat 22‐10‐22 Mon 24‐10‐22 0%
13 Material Estimation and Quantity Mapping 2 days Mon 24‐10‐22 Wed 26‐10‐22 0%
14 Packaging Analysis 6 days Wed 26‐10‐22 Tue 01‐11‐22 0%
15 How Packaging Works 3 days Wed 26‐10‐22 Sat 29‐10‐22 0%
IDTask ModeTask Name DurationStart Finish % Complete
1 Map Requirements 4 days Sun 02‐10‐22 Thu 06‐10‐22 100%
2 Identify Product & Specificatio 2 days Wed 05‐10‐22 Fri 07‐10‐22 0%
3 Understand Relevant Ratings and Testings 1 day Sat 08‐10‐22 Sun 09‐10‐22 0%
4 Identifying and Representing Components 4 days Sun 09‐10‐22 Thu 13‐10‐22 0%
5 Create BOM 1 day Sun 09‐10‐22 Mon 10‐10‐22 0% 6 Diagrams and illustrations to show the use of the 2 days Tue 11‐10‐22 Thu 13‐10‐22 0%
7 Process Charts 6 days Fri 14‐10‐22 Thu 20‐10‐22 0%
8 Research Making Processes 2 days Fri 14‐10‐22 Sun 16‐10‐22 0%
9 Flowchart for all Products 2 days Sun 16‐10‐22 Tue 18‐10‐22 0%
10 Supply Chain Analysis 2 days Tue 18‐10‐22 Thu 20‐10‐22 0% 11 Product PDA and PRIMA 2 days Thu 20‐10‐22 Sat 22‐10‐22 0%
12 Manufacturing Timelines 2 days Sat 22‐10‐22 Mon 24‐10‐22 0%
13 Material Estimation and Quantity Mapping 2 days Mon 24‐10‐22 Wed 26‐10‐22 0%
14 Packaging Analysis 6 days Wed 26‐10‐22 Tue 01‐11‐22 0%
15 How Packaging Works 3 days Wed 26‐10‐22 Sat 29‐10‐22 0%
16 How are Current Products Packaged? 2 days Sat 29‐10‐22 Mon 31‐10‐22 0%
17 Reccomendations to Improve Packaging 1 day Mon 31‐10‐22 Tue 01‐11‐22 0%
18 Sustainability Analysis 2 days Tue 01‐11‐22 Thu 03‐11‐22 0%
19 Read Relevant Literature and Understand Ratings 1 day Tue 01‐11‐22 Wed 02‐11‐22 0%
20 Rate product sustainability 1 day Wed 02‐11‐22 Thu 03‐11‐22 0%
21 Research & Propose Factory Layout 2 days Tue 01‐11‐22 Thu 03‐11‐22 0%
22 Material Substitution 3 days Thu 03‐11‐22 Sun 06‐11‐22 0%
23 Video Presentation 4 days Sun 13‐11‐22 Thu 17‐11‐22 0%
24 Booklet Compilation 4 days Sun 13‐11‐22 Thu 17‐11‐22 0%
Injection Moulding Simulation
Why bother with an injection moulding simulation?
The process of setting up the simulation itself helped me realize all the factors involved in moulding, and how they affect the end result - this is as practical and holistic as it can get.
Aim a. To simulate the parameters required to make of this part b. To predict the defects by observing corresponding areas of the real product, thereby verifying the process. c. To propose an alternate method of moulding that improves on either material parameters, machine parameters or process parameters
Aspirations Fulfilled
Develop an ability to analyze, evaluate and critique products from different perspectives Understand plastics moulding parameters & simulation setups deeply
Material Properties
Comments: Polymer
Material Name ABS
Material Name ABS
Product Name (P) Generic material / Generic ABS
Product Name (P) Generic material / Generic ABS Melt Temperature 230.00 °C Mold Temperature 50.00 °C Ejection Temperature 90.00 °C Transition Temperature 100.00 °C
Melt Temperature 230.00 °C Mold Temperature 50.00 °C Ejection Temperature 90.00 °C Transition Temperature 100.00 °C
Specific Heat 2.400000e+07 erg/(g-C) Thermal Conductivity 1.800000e+04 erg/(seccm-K)
Specific Heat 2.400000e+07 erg/(g-C) Thermal Conductivity 1.800000e+04 erg/(seccm-K)
Young Modulus 2.250000e+10 dyne/cm2 Poisson's Ratio 3.900000e-01 Curve
Young Modulus 2.250000e+10 dyne/cm2 Poisson's Ratio 3.900000e-01 Curve
CEPT University, Navrangpura 380009, India. 18 September 2022
Flow Results
Comments:
Flow Summary
Clamp Force 0.0000 Tonne
X-dir. Clamping Force 6.0800 Tonne Y-dir. Clamping Force 21.5800 Tonne Z-dir. Clamping Force 5.8900 Tonne
Required injection pressure 53.6200 Mpa
Max. central temperature 231.3500 °C Max. average temperature 217.3900 °C Max. bulk temperature 233.4900 °C
Max. shear stress 0.4600 Mpa Max. shear rate 10478.0900 1/sec
Averaged perfect cooling time 5.3300 sec
CPU Time 85.43 sec Cycle Time 14.37 sec |- 1. Filling Time 0.96 sec |- 2. Cooling Time 8.41 sec |- 3. Mold Open Time 5.00 sec
Flow Results
Comments:
Flow Summary
175 Wyman St, Waltham, MA 02451, United States 17 September 2022
Clamp Force 0.0000 Tonne
X-dir. Clamping Force 1.9000 Tonne Y-dir. Clamping Force 13.3700 Tonne Z-dir. Clamping Force 1.8400 Tonne
Required injection pressure 38.4000 Mpa
Max. central temperature 230.7600 °C Max. average temperature 216.2100 °C Max. bulk temperature 231.1900 °C Max. shear stress 0.5500 Mpa Max. shear rate 10581.3800 1/sec
Averaged perfect cooling time 5.3400 sec CPU Time 60.40 sec
Cycle Time 13.98 sec |- 1. Filling Time 0.96 sec |- 2. Cooling Time 8.02 sec |- 3. Mold Open Time 5.00 sec
Highlighted Params. have been improved
Infographics & Process Charts
Plain engineering process charts are boring! Nobody wants to see them, lesser still stop and understand them.
Aim
a. Understand the crucial aspects of a process b. Represent it appropriately - through content and composition arrest the viewer and
Aspirations Checked
Learn to represent and document process information appropriately
The Secret Life of a Showerhead
Before it reaches a bathroom, a shower goes through a multitude of proccesses to reach it’s final form! Let’s look at briefly at the journey of a showerhead from raw material to finished product.
Warehousing & Retrieval
Material is stored and sent to process stations based on requirement
Raw Material Arrives Orders are sent out as per BOM, and delivered to the warehouse
Head Subassembly
Injection Moulding, Compression Moulding and other bulk operations take place here
Pipe Subassembly
The showerhead’s arm is made here. Operations such as cutting, welding, grinding and pipe threading are done
Final Assembly
Both subassemblies come together in this station; simutaneously, they are visually inspected
Testing
Assembled products are placed in the flow testing machine; defective products go back to the assembly line for checks
Packaging
Here both subassemblies are separated and packed, for better efficiency; they are then loaded into cartons
Pipe Threading A special machine ensures quality and speed of cutting threads
Fixturing Correct fixturing is a crucial step. Special jigs ensure fast, accurate and reliable setups
Subassembly
Welding
Cutting Trimming raw pipe stock to required length and angle. This requires a jig as well
Welding Flux-cored MIG wire eliminates the need for argon gas in the process
Inspection Job is inspected based on checklistfor critical dimensions, leakage and cracks
Grinding & Brushing Ensure rough & fine cleaning of welds respectively
In-House Parts
Sl Part Name Part No Material
Finish Description Manufacturer Q TY
1Shaft A L-S1Brass Chrome Electroplated Water inlet pipe Kalpataru Piping Solutions 135Kilograms0.041000
2Shaft BL-S2Brass Chrome Electroplated Water Inlet Pipe Kalpataru Piping Solutions 1186.25Kilograms0.194750
3Holder Ring ProfileB-H1PolypropyleneSPI B-2
4Hose GasketB-H2 TPR Thermoplastic Rubber As Molded
5 Back Cover (Material Substitution) S-B1SS 304PVD
Buffer between socket cap and inlet socket Shiva Polymers11.5Kilograms0.02500
Creates watertight seal between inlet socket and outlet plate
Shiv Industrial Products 12.4Kilograms0.03750
Houses and connects entire working mechanism to plumbing Unimix Metal141sq
6Front Cover Plate 3B-H2ABS MP211SPI A-1Casing for the water spoutRebha Polychem119.6Kilograms0.025625
Total 6
Bought Out Parts
Studio: Design for Excellence
Sl PART NUMBER Part No Material Finish Desc ription Manufac turer QTY
NameAbishai Choragudi CodeUG190029
1Inlet Socket
ABS MP211 Chrome Electroplated
Ball socket joint for rotational adjustment Rebha Polychem16Kilograms0.071750
2Socket Cap ABS MP211 Chrome Electroplated Secures the adjustment mechanism to part body Rebha Polychem16.2Kilograms0.071750
3M4 Screws MS Zinc Blue Passivated Bought Out Bhandari Enterprises 81.3Kilograms0.0125085
4Water Outlet Plate ABS MP211 SPI B-1 Connects back housing to outlet mechanism Rebha Polychem128.2Kilograms0.032800
5Molded Spout Surface TPE-SSPI B-2Final water flow outletVKS Plastic117Kilograms0.018450140
Total 12
Abishai Choragudi UG190029
Studio: Design for Excellence
Name Abishai Choragudi Code UG190029
Part Weight (grams)
RM Measure RM/Part RM/25k U Cost/Unit RM Cost/25k U Mfg References Standards & Codes
135Kilograms0.041000 ₹ 500.00 ₹ 5,00,000.00
1186.25Kilograms0.194750 ₹ 500.00 ₹ 23,75,000.00
Brass Pipes Manufacturer, Brass Tube Supplier, Brass Seamless Pipe in India (kalpatarupiping.com)
Polymers11.5Kilograms0.02500 ₹ 90.00 ₹ 45,000.00
White Polypropylene Virgin Granules, For Plastic Industry, 0.923 Gm/Cubic cm at Rs 90/kg in New Delhi (indiamart.com)
12.4Kilograms0.03750 ₹ 65.00 ₹ 48,750.00 Rubber Sheets at Rs 65/kg | Ahmedabad | ID: 25934284330 (indiamart.com)
Metal141sq m/kg0.013325 ₹ 150.00 ₹ 48,750.00
Polychem119.6Kilograms0.025625 ₹ 120.00 ₹ 75,000.00
Rectangle Silver Stainless Steel 304 Sheet, Thickness: 0.1-3mm at Rs 150/kg in Mumbai (indiamart.com)
ASTM B135, HS7412
ASTM B111, HS7412
IS10951
ISO18064
ASME A112.18.1 / CSA B125.1
LG Chem ABS Plastic Granules, Packaging Size: 25 Kg at Rs 120/kg in Delhi (indiamart.com) IS17077 285 75 ₹ 237 50 ₹ 30,92 ,500 00 Part
Polychem16Kilograms0.071750 ₹ 145.00 ₹ 2,53,750.00
LG Chem ABS Plastic Granules, Packaging Size: 25 Kg at Rs 120/kg in Delhi (indiamart.com)
IS17077 Polychem16.2Kilograms0.071750 ₹ 145.00 ₹ 2,53,750.00
LG Chem ABS Plastic Granules, Packaging Size: 25 Kg at Rs 120/kg in Delhi (indiamart.com)
IS17077 81.3Kilograms0.0125085 ₹ 21,250.00
Combi Mild Steel 4x8mm MS Machine Screw, For Industrial at Rs 85/kg in Chandigarh (indiamart.com)
8 or .01kg, RM 250 or 200000 Polychem128.2Kilograms0.032800 ₹ 145.00 ₹ 1,16,000.00
LG Chem ABS Plastic Granules, Packaging Size: 25 Kg at Rs 120/kg in Delhi (indiamart.com) EPA Watersense Plastic117Kilograms0.018450140 ₹ 63,000.00 Thermoplastic Rubber TPR Granules at Rs 140/kg | Tpr Granules in Valsad | ID: 23292637797 (indiamart.com)
ISO18064
S No Name of Machine Process
Investment Value (INR) Amortizati on (years)
Power Consumption (KWh)
Area Occ upied sqm.
1Rothenberger Pipe ThreadingPipe Threading 3,15,000.00 ₹ 5 2 1
Estim Op
2Baileigh Abrasive Chop SawCutting 2,52,000.00 ₹ 51.5 1
3 Bosch GWS 600 Grinding 12,500.00 ₹ 3 2
4Wurth MIG/MAG 250Welding Inverter 1,71,000.00 ₹ 5 150.5
5 TOYO Si-50Injection Moulding7,50,000.00 ₹ 53.758
6 Pellet Mixing Machine Masterbatching 1,75,000.00 ₹ 5 15 6
7Plastic Scrap GranulatorShreddiing 1,00,000.00 ₹ 57.5 4
8Hot Runner ManagementInjection Moulding 35,000.00 ₹ 3 0 1
9Electroplating Plant Finishing 5,00,000.00 ₹ 5 25 90
10 Industrial Crane Transport 2,00,000.00 ₹ 5 5 0
12PVD Coating Machine PVD 25,00,000.00 ₹ 5 10 8
13Sanitaryware Testing MachineTesting 4,00,000.00 ₹ 50.51.75
Total 54,10,500.00 ₹ 8 7 .25 1 2 1.2 5
Notes:
Abishai Choragudi UG190029
Abishai Choragudi UG190029
mated Hours of peration (yr)
Operator Wage (INR/Hour)
Investment HC Electricity HC (4 8/Unit) Notes Sourc e
1800 180.00 ₹ 35.00 ₹ 9.60 ₹
Can be VE'd to combine threading and sawing into one operation (CNC Lathe)
ROTHENBERGER Portable Pipe Threading Machine: 1/4 in to 1-1/2 in Bolt Size, 1 hp, 21 in Overall Lg - 4ERZ4|63005 - Grainger 500 180.00 ₹ 100.80 ₹ 7.20 ₹
Abrasive Industrial Cut-Off Saw - AS-350M | Baileigh Industrial 2000 180.00 ₹ 2.08 ₹ 9.60 ₹
BOSCH GWS 600 professional Angle Grinder for Metal Working (with Brush Motor & Protective Guard - 670W, 100MM, M10) (Blue) : Amazon.in: Industrial & Scientific
1000 250.00 ₹ 34.20 ₹ 72.00 ₹
Flux cored wire eliminates the need for argon gas tank while welding Wurth MIG/MAG 250 Welding Inverter at Rs 171445 | MIG Welding Machine in Mumbai | ID: 26140206988 (indiamart.com)
2000 350.00 ₹ 75.00 ₹ 18.00 ₹ See estimation report for details » Si-50-6S | TOYO MACHINERY & METAL CO.,LTD. (toyo-mm.co.jp)
1250 200.00 ₹ 28.00 ₹ 72.00 ₹
Mild Steel Plastic Granules Mixer, For Industrial, Capacity: 100-500 L at Rs 165000 in Ahmedabad (indiamart.com)
Color Coated HDPE,PVC and PP. Plastic Scrap Granulator, For Industrial at Rs 100000 in Ahmedabad (indiamart.com) 100 150.00 ₹ 116.67 ₹
750 100.00 ₹ 26.67 ₹ 36.00 ₹ 60kg/hr capacity
HOT RUNNER, Display Size: 48 X 48 at Rs 3000/piece in Ahmedabad | ID: 24126560462 (indiamart.com) 2000 180.00 ₹ 50.00 ₹ 120.00 ₹
Electroplating Plant - Electroplating Plant buyers, suppliers, importers, exporters and manufacturers - Latest price and trends (connect2india.com) 750 180.00 ₹ 53.33 ₹ 24.00 ₹
Industrial Cranes - Double Girder Crane Manufacturer from Ahmedabad (laxmicranes.org) 350 220.00 ₹ 1,428.57 ₹ 48.00 ₹
PVD Coating Machine at Rs 2800000/unit | PVD Ion Coating Machine in New Delhi | ID: 20805807012 (indiamart.com) 650 220.00 ₹ 123.08 ₹ 2.40 ₹
Sanitaryware Shower Head Faucet Lifetime Testing Machine Tester - China Shower Head Lifetime Test Bench and Lifetime Test Bench (made-in-china.com) 1 99 .1 7 ₹ 1 72 .78 ₹ 38.07 ₹