Contents 2. Plan of Manafacture 3. General Arrangement Drawing 4. Bill of Materials 5. Business Model Canvas 6. BS8888 Engineering Drawing
PACKAGE OF INFORMATION
aotrom
charlie cumming . pde3 . 2020
plan of manufacture As this is a fairly niche product, a method of manufacture and distrobution needs to be used that is appropriate for this scale of expected sales. In this case, crowd-funding could be an achievable solution. This involves the ‘funding a project or venture by raising money from a large number of people who each contribute a relatively small amount’ [dictionary.com]. Platforms such as kickstarter or indigogo allow quick and easy ways of crowdfunding small product design ventures. By going with crowdfunding, the product gets guaranteed sales from the start, as well as an investment of liquid cash to be able to pay suppliers and manafacturers. By looking at advice for kickstarter projects, (entrepreneur.com/article/229782, blog.producthype. co/kickstarter-tips-2019/), it seems that my project is comparable with most of the advice given by successful campaign managers. Although, adaptation of hero images and video prototype would be needed. Looking at previously funded campaigns for mood lamps (http://kck.st/1jYjhhY), there are many interested project backers, however only 12 launched projects. This seems to be a gap in the market. These range from between 100-10,000 backers. All in all, this means that I will need to plan to manufacture in medium sized batches of 500-5000. Unfortunately this rules out manufacturing techniques with a very high tooling cost such as injection moulding, as well as rules out techniques with a long, expensive production time such as CNC milling, as the price per part should be kept to a minimum. In order to keep communication as easy as possible, final assembly in a local manufacturer would be the best option, as it allows quick QA feedback and changes and revisions to be made. Sourcing as many pre-made components from cheaper overseas suppliers will reduce per-unit costs, freeing up some money for the added cost of local labour. This also means that the lead time will be shorter, which is a concern when manufacturing for a crowdfunding campaign.
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zencube, a similar mental health based lamp, fully funded with products starting at £220. This is far above the expected end retail cost of my product.
luma, a fully funded kickstarter backed mood lamp
charlie cumming . pde3 . 2020
general arrangement part 1 : bottom housing • 5000 grade Aluminium • Cast and anodised • Locally manufactured to reduce lead time, as well as maximise ease of communication. part 2 : ESP32 Open Source developer board • Premade part • Sourced in bulk - custom right angler headers (available in batches of 2000+) • Other components hand soldered in batches part 3 : m2 bolts • Premade part • Fit into tapped bottom housing part 4 : rotary encoder • Premade part • Sourced in large quantities in order to reduce cost per unit. • Standard pinout header part 5 : rotary encoder knob • 5000 grade Aluminium • Cast • Locally manufactured to reduce lead time, as well as maximise ease of communication. • Interference friction fit to rotary encoder part 6 : 54mm fader • Premade part • Custom header created for orders over 1000 units • Bulk bought to reduce cost per unit part 7 : top plate • 2mm Sheet Aluminium • Fine Blanked and line bent • CNC tapped and drilled • Interference fit to base plate • Manufactured at same country as base plate, to be able to check fits and give quick feedback.
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exploded view
part 8 : fader top • Premade Part • Small, simple, low tolerance part, so overseas manufacture to save cost. • Custom metallic coating available from vendors in quantities over 1000 • Interference friction fit to fader
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part 9 : m2 nut • Premade Part • combined with m2x16mm machine screw to secure neopixel.
11 10
part 10 : 12 neopixel ring • Premade part • Sourced in bulk • Custom reverse right angle headers, available in order quantities over 1000 • Secured to base plate using neopixel holder, and cast in wax.
9 8
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part 11: m2x16 machine screw • Premade Part • combined with m2 nuts to secure neopixel and fit into tapped holes in top plate. • part 12 : wax diffuser • cast mixture of 5pt paraffin wax, 3pt gelatine wax, 1pt recycled powered foamboard diffusion medium. • Batch cast over top plate assembly in reusable custom moulds • Wrapped in protective PVC wrap for packaging/transport.
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5
general assembly : As this is a small scale manufacture, approx 500-5000 units, components would be externally manufactured and assembly would occur in a traditional batch production method. The advantage of this over a JIT method would be that pre-made parts can be ordered in larger quantities, essential when minimum orders are needed for custom components. By using small temporary production lines to create sub-assemblies, employee time can be maximised, therefore minimising cost of production. The design uses header connections in order to eliminate the need to solder components to the ESP32 dev board, This again accelerates assembly, as well as lowers the skill level needed to assemble the product.
charlie cumming . pde3 . 2020
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1
bill of materials based off a batch of 1000 units Part Number
Description
Supplier
Supplier number/ SKU
Custom order?
Materials
Cost per kg
Cosr per unit
Processing
Cost per unit
Assembly
Tooling
Total unit fixed cost
Total cost per unit
N/A
Y
5000 grade aluminium
£1.62
£0.26
Casting
£2.04 (inc. shop rate)
N/A
£815
£0.82
£3.12 (converted from USD)
CH340G
1
Base Plate
alucast.co.uk estimated by solidworks
2
ESP32 Open Source Developer Board
JRT Electronic Technology through Alibaba.com
esp8266
Custom Headers
N/A
N/A
£1.63
N/A
N/A
Flashing code 3min @ £10ph = £0.50
N/A
N/A
£2.13
3
M2x6mm Machine Screw
westfieldfasteners.co.uk/
WF2329
N
N/A
N/A
£0.034
N/A
N/A
Inserting screws 9 * 20s @ £10ph = £0.30
N/A
N/A
£0.61
4
Rotary Encoder
Shenzhen Gui Yi Technology through Alibaba.com
55448
N
N/A
N/A
£0.28
N/A
N/A
N/A
N/A
N/A
£0.28
5
alucast.co.uk Rotary Encoder Knob estimated by solidworks
N/A
N
5000 grade aluminium
£1.62
£0.06
Casting
£0.40
Interference fit to rotary encoder 20s @ £10ph = £0.03
£150
£0.20
£0.69
6
45mm Fader
Foshan Apai Electronics Co through Alibaba.com
SC4580GH
Custom Headers
N/A
N/A
£0.29
N/A
N/A
N/A
N/A
N/A
£0.29
7
Top Plate
quote provided by hendfab.com
N/A
Y
3mm 5000 aluminium plate
£1.62
£0.11
CNC Punching, Folding, tapping
£0.53
Fitting to base plate 20s @ £10ph = £0.03
£100 setup
£0.10
£0.78
8
Fader Top
Shenzhen Goldensun Electronics through alibaba. com
HW-221
Custom Colour
N/A
N/A
£0.06
N/A
N/A
Fitting to fader 20s @ £10ph = 0.03
N/A
N/A
£0.09
9
M2x16mm Machine screw
N/A
N/A
Inserting screws and bolts 8 * 20s @ £10ph = £0.27
N/A
N/A
£0.43
N/A
N/A
Testing 1 min @ £10ph = £0.17
N/A
N/A
£0.33
Batch mixing and casting 1hr @ £15ph per 5 blocks (skilled technician)
4 x 5 x £7 (inc tech cost FDM mounds) Lasts 50 casts =£140
£0.14
£1.25
Connections 20s * 16 @ £10ph = £0.53
N/A
N/A
£0.74
11
M2 nut
10
Neopixel LED ring
12a
12b
Wax Diffuser
12c 13
WF17971 westfieldfasteners.co.uk/
£0.042 N
N/A
N/A
WF1253
£0.012
Shenzhen Ruize Technologythrough alibaba.com
12 X WS2812
Custom headers
N/A
N/A
£0.30
Paraffin wax
cosyowl.com
KeraWax 4600
N/A
Paraffin Wax
£1.50
£0.54
Gelatine wax
Guangdong Minxintang Biological through alibaba. com
Foamboard
Assorted Local Buisnesses
Header connector wires
Quzhou Holly Electronic through Alibaba.com
N/A
N/A
MX-0034
N/A
Gelatine Wax
£2.28
£0.47
N/A
N/A
Powdered Foamboard
0
0
Macerating
Operator cost £0.10
HLJK-2019006
N
N/A
N/A
£0.013
N/A
N/A
Total cost per unit: £10.74
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charlie cumming . pde3 . 2020
buisness model canvas The Business Model Canvas
Designed for:
Designed by:
Date:
Version:
Key Partners
Key Activities
Value Propositions
Customer Relationships
Customer Segments
Crowdfunding backers
Make engaging and up-todate socials & campaigns to draw in customers
A far cheaper mental health mood lamp
Engaging social media
16-25 first time movers
Discounts for valued customers
• First time decorators
Other financial investors Custom Manufacturers/ Suppliers • alucast.co.uk
Create efficient supply chain to reduce cost in manufacture
• hendfab.com Crowdfunding platforms
Positive benefit to users sleeping patterns & mental health Improvement to aesthetics of a space
Range of crowdfund tiers and rewards
Enjoyment of modifying and improving a product
• Kickstarter
• Moving out to college/ university • Lower disposable income, however still wanting quality • Happy to wait for delivery of kickstarter
• indiegogo
• Adaptable to modern technology
Key Resources
Channels
Networking
Start online
Manufacture staff - internal & external manufacturers
• Crowdfunding
Workshop production line Social media accounts Designers Accountants & other staff Capital raised from initlal round of funding
Cost Structure
Adults concerned with sleep cycle of themselves/their children 16-25 interested in electronic engineering and wanting a customisable lamp
Continue Online • Etsy • Shopify • Amazon Launchpad Physical Presence • Boutique stores
Revenue Streams
Pre-made parts
Further design staff
Local production
Marketing
Staffing
Assorted other staff
Warehouse storage cost
Initial one-off lump sum funding from campaign backers -covers initial cost e.g. tooling In future revenue coming from increased sales across more platforms once initial costs have been sunk
Shipping between different manufacturers and to end customer
This work is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported License. To view a copy of this license, visit: http://creativecommons.org/licenses/by-sa/3.0/ or send a letter to Creative Commons, 171 Second Street, Suite 300, San Francisco, California, 94105, USA.
DesigneD by: Strategyzer AG
strategyzer.com
The makers of Business Model Generation and Strategyzer
aotrom
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charlie cumming . pde3 . 2020
engineering drawing : bottom housing 8
7
6
5
4
3
2
1
0.0 06
F
.5
11
6
.00
0 0±
A
45.00
4.00
7.5 0±
0.0 06
0.0 06
3.0 0±
2.5 0±
F
5.0 0±
0.0 06
46.77
E
21.88
E
DETAIL A
110.00 102.00
SCALE 2 : 1
R1.50 ±0.006 R1.50 ±0.006
R1.50 ±0.006 .21 19 2 .6 21
D
2 21 0.35 .73
4.00
D
06 .0
40.00 25.00
3.00 8.00
5.00
22.00
0
B
5.00
B
C
23.21
R2 .0
.5
3.50
0
R1
3.50
C
2.50
±0
10.00
UNLESS OTHERWISE SPECIFIED: FINISH: ANODISED ALUMINIUM DIMENSIONS ARE IN MILLIMETERS SURFACE FINISH: CAST ALUMINIUM TOLERANCES: LINEAR: +-0.006mm ANGULAR: +- 0.02 deg NAME
SIGNATURE
DEBURR AND BREAK SHARP EDGES
REVISION 1.0
BS8888
BOTTOM HOUSING
DATE
TITLE:
DRAWN Charlie Cumming CHK'D APPV'D
A
A
MFG Q.A
8
7
6
SOLIDWORKS Educational Product. For Instructional Use Only.
aotrom
DO NOT SCALE DRAWING
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5
4
MATERIAL: 5000 Grade Aluminium
DWG NO.
WEIGHT: 0.46KG
SCALE:1:1
3
DRW_01
2
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