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Difference between revisions of "Darrieus Turbine - 2m combined"

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|cmpfile2=Darrieus 2022 desarrollo técnico 0.02.xls
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{{ProjektComponent
|cmptitle=Project development<!--
|cmpimage=Oho_tdc2_imgref1.jpg -->
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Based on the DIN 2221 standard, among others, OHO has established a series of <i class="mw-customtoggle-div1" style="color:#1b599a;">stages</i> in which the satisfactory [[Processes_involved_in_Project_Development|completion of this project]] was carried out
<div style="margin:20px"></div>
<div class="mw-collapsible" id="mw-customcollapsible-div1" data-origID="mw-customcollapsible-div1"><!-- mw-collapsed -->
==== 1 Feasibility study ====
-----
Manufacturing as OSAT technology is possible?
[[File:Oho_tdc2_002.jpg|300px|thumb]]
* Materials, components
:: Required materials and components can be sourced or replaced locally?
:: &cross; No, Some electronic components may be required from external sources
:: The materials used in this project can be purchased locally, with the exception of some elements that, depending on the area where the equipment is built, will have to be purchased in online stores, such as:
::: * Charge controller
::: * Inverter
::: * Dump load
<div style="margin:20px"></div>
<!--
[[File:Oho_tdc2_vSyOVQ3.jpeg|300px|thumb]]
* Manufacturing processes
:: Required manufacturing processes can be povided locally?
:: &check; Yes
:: No specialized knowledge or complex equipment is required to manufacture this turbine
<div style="margin:150px"></div>
[[File:Oho_tdc2_W9KErFi.jpeg|300px|thumb]]
:: Even in the manufacture of the generator, the tasks can be carried out by personnel with general training in workshop processes
<div style="margin:180px"></div>
* Specific training
[[File:Oho_tdc2_5Ds2VngcpaE.jpg|300px|thumb|link=https://scoraigwind.co.uk/]]
:: Is specific training for manufacturing necessary and can be provided?
:: &check; Yes
:: It is not an essential requirement, but it is highly recommended that the manufacturer knows about some criteria and good practices that have been developed in the field of homemade wind turbines, where the work of Mr. Hugh Piggott is highlighted
<div style="margin:150px"></div>
* Sustainability
:: Do all materials and processes meet the sustainability criteria?
:: &check; Yes
:: The product and its production process can be considered as [https://en.wikipedia.org/wiki/Sustainability sustainable]
<div style="margin:20px"></div>
==== 2 Market analisis and requirements Functional and quantitative requirements ====
----
Functional and quantitative requirements
* Market analysis
: Analysis of the current products on the market:
[[File:Oho_tdc2_gPxXwZym3II.png|300px|thumb]]
:::[https://www.amazon.com/-/es/Primus-Wind-Power-Air-Aplicaciones/dp/B0752CD2D9/ref=sr_1_4 Primus Wind Power Air 40 - Wind Turbine Generator_Remote off-grid power applications]
<div style="column-count:2">
:::: * Price [USD]: 1000
:::: * Source: amazon
:::: * Country: USA
:::: * Machine condition: New
:::: * Rotor diameter [m]: 1.17
:::: * Indicated power [W]: 40
:::: * Theoretical efficiency [%]: 37
</div>
<div style="margin:80px"></div>
[[File:Oho_tdc2_5UfyoQ0cbk0.png|300px|thumb]]
:::[https://www.amazon.com/PIKASOLA-Permanent-Generator-Windmill-Controller/dp/B0829NZFYP PIKASOLA 1000W 24V Permanent Magnet Wind Turbine Generator 3 Blades Economy Windmill for Wind Solar Hybrid System 2.5m/s Starting Speed with Controller for Solar Wind System (24V)]
<div style="column-count:2">
:::: * Price [USD]: 900
:::: * Source: amazon
:::: * Country: USA
:::: * Machine condition: New
:::: * Rotor diameter [m]: 1.9
:::: * Indicated power [W]: 1000
:::: * Theoretical efficiency [%]: 25
</div>
<div style="margin:120px"></div>
[[File:Oho_tdc2_9_di3ibOGmc.png|300px|thumb]]
:::[https://www.amazon.com/-/es/Turbina-e%C3%B3lica-Magnum-fabricada-Europa/dp/B09S9YHBJ1/ref=sr_1_1 TESUP 5 KW 120 kWh/Day Max Magnum 5 Wind Turbine (Made in Europe)]
<div style="column-count:2">
:::: * Price [USD]: 2130
:::: * Source: amazon
:::: * Country: USA
:::: * Machine condition: New
:::: * Rotor diameter [m]: 2.18
:::: * Indicated power [W]: 5000
:::: * Theoretical efficiency [%]: -
</div>
<div style="margin:160px"></div>
[[File:Oho_tdc2_lqIqdpbg06A.png|300px|thumb]]
:::[https://articulo.mercadolibre.com.ve/MLV-727886981-generador-turbina-eolica-molino-de-viento-24v-3000w-_JM Wind Turbine Generator 24v 3000w]
<div style="column-count:2">
:::: * Price [USD]: 545
:::: * Source: mercadolibre
:::: * Country: Venezuela
:::: * Machine condition: New
:::: * Rotor diameter [m]: 1.2
:::: * Indicated power [W]: 3000
:::: * Theoretical efficiency [%]: -
</div>
<div style="margin:80px"></div>
[[File:Oho_tdc2_rLxOFi241MU.png|120px|thumb]]
:::[https://articulo.mercadolibre.com.ve/MLV-574449008-generador-de-turbina-eolica-pequena-_JM Small Wind Turbine Generator]
<div style="column-count:2">
:::: * Price [USD]: 1200
:::: * Source: mercadolibre
:::: * Country: Venezuela
:::: * Machine condition: New
:::: * Rotor diameter [m]: 1.4
:::: * Indicated power [W]: 400
:::: * Theoretical efficiency [%]: 19
</div>
<div style="margin:160px"></div>
[[File:Oho_tdc2_GGc7jRe9Kzg.png|300px|thumb]]
:::[https://articulo.mercadolibre.cl/MLC-512498085-turbina-eolica-generador-con-viento-400w-12v-impotec-_JM Wind Turbine Generator With Wind 400w 12v / Impotec]
<div style="column-count:2">
:::: * Price [USD]: 277
:::: * Source: mercadolibre
:::: * Country: Chile
:::: * Machine condition: New
:::: * Rotor diameter [m]: 1.35
:::: * Indicated power [W]: 400
:::: * Theoretical efficiency [%]: 21
</div>
<div style="margin:80px"></div>
* Requirements definition <br> Definition of the main technical data:
** Rotor diameter [m]: 1-2
** Power [W]: 600-1000
<div style="margin:20px"></div>
* Optimal functions and features <br> Definition of necessary/optional functions and features:
** Security Tail: Mandatory
** Generator: Mandatory
** Battery and charge controller: Desirable
<div style="margin:20px"></div>
==== 3 Search & analisis DIY technologies ====
----
The best technical solutions for all parts and components
* OHO Search engine
: Customization of the OHO search engine
[[File:Oho_tdc2_oho-search1.jpg|300px|thumb|link=https://en.oho.wiki/wiki/Category:Horizontal_axis_wind_turbines]]
: Due to the variety of titles that the OHO search engine was able to track on the Internet, in this case we worked with the category classifier to refine an initial list of examples of horizontal axis wind turbines
<div style="margin:160px"></div>
* Manual search
: Manual search in Google, Youtube, special websites etc.
[[File:Oho_tdc2_EPmW-BjCiWI.jpg|300px|thumb|link=https://www.youtube.com/watch?v=EPmW-BjCiWI]]
<div style="column-count:2">
:::: * Title: Build A Home Wind Turbine - DIY Turbine - Off Grid Living!
:::: * Views: 1700000
:::: * Likes: 27214
:::: * Comments:
:::: * Rotor diameter [m]: 3.7
:::: * Power [W]: 3000
:::: * Security system: Furling activated at 13m/s
:::: * Generator: Three-phase, 12-coil, 16-pole permanent magnet
:::: * Theoretical efficiency [%]: 16
:::: * Airfoil: SD7032
</div>
<div style="margin:100px"></div>
[[File:Oho_tdc2_zWIiL7JjRtY.jpg|300px|thumb|link=https://www.youtube.com/watch?v=zWIiL7JjRtY]]
<div style="column-count:2">
:::: * Title: How To Build An Off Grid Wind Turbine - 1000 Watts!
:::: * Views: 105805
:::: * Likes: 2173
:::: * Comments:
:::: * Rotor diameter [m]: 2.4
:::: * Power [W]: 1000
:::: * Security system: Furling activated at 13m/s
:::: * Generator: Three-phase, 9-coil permanent magnet
:::: * Theoretical efficiency [%]: 16
:::: * Airfoil: -
</div>
<div style="margin:120px"></div>
[[File:Oho_tdc2_The-2F-turbine-Pureselfmade-600x600.jpg|300px|thumb|link=http://scoraigwind.co.uk/measured-performance-versus-recipe-book-predictions/aands-aep-2/]]
<div style="column-count:2">
:::: * Title: The 2F Piggott Turbine Design
:::: * Rotor diameter [m]: 2
:::: * Power [W]: 550
:::: * Security system: Furling
:::: * Generator: Three-phase, Permanent Ferrite Magnet
:::: * Theoretical efficiency [%]: 17
:::: * Airfoil: NACA 4412
</div>
<div style="margin:240px"></div>
[[File:Oho_tdc2_3F-turbine-pureselfmade-600x600.jpg|300px|thumb|link=https://pureselfmade.com/turbine-details/]]
<div style="column-count:2">
:::: * Title: The 3F Piggott Turbine Design
:::: * Rotor diameter [m]: 3
:::: * Power [W]: 1000
:::: * Security system: Furling
:::: * Generator: Three-phase, Permanent Ferrite Magnet
:::: * Theoretical efficiency [%]: 13
:::: * Airfoil: NACA 4412
</div>
<div style="margin:240px"></div>
[[File:Oho_tdc2_P5010001-600x450.jpg|300px|thumb|link=https://pureselfmade.com/turbine-details/]]
<div style="column-count:2">
:::: * Title: The 4F Piggott Turbine Design
:::: * Rotor diameter [m]: 4
:::: * Power [W]: 2000
:::: * Security system: Furling
:::: * Generator: Three-phase, Permanent Ferrite Magnet
:::: * Theoretical efficiency [%]: 15
:::: * Airfoil: NACA 4412
</div>
<div style="margin:130px"></div>
<!~~ * Networking
: Contacting partners, associated organizations and experts
[[File:Oho_tdc2_mFC_93DW_XQ-0017.jpg|300px|thumb|link=https://www.youtube.com/watch?v=mFC_93DW_XQ]]
: During the initial stages of this project, we were able to contact the channel [https://www.youtube.com/@OpenSourceLowTech Opensourcelowtech] and exchange some ideas, for which we are very grateful
: Initially, work was done on a replica of [https://www.youtube.com/watch?v=DHW392drALI one of their project], which served as experience for this case
<div style="margin:160px"></div> ~~>
==== 4 Development and documentation ====
----
Plans and specifications of all parts and components
* Analisis of functions & structures
[[File:Oho_tdc2_detail1.jpg|300px|thumb|link=#Technical_development]]
: Analysis of functions, assemblies and components
: A review of the most important technical aspects in the design of this equipment was carried out, managing to identify and select its components, as well as its operating principles
: It should be noted that most of the information obtained comes from the developer [http://scoraigwind.co.uk Piggott], who has made public a lot of very useful data for this project.
<div style="margin:150px"></div>
* Technical solutions
: Development of technical solutions for assemblies and parts
: A review of the different options adopted in the DIY machines was carried out to meet each design requirement, observing the following variants for some evaluated details:
:: * Evaluated detail: Blade Construction
<div style="margin-left:30px"><ul>
<li style="display: inline-block;"> [[File:Oho_tdc2_vSyOVQ3.jpeg|thumb|none|200px|carved wood|link=https://youtu.be/zWIiL7JjRtY?t=240]] </li>
<li style="display: inline-block;"> [[File:Oho_tdc2_Ld2jXYo.jpeg|thumb|none|200px|Molded fiberglass|link=https://scoraigwind.com/download/windrotord.pdf]] </li>
<li style="display: inline-block;"> [[File:Oho_tdc2_lQ5v0gz.jpeg|thumb|none|200px|Fiberglass with ribs|link=https://www.youtube.com/watch?v=g2-NFXwPI24]] </li>
<li style="display: inline-block;"> [[File:Oho_tdc2_ZSl1v7DymoU.jpg|thumb|none|200px|Carbon fiber with foam sheet|link=https://www.youtube.com/watch?v=YF7wHlWW5XY]] </li>
</ul></div>
:: * Evaluated detail: Airfoil
<div style="margin-left:30px"><ul>
<li style="display: inline-block;"> [[File:Oho_tdc2_eTOxU9x.jpeg|thumb|none|200px|NACA 4412|link=http://airfoiltools.com/airfoil/details?airfoil=naca4412-il]] </li>
<li style="display: inline-block;"> [[File:Oho_tdc2_77wcU84.jpeg|thumb|none|200px|SD7032|link=http://airfoiltools.com/airfoil/details?airfoil=sd7032-il]] </li>
<li style="display: inline-block;"> [[File:Oho_tdc2_rSFR4rV.jpeg|thumb|none|200px|K2|link=http://airfoiltools.com/airfoil/details?airfoil=k2-il]] </li>
</ul></div>
:: * Evaluated detail:  Generator type
<div style="margin-left:30px"><ul>
<li style="display: inline-block;"> [[File:Oho_tdc2_W9KErFi.jpeg|thumb|none|200px|Axial flux with ferrite magnets|link=https://www.scoraigwind.com/pmgbooklet/itpmg.pdf]] </li>
<li style="display: inline-block;"> [[File:Oho_tdc2_nGMHube.jpeg|thumb|none|200px|Axial flux with neodymium magnets|link=https://youtu.be/EPmW-BjCiWI?t=206]] </li>
<li style="display: inline-block;"> [[File:Oho_tdc2_ssLJZM5.jpeg|thumb|none|200px|Car alternator|link=https://youtu.be/4Pa3-pVYSLQ?t=737]] </li>
<li style="display: inline-block;"> [[File:Oho_tdc2_HR7BNda.jpeg|thumb|none|200px|Modified Permanent Magnet Motor|link=https://www.youtube.com/watch?v=_McQqHCRmwA]] </li>
</ul></div>
:: * Evaluated detail:  Speed regulation (more complex variants are excluded)
<div style="margin-left:30px"><ul>
<li style="display: inline-block;"> [[File:Oho_tdc2_d9Wk0vj.jpeg|thumb|none|200px|tail curl - Furling|link=https://youtu.be/STEU2ONd58A?t=335]] </li>
<li style="display: inline-block;"> [[File:Oho_tdc2_umdb5vt.jpeg|thumb|none|200px|Cross vane or stabilizer fin - American|link=https://www.monografias.com/trabajos39/aerogeneradores/aerogeneradores.shtml]] </li>
</ul></div>
:: * Evaluated detail:  Mast Type
<div style="margin-left:30px"><ul>
<li style="display: inline-block;"> [[File:Oho_tdc2_LHTyMbL.jpeg|thumb|none|200px|Tubular post|link=https://youtu.be/EPmW-BjCiWI?t=1262]] </li>
<li style="display: inline-block;"> [[File:Oho_tdc2_HJUi1a9.jpeg|thumb|none|200px|Truss tower|link=https://youtu.be/Iqp3g0F3Ng4?t=803]] </li>
</ul></div>
: See related comments: [[{{TALKPAGENAME}}|Discussion]]
<div style="margin:20px"></div>
* Technical documentation
: Creation of plans, parts lists, assembly instructions
: Once all the necessary information was available, the [[#PDF_plans|project plans]] were prepared
<div style="margin:0px"></div>
* Peer-Reviews
: Peer-Reviews by the community, team members, experts etc.
: Among some revised and improved aspects of the project, prior to the publication of the plans, we can mention:
:: * Improvements in the presentation format of technical notes, they include illustrations on manufacturing
:: * Strictness in the construction of the blades, to achieve the most aerodynamic profile possible, while keeping the construction techniques accessible, published by H. Piggott
:: * Improvements in the design of the truss tower, achieving good performance, without the need to acquire inaccessible iron profiles
<div style="margin:20px"></div>
==== 5. Manufacturing, tests and improvements ====
-----
To date, this project is on hold for manufacturing
* Workshop <br> Determination of the workshop for manufacturing:
: This project is considered as belonging to the group of Appropriate Technologies, for which it has been developed with the intention of the greatest possible access to processes and materials by the developers, with a basic, moderately equipped workshop, however, it is necessary also have the following facilities:
:: * Tools and materials for working with polyester resins
:: * Tools for carving wood, in the case of blades
:: * Adequate spaces, tools and equipment to carry out electrical work, in the case of generator connections and the associated electrical network
: Although these conditions do not pose a greater difficulty during manufacturing, it is left to the developer's discretion to choose between carrying out this work or requesting the services of a third party to guarantee a professional work
The purchasing, prototype manufacturing, testing, and documentation updating sub-processes, will be developed once the manufacturing stage is completed
<!~~ * Purchase
[[File:Oho_tdc2_materials-list1.png|300px|thumb]]
: Purchase of materials and components:
: From the list of parts, the amounts of materials to be required from local suppliers were totaled
** Structural profiles
** Fasteners
** Special profiles
** Metal plates
** Consumables
<div style="margin:130px"></div>
* Manufacturing of prototype <br> Fabrication according to specified quality standards: <br> The manufacturing process is oriented according to the order of the assemblies in the parts list and their assembly logic, this is shown in the various stages of the manufacturing video: [[File:oho_cm3_fab1.jpg|300px|thumb|link=https://www.youtube.com/watch?v=Oz5MzN0Pc_M]]
** [https://www.youtube.com/watch?v=Oz5MzN0Pc_M&t=6s Introduction]
** [https://www.youtube.com/watch?v=Oz5MzN0Pc_M&t=32s Cutting Blades]
** [https://www.youtube.com/watch?v=Oz5MzN0Pc_M&t=82s Support table]
** [https://www.youtube.com/watch?v=Oz5MzN0Pc_M&t=110s Equipment body]
** [https://www.youtube.com/watch?v=Oz5MzN0Pc_M&t=284s Painting and assembly]
<div style="margin:80px"></div>
* Tests and improvement <br> Module tests, system tests, improvement of components: <br> Some [https://www.youtube.com/watch?v=Oz5MzN0Pc_M&t=338s tests] were carried out on the equipment, to verify the correct adjustment of the parts and the efficiency in its operation. [[File:oho_cm3_wtest1.jpg|300px|thumb|link=https://www.youtube.com/watch?v=Oz5MzN0Pc_M&t=338s]]
** Lateral slack: Apply moderate force on the lever, from left to right and vice versa, alternately. The plates do not tilt
** Example of real use: Making cuts of the samples of plate and sheet
** Visual detail of the cut: Straight shape of the cut, Straight edge, no burrs
<div style="margin:110px"></div>
* Updates of technical documentation <br> Updates of plans, parts lists, assembly instructions:
** The main plates (2.1 to 2.3) were manufactured in a thickness of 12mm, which is sufficient, instead of the 16mm initially proposed
** Modification in the length of the bushings, according to the new plate thicknesses
** Pieces 2.5 and 2.6, manufactured in 1/2" square bar, available in the workshop
** Mobile blade (piece 2.7), with dimensions adjusted according to the leaf spring piece achieved, recovered material
:Plans are expected to be updated with these changes, in order to have accurate information regarding the equipment manufactured ~~>
==== 6. Certification DIN Spec 3105 ====
-----
* Formal audit
[[File:pdc_certification-process-diag-page1.jpg|300px|thumb|link=Process_-_Certification_DIN_Spec_3105]]
: Verification of the completeness of the documents:
:: * Parts list
:: * Drawings of all parts and assemblies
:: * Assembly instructions
:: * Optional documents, technical notes
:: * These formal aspects have been verified, the project meets them satisfactorily
<div style="margin:0px"></div>
* Assignment of reviewers <br> Search and assignment of peer-reviewers with sufficient expertise:
**[[User:Xtech2020_review|Xtech2020_review]]
** [[User:Thehunter|Thehunter]]
* Peer-reviews <br> Realization of the peer reviews, technical clarification, improvements:
:: * In process
:: * In the [[#Parts_list|Parts list]] section, some comments have been made
* Certificate <br> Issue of the certificate: In process
<!~~ ==== 7. Promotion, formation ====
-----
* PDF documentation <br> Creation of PDF documentation, training materials etc.:
* Video production <br> Production of blueprint videos, fabricaction videos etc.:
* Publishing <br> Publishing on own website, Wikipedia, social media:
* Use in projects  <br> Use in development cooperation projects, cooperation with partners:
~~>
</div> -->
}}
|Materials={{ProjektMaterials
|Materials={{ProjektMaterials
|matpartnumber=A1
|matpartnumber=A1

Revision as of 15:25, 24 January 2023


Darrieus Turbine - 2m combined

Basic Data

Category: Wind turbines

URL (first publication): https://youtube.com/shorts/Alf6EOTmlHM?feature=share

Keywords: wind turbine, vertical, vawt, blades, piggott, alternator, efficiency, lattice tower, airfoil, AH93W215, savonius, auto start

License: CC BY-SA 4.0

Organization: OHO

Project status: Active


Technical documentation

Maturity of the project: prototype


Contains PDF-drawings: Yes

CAD files are editable: Yes

Assembly instructions are published: Yes

Bill of materials is published: Yes







no

yes yes 








Oho tdc2 render4.jpg

  Oho tdc2 render4.jpgOho tdc2 001.jpgOho tdc2 002.jpgOho tdc2 003.jpgOho tdc2 004.jpgOho tdc2 005.jpgOho tdc2 006.jpgOho tdc2 007.jpgOho tdc2 008.jpgOho tdc2 009.jpgOho tdc2 011.jpgOho tdc2 023.jpgOho tdc2 036.jpg

Description

Manufacturing project, Supported by: GLS Treuhand Stiftung Neue Energie

Technical documentation

PDF plans

Oho tdc2 001.jpg 
Files:

oho_tdc2_Turbina Darrieus combinada de 2m_0.02.pdf

CAD files

Oho tdc2 render3.jpg 
Files:

oho_tdc2_STP-files.zip
oho_tdc2_DWG-files.zip
oho_tdc2_CAD-files.zip

Technical development

Oho tdc2 dt1.jpg 
Files:

Turbina eólica Darrieus 2022_detalles de desarrollo técnico_0.05.pdf
Darrieus 2022 desarrollo técnico 0.02.xls


Project development

Based on the DIN 2221 standard, among others, OHO has established a series of stages in which the satisfactory completion of this project was carried out

1 Feasibility study

Manufacturing as OSAT technology is possible?

Oho tdc2 002.jpg
  • Materials, components
Required materials and components can be sourced or replaced locally?
✗ No, Some electronic components may be required from external sources
The materials used in this project can be purchased locally, with the exception of some elements that, depending on the area where the equipment is built, will have to be purchased in online stores, such as:
* Charge controller
* Inverter
* Dump load


+ General Reviews General Reviews

Add Review

Parts list

Pos. Qty. Part Name Part code Part Type Specifications Review Status Show All Comments
A1 1 3D Views

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A2 1 3D Explosion Views

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B Parts list

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C Technical notes

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1.00 1 Blade assembly

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1.01 18 Rib Production Cedar or pine wood, 350*74*12mm

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1.02 3 Rib2 Production Cedar or pine wood, 500*500*500*12mm

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1.03 3 Fiber layer1 Production Fiberglass and polyester resin, optional polyurethane filling. thickness: 3-5 mm

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1.04 3 Fiber layer2 Production Fiberglass and polyester resin, optional polyurethane filler. thickness: 3-5 mm

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1.05 3 Fiber layer3 Production Fiberglass and polyester resin, optional polyurethane filler. thickness: 3-5 mm.

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1.06 6 Blade reinforcement1 Production Round tube 3/8", sch40 or similar, aluminum.

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1.07 2 Bearing Buy SKF 61808 2RZ bearing, 40*52*7mm, with double seal, double stuffing box HM4R and flanged housing

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1.08 3 Blade arm1 Production Round tube 1 1/4", sch40 or similar, Iron

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1.09 3 Blade support1 Production Plate 1 1/2"*4mm*117mm

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1.10 3 Blade bracket21 Production Plate 1 1/2"*4mm*190mm

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1.11 6 Blade bolt2 Standard Hexagonal bolt 3/8*2 1/2", UNC, grade5

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1.12 6 Blade nut2 Standard Hex nut 3/8", UNC, grade 5

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1.13 6 Blade washer2 Standard Flat washer for 3/8

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1.14 18 Blade bolt1 Standard Hexagonal bolt 1/4*4*1" UNC, grade 5

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1.15 18 Blade nut1 Standard Hex Nut, 1/4", UNC, Grade 5

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1.16 18 Washer washer washer1 Standard Flat washer for 1/4

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1.17 63 Blade reinforcement bolt1 Standard Drywall screw 1 1/2"#8

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1.18 9 Blade band Production Plate 1*1/8"*340mm

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2.00 1 Tower structure

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2.01 4 Main prop Production Angle 1*1"*3mm*2422mm

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2.02 4 Cross member1 Production Angle 1*1"*3mm*616mm

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2.03 4 Crossbeam2 Production Angle 1*1"*3mm*425mm

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2.04 4 Crossbeam3 Production Angle 1*1"*3mm*233mm

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2.05 4 Truss1 Production Round iron bar D3/8"*1100mm

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2.06 4 Truss2 Production Round iron bar D3/8"*1030mm

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2.07 4 Anchor eye Production Flat bar 1 1/2"* 4mm*60mm

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2.08 1 Central post Production Round iron pipe 1 1/4" sch40 (e 3.5mm)*2100mm, Cylindrical

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2.09 1 Post guide Production Round iron pipe 1 1/2", sch40 (e 3.7mm) or similar, l 500mm

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2.10 8 Post support Production Plate 1 1/2"*4mm*177mm

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2.11 1 Stator support Production Iron plate 450*450*5mm

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2.12 2 Post bolt Standard Hexagonal bolt 3/8*2 1/2" UNC, grade 5

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2.13 2 Post nut Standard Hexagonal nut 3/8" UNC, grade 5

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3.00 1 Alternator

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3.01 1 Stator Casting Production Pre-mixed polyester resin with accelerator

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3.02 9 Coil Production Enameled copper cable, D 1.7 mm, 73 turns (for 12V), total weight: 3 kg

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3.03 1 Connector1 Buy 20A three-pole connector

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3.04 2 Rotor casting Production Premixed polyester resin with accelerator

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3.05 24 Ferrite magnet Buy Ferrite magnet block, grade 3, pre magnetized, 30*46*10mm

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