Flowers to Russia Thank you for publishing these guides free for everyone, they are very useful.
This standard was initiated by the Internet of Production Alliance and developed by an open-membership working group. It is designed to create a consistent way of documenting and sharing information about manufacturing capabilities to make it easier for people to identify where hardware can be made locally or anywhere in the world.
This specification is designed to be adopted by anyone who collects or shares data about manufacturing capabilities, including governments, non-government organisations (NGOs), aid agencies, mapping communities, makers and platforms. The standard defines data that meets the needs of a broad range of use cases and purposes.
We call this “Open Know-Where”.
Adopting the Open Know-Where standard will:
Improve the discovery of manufacturing facilities and equipment within the manufacturing industry and maker communities.
Enable someone who wants to access a manufacturing facility to discover who they should be contacting.
Improve relationships and collaboration between users and networks.
Make data about the location of manufacturing capabilities more easily discoverable and accessible when needed.
Enable better curation and management of data, so it can be collated, organised, queried and filtered.
Enable the curation of tools to extract the maximum value from the data.
Overall, the more universal the standard is, the more useful it will be. The principle is that it is an open standard, whether or not the data it is used to describe is released openly.
The standard covers five concepts (classes) that mapping initatives typically describe. For each concept, we have aimed to standardise the properties to an appropriate level of granularity, which is helping someone to find out where something can be made.
The five classes are:
Manufacturing Facility
Agent (Persons and Organisation)
Location
Equipment
Materials
Several aspects of the classes can be standardised through classification and dictionaries. Using this approach means initiatives and manufacturing facilities can more easily share, compare and aggregate data. This is important, as currently there is no way to do this without duplication of field names and data. The ability to easily share data encourages the building of relationships and collaboration between users and networks. This will lead to improved documentation, networking, and discovery of mapping initiatives, manufacturing facilities and equipment within the manufacturing sectors and maker communities.
The intention is for data published under Open Know-Where, to be helpful and informative, rather than authorative. We assume that any procurement resulting from data published under this standard will still involve direct or mediated interaction between the user/buyer and the facility. Future versions of the specification will move towards more rigorous approaches to defining information to enable distributed procurement systems.
The project follows on from the success of the Open Know-How documentation standard, released in September 2019.
This specification defines a standard that provides a mechanism for the discovery and exchange of the location of manufacturing capabilities and where to get something made. This reflects the goal established by the Internet of Production Alliance whose aim is to develop the enabling technologies and infrastructures to support a global move to distributed and local manufacturing.
More information about the Internet of Production Alliance can be found here: https://global.us17.list-manage.com/subscribe?u=9ef0e368cc373faed18dbfc77&id=1e6d61b540
The Open Know-Where specification defines a data model to:
Document the location of manufacturing capabilities globally.
Share information about manufacturing facilities and the manufacturing capabilities.
Improve networking within the manufacturing industry and maker communities.
The Open Know-Where specification provides the level of detail needed for quick and simple documentation of manufacturing capbilites and manufacuting facilities.
Although designed to be used by all, the intended audience is:
Mappers
Maker communities
Governments
Non-Government Organisations
Aid Agencies
Platforms listing local manufacturing capabilities
The standard does not specify a data format or exchange protocols, instead it aims to support the wide range of use cases from spreadsheet-based datasets through to web-based platforms.
This specification is divided into eight main sections:
Introduction – provides a broad overview of the background, scope and aim of this standard.
Data Model Diagram – provides an overall view of the Open Know-Where Data Model
Using the Data Model – provides guidance about how to use the data model, with answers to our most frequently asked questions.
Manufacturing Facility – defines properties relating to the manufacturing facility. Recommended classifications and formats are also provided for consistency.
Agent – defines properties relating to people and organisations. Recommended classifications and formats are also provided for consistency.
Location – defines properties relating to locations. Recommended classifications and formats are also provided for consistency.
Equipment – defines properties relating to equipment. Recommended classifications and formats are also provided for consistency.
Materials – defines properties relating to materials. Recommended classifications and formats are also provided for consistency.
Record Data – defines properties relating to record data. Recommended formats are also provided for consistency.
Technical authoring for version 1.0 has been undertaken by Barbal Limited.
The standard has been developed under the guidance of the Open Know-Where working group following a series of qualitative interviews with members of NGOs, aid agencies, mapping communities, makers and platforms, and analysis into datasets shared by mapping initiatives and organisations. From this initial research, a conceptual data model was developed and circulated to stakeholders for comment. This document is the formalisation of that data model and includes descriptions of each aspect and guidance for how mapping initiatives can adopt the standardised approach it prescribes.
The following have contributed directly towards the development of this specification.
Name | Organisation |
Andrés Barreiro | Wikifactory |
Charles Barrete | Field Ready |
Pierre-Alexis Ciavaldini | Makernet |
Liz Corbin | Metabolic |
Guillaume Coulombe | Fab Labs Québec / Procédurable |
Marc-Olivier Duchame | Fab Labs Nation |
Andrew Lamb | Field Ready / Internet of Production Alliance |
Anna Sera Lowe | Manufacturing Change / Internet of Production Alliance |
Bryn John | Field Ready |
Ben Oldfrey | UCL |
Nathan Parker | MakerNet.work |
James Ochuka | Juakali Smart |
Alessandra Schmidt | Make Works |
Hannah Stewart | RCA / Dark Matter Labs |
Aziz Wadi | Field Ready |
Anna Waldman-Brown | MIT |
More people than those listed here have been consulted, and we still welcome any additional input from anyone who wants to get involved with Open Know-Where.
This diagram illustrates the classes, properties and relationships that are introduced in the following main sections.
Whilst the model represents a relational schema between concepts, it is not anticipated that all initiatives would use the whole model. The schema is designed so that individual initiatives can focus only on certain aspects and then data can be aggregated between data sets to create richer, more powerful insight.
For example an initiative to create an open database of equipment capabilities by make and model could be combined with a mapping initiative of maker spaces in a region which lists the make and model of the equipment available to help someone work out where the specific manufacturing processes they need can be accessed.
Anyone can adopt the data model. It has been designed to be applied across a variety of use cases, and provides a level of detail needed for quick and simple mapping and recording of manufacturing capabilities and manufacturing facilities. It can be used by formal and informal organisations, and anyone who is mapping manufacturing capbabilities and manufacturing facilities.
No, this standard does not change your access models to your content.
Not necessarily. The primary purpose of Open Know-Where is to make it easier to share information between mapping initiatives and other entities who can make use of the data. We do not anticipate that many data initiatives will choose to publish all the information openly online and advise mapping initiatives to consider the privacy and security of facilities, organisations and individuals and the permissions (implied or explicit) they have for using the information they have collected or recieved. In some cases it will be prudent to redact information to make is suitable for publishing online, e.g. state the city and not a full address, or provide a login wall to access contact information.
Naming conventions allow useful information to be deduced from regularity, will prevent confusion among others who are collecting the same or similar data, and make it easier for others to interpret your data.
By using a naming convention such as Wikipedia, the classification simply provides a relevant Wikipedia URL and references the corresponding Wikipedia article to the concept being described. For example, through this way of classification, you can use the corresponding Wikipedia article for a manufacturing process, to define the process capability of a facility. The same can be applied for equipment and materials. This manner of classification makes manufacturing processes, equipment and materials easy to navigate and provides consistency across the classification.
For example, for the metal-joining process of Brazing:
Wikipedia article: https://en.wikipedia.org/wiki/Brazing
To aid consistency, Open Know-Where recommends using an existing classification system for Equipment, Manufacturing Processes and Materials. This being Wikipedia.
To classify equipment:
To reference a facility has a piece of equipment, for example a soldering iron, you would simply copy and paste the Wikipedia URL for a soldering iron into the relevant field.
Wikipedia article: https://en.wikipedia.org/wiki/Soldering_iron
To classify a manufacturing process:
To classify a manufacturing process, for example soldering, you would simply copy and paste the relevant Wikipedia URL for soldering into the relevant field.
Wikipedia article: https://en.wikipedia.org/wiki/Soldering
To classify a material:
To reference a material, for example aluminium, you would simply copy and paste the relevant Wikipedia URL for aluminium into the relevant field.
Wikipedia article: https://en.wikipedia.org/wiki/Aluminium
The scheme is designed to support any structured data format. There is no recommendation for how the data is stored or transferred.
Rather than creating classifications for Equipment, Manufacturing Processes and Materials we have used Wikipedia as reference.
The specification also references ISO 8601, the format YYYY-MM-DD for date, and ISO 639-2 or ISO 639-3, for example “en-gb”, to record Languages.
Open Know-Where is more detailed than Open Know-How version 1, which only extends as far a signposting the documentation for making things. We anticipate that later versions of Open Know-How will apply the same approach as Open Know-Where for classifying equipment, materials and processes so that the two standards will be fully interoperable.
This section defines the layout used for defining properties. The list of properties are laid out in sections four, five, six, seven and eight. Each of these sections are navigated by the label assigned to each individual field.
Sub-properties are used to group properties that relate to a specific concept and that might be applicable in specific circumstance (e.g. educational aspects of an innovation space).
For each property, the following specification is given where applicable.
Label | The human readable name assigned to the term. |
Fieldname | The standardised computer readable fieldname. Typically this is the label expressed in camel case. |
Definition | A statement which represents the concept of the term. |
Format | The recommended practice for the field. |
Note | Additional points of note. |
Example | An illustration of how the term can be used. |
No aspect of the specification is mandatory. However the more rigourously the specification is followed, the more useful the data will be to others when shared.
The Open Know-Where working group intends to develop implementation guides for specific use cases which may make certain aspects mandatory in certain situations, e.g. Humanitarian applications may specify that certain formats are used for fields or the Humanitarian Exchange Language (HXL) is used for location.
That’s fine. You should make a decision as to whether the information you share will comprimise the trust, privacy or security of the facilities or individuals the information relates to and apply a risk based approach when deciding how you share data and who with.
Absolutely, the standard is designed to work with any structured data format. The design is such that we expect that you will use separate sheets within a workbook for each of the five classes and then use a primary key or other spreadsheet functionality to link between them.
Open Know-Where is compatible with any data serialisation format, for example, XML, JSON, and YAML. It may be helpful to speak with who you are exchanging data with to find out which format is most appropriate.
We have not made any recommendation for how to link related data between datasets, however each class has fields (or combination of fields) which can be used as unique references.
Possibly. The data model doesn’t require you to capture new data, as it is not mandatory to use all the properties, but you may have to restructure your data. The amount of work will be dependent on the size of your datasets.
You are free to extend the fields you use in your own datasets, they just might not be recognised by others. If you think your properties would be a useful addition to the Open Know-Where specification itself for others to use, contact the working group and recommend the additions.
This class incorporates the important properties relating to ‘Manufacturing Facility’. By facility we mean the workspace used for manufacturing.
There are many different types of workspaces, ranging from industrial facilities such as factories, to small scale production facilities such as workshops, to makerspaces, even individual craftspeople working from home. The aim of Open Know-Where is to incorporate and capture the properties that are common to all of them, and also to define important fields that are only applicable to certain types of manufacturing facilities. For example, for innovation type spaces we have included sub-properties such as Learning Resources, which is not relevant to all manufacturing facilities but important to those within maker communities.
Where properties are logically grouped, such as ‘Human Capacity‘ and ‘Innovation Space Properties‘, they are presented as collections of sub-properties.
Definition: Name of the facility.
Format: Provide the name of the facility.
Definition: Location of the facility.
Format: Uses the Location class.
Definition: An Agent who owns or manages the facility.
Format: Uses the Agent class.
Definition: An Agent who is the contact for enquiries about making.
Format: Uses the Agent class.
Definition: The Agent(s) who the manufacturing facility is affiliated with.
Format: Uses the Agent class.
Note: An affiliation can be used to define the facility type, for example an affiliation with FabLabs.org implies that the facility is a FabLab.
Definition: Status of the facility.
Format: Use of one the following:
Active
Planned
Temporary Closure
Closed
Definition: Hours in which the facility operates.
Format: Free text.
Definition: Description of the facility.
Format: Free text.
Definition: Date the facility was founded.
Format: Recommended practice is to use ISO 8601, i.e. the format YYYY-MM-DD.
Note: It is acceptable to include only the Year (YYYY) or year and month (YYYY-MM).
Definition: How the manufacturing equipment is accessed.
Format: Use one of the following:
Restricted (only certain people (e.g. staff members) can use the equipment)
Restricted with public hours (the equipment can be used by the public during limited hours)
Shared space (the facility is a shared workspace where access is by qualifying criteria (e.g. rental of a desk or workspace))
Public (anyone may use the equipment (e.g. training may be required and other restrictions may apply))
Membership (access requires membership, which is available to the public or a certain demographic)
Note: For facilities, use this field on a general-terms basis (i.e. if most equipment is available to members, but certain equipment requires staff to operate use Membership). This field can also be used as a property of individual equipment where a facility has different aspect types for different equipment.
Definition: Whether the manufacturing facility is wheelchair accessible.
Format: Free text.
Definition: The equipment available for use at the manufacturing facility.
Format: List the equipment available using the Equipment class.
Definition: Typical manufacturing processes undertaken at the facility.
Format: Reference the relevant Wikipedia article.
Note: For instructions how to do this, please see section 3.5.
Definition: Typical batch size output.
Format: Use one of the following:
0 – 50 units
50 – 500 units
500 – 5000 units
5000 + units
Definition: The size or floor size of a manufacturing facility.
Format: Integer. Unit: square metres (sqm).
Note: This helps a prospective user gauge the scale of a manufacturing facility.
Definition: Storage Capacity of the manufacturing facility.
Format: Free text.
Note: This helps a prospective user gauge how much storage capacity a manufacturing facility has for producing and storing stock.
Definition: Typical materials used by the facility.
Format: Uses the Materials class.
Definition: Certifications obtained by the facility.
Format: List the certifications.
Note: Knowledge of these is imperative informal manufacturing and procurement. For example, aid agencies would be able to see which manufacturing facilities have particular manufacturing licenses, such as medical manufacturing.
Definition: Whether a manufacturing facility has a backup generator.
Format: TRUE / FALSE
Note: Knowledge of this is particiularly useful in places where there are frequent power outages.
Definition: Whether a manufacturing facility has an uninterrupted power supply.
Format: TRUE / FALSE
Definition: Whether a manufacturing facility has road access.
Format: TRUE / FALSE
Definition: Whether a manufacturing facility has a loading dock.
Format: TRUE / FALSE
Definition: The maintenance schedule of a manufacturing facility.
Format: Free text.
Definition: Typical products produced by the facility.
Format: List the typical products produced.
Definition: The Agent which partners or funds the facility.
Format: Uses the Agent class.
Definition: Customer reviews of the facility.
Format: Free text.
This section relates to Circular Economy. The definition of Circular Economy used can be found here.
Definition: Whether a manufacturing facility applies Circular Economy principles.
Format: TRUE / FALSE
Definition: Definition of how Circular Economy principles are applied.
Format: Free text.
Definition: List of the by-products produced.
Format: Uses the Materials class.
Definition: The human capacity of the facility sub-properties.
Definition: The headcount of the facility in FTE, using definition provided here.
Format: Integer.
Note: It is useful for a user / NGO / aid agency to determine the scale of the facility.
Note: Identified as future work.
Definition: The innovation space sub-properties.
Definition: Number of staff supporting the innovation and educational aspects of the facility.
Format: Integer.
Note: It is useful to help determine the scale of the facility.
Definition: The learning resources available at the facility.
Format: List the learning resources.
Note: It is useful for a user to be aware of any learning resources – courses, educational classes etc., a manufacturing facility may have / run.
Definition: The services provided by a manufacturing facility.
Format: List the services provided.
Definition: The footfall at a manufacturing facility.
Format: Integer.
Note: It is useful to help determine the scale of the manufacturing facility.
Definition: Where residencies are available at a manufacturing facility.
Format: TRUE / FALSE
This class incorporates properties relating to ‘Agent’. Mapping initiatives capture different relationships, ranging from owners, managers, funders, contact, people, members, and so on. In order to categorise this, we have standardised the properties of people and organisations, or ‘agent’ as an umbrella term. We have decided to keep people and organisations combined in a single class because they are often interchangeable. For example, an owner could be a person or an organisation.
Some properties such as ‘Contact’ and ‘Social Media’, have been developed further to include important sub-properties. For example, the inclusion of ‘Social Media’ sub-properties was incorporated as many mapped Fab Labs did not have their own URL website, but used Facebook to promote their facility, projects and capabilities.
Where properties are logically grouped, they are presented as collections of sub-properties.
Definition: The name of the Agent.
Note: This could be a name of a person or an organisation.
Definition: A Location.
Format: Uses the Location class.
Definition: An Agent who is the key point of contact for a manufacturing facility or organisation.
Format: Provide the name of the Agent.
Description: A description of a person or an organisation.
Format: Free text.
Definition: Website address.
Format: Provide the relevant URL.
Definition: Languages used by a person or an organisation.
Format: ISO 639-2 or ISO 639-3, for example “en-gb”.
Note: Often manufacturing facilities may be able to provide services dealing in more than one language.
Definition: Mailing list for an organisation.
Definition: Images / Media of a person, an organisation, or relating to the manufacturing facility.
Description: Defined contact information.
Definition: A landline telephone number to contact the facility, person or organisation.
Format: Provide the telephone number.
Definition: A mobile telephone number to contact the facility, person or organisation.
Format: Provide the telephone number.
Definition: A fax number to contact the facility, person or organisation.
Format: Provide the fax number.
Definition: An email address to contact the facility, person or organisation.
Format: Provide the email address.
Definition: A WhatsApp number to contact the facility, person or organisation.
Format: Provide the telephone number.
Note: In some instances, users contact the manufacturers through WhatsApp.
Description: Defined social media information.
Definition: Facebook page URL.
Format: Provide the relevant URL.
Note: Facebook is an important platform for contacting Fablabs / other manufacturing facilities. For example, in the Philippines, a Facebook group has been created for all Fablabs to interact through.
Definition: Twitter page URL.
Format: Provide the relevant URL.
Note: Manufacturing facilities often promote themselves, their activities and projects on Twitter.
Definition: Instagram page handle.
Format: Provide the relevant Instagram handle.
Note: Manufacturing facilities often promote themselves, their activities and projects on Instagram.
Definition: Other URLs.
Format: Provide the relevant URLs.
Note: Other examples of social media associated with a manufacturing facility, organisation or person, unclassified by this standard, but can also be included. For example, fablabs.io or hackerspaces.org.
This class incorporates the important properties relating to ‘Location’.
A simple standardised way of capturing geographical information is imperative – to be able to use a ‘Manufacturing facility’ or ‘Equipment’, a user needs to know its location. The properties below describe the core characteristics which are needed for data collection.
Recording a geographical location differs globally. In the developed world, an ‘Address’ such as a street address, is the norm for recording places of interest. Whereas, in some countries, a description of the location – i.e. ‘near the school, on this corner’, is an adequate description of location. When recording data, the latter qualitative data is subjective, and difficult to quantify. As such, an addressing system which is not a street address is incredibly useful. Consequently, the application of ‘GPS coordinates‘ and ‘What 3 Words‘ have been integrated into the Open Know-Where data model. Both ‘GPS coordinates’ and ‘What 3 Words’ are already in use by many NGOs and Aid Agencies when recording the ‘Location’ of manufacturing facilities and/or ‘Equipment’.
For compatibility with the Humanitarian Exchange Language, use the HXL hashtag chooser.
Where properties are logically grouped, they are presented as collections of sub-properties.
Definition: Address relating to a manufacturing facility, person or organisation.
Format: Use the defined Address sub-properties:
Number
Street
District
City
Region
Country
Postcode
Note: Address has been standardised to include these fields for ease of use, discoverability and merging data sets.
For compatibility with the Humanitarian Exchange Language, use the HXL hashtag chooser.
Definition: The relevant GPS coordinates.
Format: Provide the relevant GPS coordinates, using Decimal Degrees.
Note: GPS coordinates are a common standardised way of detailing a location, used by many aid agencies and mapping initiatives.
Definition: Directions to manufacturing facility, person or organisation.
Format: Free text.
Note: This qualitative data field may be helpful for a difficult to find location, or in an area where the standard address format is irrelevant.
Definition: The What 3 words address for the location.
Definition: What 3 Words phrase for location.
Format: State the What 3 Words phrase.
Note: Often informal settlements, or developing countries do not have street addresses, and communicating GPS coordinates can be tricky and error-prone. What 3 Words is an alternative geospatial address system.
Every location has been a 3m x 3m grid square with a 3 word address. Meaning you can collect, validate and provide any location within a 3m x 3m radius with just 3 words. For example: Barbal’s office in Bristol is recorded as ‘///shares.parks.alone’.
Definition: Language What 3 Words has been recorded in.
Format: ISO 639-2 or ISO 639-3, for example “en-gb”.
Note: What 3 Words is available in 43 different languages and the words for an address are not direct translations of each other.
This class incorporates the properties relating to Equipment. It provides a simple standardised way of capturing the manufacturing capabilities of equipment.
A key aspect which arose, is the scope, and specifically – what are we trying to capture? For example, only machines and digital equipment? Or can we capture hand tools, IT equipment, software, and so on?
Knowing that a CNC router may be important may be useful in decision making for deciding where to get something made, but generic hand tools may not, but that does not preclude them from being included when documenting. This resulted in needing a simple classification system which would standardise a wide variety of Equipment.
The potential list of properties for Equipment is boundless but, Open Know-Where aims to standardise as many as possible. We expect this list to grow with time with different recommended properties for different classes of equipment/tools.
Where properties are logically grouped, they are presented as collections of sub-properties.
Definition: Classification of Equipment.
Format: Provide the Wikipedia URL for the relevant Equipment Type.
Note: For instructions how to do this, please see section 3.5.
Definition: Manufacturing process the Equipment is capable of.
Format: Provide the Wikipedia URL for the relevant manufacturing process.
Note: For instructions how to do this, please see section 3.5.
Definition: Make of the piece of equipment.
Format: Provide the make of the model.
Note: Provides detailed information about a piece of equipment/tool. For example, you can design generically for a 3D printer, or you can design for a specific make or model of 3D printer.
Definition: Model of the piece of Equipment.
Format: Provide the name of the model.
Note: Provides detailed information about a piece of equipment. For example, you can design generically for a 3D printer, or you can design for a specific make or model of 3D printer.
Definition: Serial number of the piece of Equipment.
Format: Provide the serial number of the Equipment.
Definition: Location of the equipment.
Format: Uses Location class.
Identified as future work.
Definition: The condition of the piece of equipment.
Format: State the condition of the piece of equipment.
Note: This provides a user with information surrounding the quality of a piece of equipment/tool, and whether it can complete the task they need it for.
Definition: Additional information about the piece of equipment.
Format: Free text.
Definition: The owner of a piece of equipment.
Format: Uses the Agent class.
Note: To be used when the owner is not the manufacturing facility.
Definition: Quantity of specific piece of equipment.
Format: Integer.
Note: This provides information surrounding the size and scale of a manufacturing facility and implicates batch size.
Definition: The throughput of the piece of equipment.
Format: Free text.
Definition: The power rating of the piece of equipment.
Format: Integer. Unit: W.
Definition: The materials that can be used with the piece of equipment.
Format: Uses the Materials Classification.
Definition: When the equipment was last maintained.
Format: Free text.
Definition: How often the piece of equipment is used.
Format: Free text.
Definition: The tolerance class of the piece of equipment.
Format: In accordance with ISO 2768.
Definition: The current firmware used by the piece of equipment.
Format: Free text.
Defintion: Whether the piece of equipment has an uninterrupted power supply.
Format: TRUE / FALSE
These are specialised properties that only apply to specific types of equipment. In this section the list of Equipment Properties provided is extensible, and hasn’t attempted to be exhaustive. The Equipment sub-properties provided represent a significant proportion of equipment used in manufacturing facilities. The below list of defined sub-properties has been provided in alphabetical order for ease of use and reference.
Definition: The number of axes.
Format: Integer.
Definition: The bed size of a piece of equipment.
Format: Integer. Unit: mm.
Definition: Length of bending.
Format: Integer. Unit: mm.
Definition: The dimensions of the build.
Format: Integer. Unit: mm^3.
Definition: The diameter of the chuck jaw.
Format: Integer. Unit: mm.
Defintion: The size of the collet.
Format: Integer. Unit: mm.
Definition: Whether the equipment is computer controlled.
Format: TRUE / FALSE
Definition: Distance of Cross Slide Travel.
Format: Integer. Unit: mm.
Definition: Daylight / Opening size.
Format: Integer. Unit: mm.
Definition: The distance between a centre in the headstock and a centre in the tailstock.
Format: Integer. Unit: mm.
Definition: Ejector Thread Size.
Format: Integer. Unit: mm.
Definition: Is there an extraction system?
Format: TRUE / FALSE
Definition: The material the gantry is made out of.
Format: Uses Material class.
Definition: Whether the equipment is hot runner compatible.
Format: TRUE / FALSE
Definition: Power consumption used.
Format: Integer. Unit: W.
Definition: Thickness of layer.
Format: Integer. Unit: mm.
Definition: Diameter of the locating ring.
Format: Integer. Unit: mm.
Definition: The type of material worked on the equipment.
Format: METAL / NON-METAL
Definition: The maximum clamping force of the equipment.
Format: Integer. Unit: t.
Definition: The maximum shot volume.
Format: Integer. Unit: mm^3.
Definition: The maximum spindle speed.
Format: Integer. Unit: rpm.
Definition: The maximum tie bar distance.
Format: Integer. Unit: mm.
Definition: Size of nozzle.
Format: Integer. Unit: mm.
Definition: Radius of the nozzle.
Format: Integer. Unit: mm.
Definition: The optimal material for use with a piece of equipment.
Format: Uses Material class.
Definition: How the part is fixed.
Format: Free text.
Definition: The press force.
Format: Integer. Unit: kN.
Definition: The punch force.
Format: Integer. Unit: kN.
Defintion: The spindle rotation.
Format: Integer. Unit: Deg.
Definition: The number of stations.
Format: Integer.
Definition: The size of the station.
Format: Integer. Unit: mm.
Definition: Distance of tailstock sleeve travel.
Format: Integer. Unit: mm.
Definition: The tooling type.
Format: Free text.
Example: Forming, Piercing.
Definition: The turning capacity / swing of a piece of equipment.
Format: Integer. Unit: mm.
Definition: The working surface of a piece of equipment.
Format: Integer. Unit: mm.
Definition: Distance of X travel.
Format: Integer. Unit: mm.
Definition: Distance of Y travel.
Format: Integer. Unit: mm.
Definition: Distance of Z travel.
Format: Integer. Unit: mm.
In this following section there is a mapping of sub-properties to type.
TYPE | PROPERTIES / CAPABILITIES |
3D Printer – FDM | |
3D Printer – SLA | |
3D Printer – SLS | |
[In development with the Equipment Sub-group] | |
Embroidery Machine | [In development with the Equipment Sub-group] |
[In development with the Equipment Sub-group] |
This class incorporates properties relating to ƒwhat 3s. In general, materials are outside of the scope for Open Know-Where, however a simple standardised way of capturing materials is important. For instance, to be able to use a manufacturing facility, a user needs to be aware of what materials are available or commonly used at a specific location, or to use a piece of equipment, a user will need to know what material the machine is callibrated for. Materials are decisive facet of whether something can be made at a specific manufacturing facility.
Consequently, a simple standardised way of capturing materials is provided by Open Know-Where, but future work to fully standardise material classifications may be needed, and is currently being investigated by the Internet of Production Alliance.
Where properties are logically grouped, they are presented as collections of sub-properties.
Definition: The manufacturer of the material type.
Format: Free text.
Definition: The brand of the material type.
Format: Free text.
Definition: Place of immediate supply to the facility.
Format: Use Location class.
Note: This is not to be used for the location of the manufacturer of the material, but where the facility gets the material from.
Definition: Type of material.
Format: Provide the Wikiepedia URL for the relevant material type.
Note: For instructions how to do this, please see section 3.5.
In order to support interoperability across datasets, this section sets out a standardised list of material types used in manufacturing.The list is not intended to be exhaustive, but extensive enough to capture the most common types of materials.
In compiling the list, the level of specificity was deemed important. If the list is too high-level, it would not help a buyer or maker determine if a facility is appropriate for their specific needs. If it is too detailed a search could exclude equipment that could easily be applied to similar materials. The figure below provides examples of the level of specificity for different material types, which was used to guide decision making in producing this list.
Headings are included in the list to aid navigation by users of the standard, but do not form part of the classification scheme and should not be used in Open Know-Where datasets.
This class incorporates properties relating to record data. By “record data” we mean information about who created the data and how up to date it is. In highly dynamic environments, datasets can quickly become obsolete and so it can be helpful to share information about the provenance of the data.
Defintion: Date record was created.
Format: Recommended practice is to use ISO 8601, i.e the format YYYY-MM-DD
.
Definition:Agent who created the resource.
Format: Use Agent class.
Definition: Date the record was updated.
Format: Recommended practice is to use ISO 8601, i.e the format YYYY-MM-DD
.
Defintion: The Agent who updated the record.
Format: Use the Agent class.
Definition: Date the data in the record was verified.
Format: Recommended practice is to use ISO 8601, i.e. the format YYYY-MM-DD
.
Defintion: The agent who verified the data in the record.
Format: Use the Agent class.
Definition: Method of data collection.
Format: Free text.
Example: Interview, Survey, Field Visit, and so on.
The Open Know-Where specification is governed by the Open Know-Where working group.
Changes to the specification are proposed in StandardsRepo.
Changes are voted on during meetings of the Open Know-Where working group.
The project is being led by Anna Sera Lowe of Manufacturing Change and is sponsored by the Shuttleworth Foundation.