spacedecentral / coral Goto Github PK

Identify the different possible manufacturing methods for each of the relevant lunar materials.

Research the different technologies, strategies or materials for efficient thermal management for surviving the harsh days and nights of the Moon, including new technologies and systems that are likely to be used on commercial space vehicles. Consider the possibility of surviving a lunar night.

List each technology by the following factors:

Approximate Level of Maturity on a 1-to-10 TRL scale
Approximate Level of Complexity on a 1-to-10 point scale, 1 being the least, 10 being the most.
Approximate Level of Reliability on a 1-to-10 point scale, 1 being the least, 10 being the most.
Approximate Cost Impact on a 1-to-10 point scale, 1 being the least, 10 being the most.
Approximate Availability in the Marketplace on a 1-to-10 point scale, 1 being the least, 10 being the most.
Particular benefits of each technology.
Particular detriments of each technology.
Category (Active or Passive)

Document these results above here: https://docs.google.com/spreadsheets/d/199wz-e5hkhjWGHNJFy-9Gf2A8XoLlf8l2PIlLoFVSCY/edit#gid=0

Also, any source material for the listed factors above needs to be retained in the research documentation for peer review purposes. It is understood that some of the factors may be educated guesses or outright assumptions from the outset of the research phase, and all factors will be fully vetted during the peer review process for validity and accuracy.

Good source to begin:
https://www.nasa.gov/sites/default/files/atoms/files/2015_nasa_technology_roadmaps_ta_14_thermal_management_final.pdf

Research:
Can the waste material of the process be used elsewhere?
How is the waste material handled?
Does the waste material violate Planetary Protection principles?

Design a mission logo for Coral. It can be a logo or a mission patch, but it has to be legible even when it is very small. Please use only open source/public domain images, or your own.
Submit a png file for approval. If you have questions about the design, please comment here.

How will the mining equipment be able to characterize the material it extracts?
For example, in a given scoop of loose regolith (if that´s what we are mining), how will we determine:
What kinds of resources are present?
In what chemical forms are they present?
In what physical forms are they present?
How are they distributed across the surface?

Identify and research the different components needed for assembling structures, such as robotic arms, cranes, printing heads, etc.
Research areas include existing industrial processes, cutting-edge hardware, and everything in between. Research should consider how manufacturing processes influence the ease and efficiency of assembly.

Defining the layer as 10m above the surface to similar density to earth soil in depth, in between will be less dense than earthen soils the static attraction well known so certain geophysical properties are not really well described or experimented with.
It seems essential to characterize all the properties of this layer, my view that it can be a basis for filament and sintering media and additives to print with, another to find an adobe idea sans water to make it as a structural component of many uses establishing a port. 
Consider growing hemp for the fiber and shiv for mortar based compressive loads with R-4.2/inch and fungal resistance, moisture transport, high heat resistance less spalling and enough mass, hemp ropes sailed most freight before steam, not needing wire rope where possible at scale to be considered.
Being new to focusing on space, these are fresh ideas to me, looking promising.

Cheers, tom

This is a test issue please leave it alone.

Subsystem research:

• Structure
• Attitude Determination and Control
• Telemetry, Tracking, and Command
• Communication
• Power
• Thermal
• Propulsion

Transforming collected resources into a form ready for manufacturing.
Research how the different materials might have different processing requirements and how that might influence the overall design.

new test

In response to #36 to open a new subtask and add your name to the title.

Can the processed material be stored or must it be used right away?
If stored, does it need to go through another process prior to use?
How/where is the processed material stored?
Is there a time limit for storage?
Is there material boil-off if stored?
Does it require energy to store or to keep the material used?

A crucial part of the whole Coral initiative is to find ways to apply the regolith 3D printing technology and make it useful for other organizations and the projects they are trying to establish on the Moon.

Please refer to this list of potential customers:
https://docs.google.com/document/d/15HcfIQkDUliZKu9PlwVt1PqApg9IrTwN2fTqkzlTzlE/edit

Also, please read the discussion in Section 4 of the Technology Development Trajectory for Coral: https://docs.google.com/document/d/1oQVP1Us5rJSj7To_HNFY3TLgyW8Vg5KMRbJPQo-bUqg/edit

Please look at the posters and other photos in this folder from the 2018 NASA Exploration Science Forum that suggest potential customers and partners with their needs/projects for 3D printing:
https://drive.google.com/drive/folders/1X9AltqNWts1Gb68Ws0ox5w2MUXAO3lb_

Find research papers they may have written on the key Coral topics: Moon, regolith, 3D printing. Provide for a way to record and update communications with the scientists and the results.

This is just another test issue

The vehicle hardware and the software that controls it.
Note: Coral will be a payload on a 3rd party vehicle. Research should focus on available, in-progress, and rumored vehicles that may operate on the lunar surface.

• Create an instructional file in the root directory (Contributing Guide). Perhaps we have a "beginner" version that does detailed step by step for creating a pull request.

This issue is in response to #41

I have been involved with Lunar exploration/exploitation discussions since the mid-1990's, primarily through the auspices of the Artemis Society, and its sister entity, the Moon Society. Of high interest to the Moon Society team has always been the development of some suitable means of ISRU construction for habitations and workspaces. With Coral, I see a very familiar desire. I also see more viability to the Coral plan than I had seen with the Moon Society efforts, chiefly in the ability to fund and construct a working system.

As an engineer, design and systems, I am especially encouraged by the concrete steps being taken via Github management of tasks and genuine level of expertise in working on such a system. We're going to have some fun getting the team fully organized and moving, but I see that we'll be able to reliably manage the effort with the tools available.

Coral should be a relatively straight-forward integration task as we define the needed requirements and assay the available hardware items. The only caveat that I have to offer is that we need to arrive a basic architecture for the system as soon as possible, and then stick to it as closely as we can. Mission creep is a killer on any big design like this, and even more so with distributed teams.

Requirement Traceability Matrix (RTM) captures all requirements proposed by the client or subsystem development team and their traceability in a single document delivered at the conclusion of the life-cycle. In other words, it is a document that maps and traces user requirement with test cases.

See RTM template

Research communication strategies/hardware to/from Earth and/or support vehicles/satellites.
Consider the available tools/systems that can be used and possible partnerships with simultaneous missions.

Define methods to be used for resource detection on the lunar surface - Assuming we already know what´s available to mine in the region, consider the methods of how to detect it in the imediate surroundings of the mining equipment.

This issue is in response to #36

Identify and research different assembly techniques that could work in the lunar environment, with remote control.
Research areas include existing industrial processes, cutting-edge hardware, and everything in between. Research should consider how manufacturing processes influence the ease and efficiency of assembly.

This is a general task that encompasses the literature review for Coral.

The literature review is organized in the Library directory. The easy access URL is: http://bit.ly/Coral_Library

• Add new PDFs that you find here (if possible, download a copy and upload it here)
• Update the _Library_Index file with the appropriate columns as in the spreadsheet
• Link the Title of the document to the PDF (ideally the PDF in the Library)
  • If you were unable to download a PDF, hyperlink the external source in the Index file

Create a Google spreadsheet listing (and linking) the possible end users/partners found, their potential interest/interface with Coral, the status of their enterprise, main stakeholders, and other pertinent information.

How to complete this task:

Create a new issue (issues are tasks). The title of the new issue should be "Literature review on robotic elements - name " where name is your name.

In the body of the issue, add a reference to this issue (e.g., "This issue is in response to #39")
Move your issue to the "In progress" column. This is to assure you will get assigned points for this task.

https://drive.google.com/drive/folders/1Cn1-CJEmBwlEBNHqH4GXTT3LoZFfGCqc

Conduct a literature review to identify the several robotic elements that will constitute the full Coral ensemble and its implementation. Document this review in a Google Doc.
These systems include at a minimum excavation; regolith transport, regolith sorting, beneficiation, and processing into feedstock; 3D printing.

This task will require extensive research into industrial robotics to comprehend what systems are most appropriate and effective for this type of operation. Everyone wants to be creative in starting a new project, but there is already a long and rich history of industrial robots. Perhaps the first “integrated” production line was the Robogate at the GM Buick-Oldsmobile-Cadillac Division in Hamtramck (Poletown) Michigan, circa 1986. Robogate consisted of 200 robots making the assembly line for the “common platform,” the combination of the chassis and body of the automobiles. A computer-controlled just in time inventory (JITI) system brought all the parts to Robogate as they were needed. The JITI delivered stacks of sheet metal pre-cut to the required shape to feed Robogate. The robots would take the sheet metal, bend it to the correct shape to make the body of many different models of car, weld it in place, and pass it on to the next station. Shaped, rolled steel for the chassis and flat sheet metal for the bodies came into the Robogate along the assembly line and the complete body-chassis platform of the car came out at the end.

A second aspect of multiple robots that are free to move and position themselves autonomously is what is called a “robot swarm.” Around 2002, iRobot had a contract from NASA Ames to develop the robot swarm for small excavator and bulldozer type machines based on their Packbot.

No doubt there have been many other comparable projects since that time. This project starts with a thorough literature review and critical evaluation of projects and systems of potential relevance. This review must define the criteria by which to conduct this evaluation to select the best options and directions for future development.

This research should lead to a description of the “operating system” to multiple robots to work autonomously together to perform the repertoire of Coral operations and tasks.

The ways that robotic assembly could work. Research areas include existing industrial processes, cutting edge hardware, and everything in between. Research should consider how manufacturing processes influence the ease and efficiency of assembly.

Update the Coral Wiki Index with all of the reference documents

https://docs.google.com/spreadsheets/d/1n3D1VUeVmAV20cNGhW64YN3kP86gg82sTxzIaTfFgFM/edit

This issue is in response to #41

Create a Google spreadsheet listing (and linking) the papers found, their authors, keywords, main subject, relevance to Coral, the status of the research, summary of results and other pertinent information.

Research the different technologies for generating/storing power, including new technologies and systems that are likely to be used on commercial space vehicles. Consider the possible high requirement of energy for processing the regolith and how that may influence the design.

List each technology by the following factors:

• Approximate Level of Maturity on a 1-to-9 TRL scale
• Approximate Level of Complexity on a 1-to-10 point scale, 1 being the least, 10 being the most.
• Approximate Level of Reliability on a 1-to-10 point scale, 1 being the least, 10 being the most.
• Approximate Cost Impact on a 1-to-10 point scale, 1 being the least, 10 being the most.
• Approximate Availability in the Marketplace on a 1-to-10 point scale, 1 being the least, 10 being the most.
• Approximate mass/per kilowatt, in kg and lbm.
• Particular benefits of each technology.
• Particular detriments of each technology.

Document these results above here: https://docs.google.com/spreadsheets/d/1-EBZgltVHDXnP13Wnn71i3uRfV2lRPFsy1u-j3tIBFg/edit#gid=0

Also, any source material for the listed factors above needs to be retained in the research documentation for peer review purposes. It is understood that some of the factors may be educated guesses or outright assumptions from the outset of the research phase, and all factors will be fully vetted during the peer review process for validity and accuracy.

How to complete this task:

1. Create a new issue (issues are tasks). The title of the new issue should be "My thoughts - name " where name is your name.
2. In the body of the issue, add a reference to this issue (e.g., "This issue is in response to #41")
3. Move your issue to the "In progress" column. This is to assure you will get assigned points for this task.
4. Write a 2-3 paragraph essay on your thoughts in relation to Coral. try to answer the following:

• What do you envision when you think about the Coral Mission?
• What are some of your expectations for this mission?
• How do you think we will achieve the long-term objective of building a habitat on the moon?
• If you had to describe a concept for the entire mission right now, what would it be?

5. Please place your document in [this folder]

(https://drive.google.com/drive/folders/1hrcON9dMOrLtYwJhgslnBvT7cnDvPPce?usp=sharing) in our shared google drive.

Define methods for extraction of material from the lunar surface. Consider how to separate the desired material and transfer it to the processor. Different materials will have different processes and manufactured outcomes, so research should also consider possible use cases that require a given resource.

Please open a new subtask and add your name to the title.

Research and collect information on possible end users/partners for the Coral mission, their potential interest/interface with Coral, the status of their enterprise, main stakeholders, and other pertinent information. Add this information to a Googe Doc.

This issue is in response to #41

(@erikkulu I edited this because my instructions post was pointing this to the wrong reference issue)

This is going to be a continuous effort, and if you are interested in helping, please comment in this issue.
Begin with tasks in the "Backlog" and "In Progress" columns

Verify:

• Title; is it descriptive of what the task is?
• Description:
  *Is it clear?
  *Does it have all the information needed for the realization of the task?
  *Is it technically sound?
  *Does it clearly state the expected output?
• Labels: are they relevant and sufficient?

If the tasks do not meet the criteria above, please tag it with the label "bug" and add your suggestions as a comment in the respective task.

This task is for @timallard's response to #41

@timallard Please add the documents you shared with me to this folder: https://drive.google.com/drive/folders/1hrcON9dMOrLtYwJhgslnBvT7cnDvPPce?usp=sharing

Define whether the mined material will be stored prior to being processed. If so, identify the requirements for such storage.

Assuming we already know what´s available to mine, consider the methods of extracting regolith, separating the desired material and transfer it to the processor. Different materials will have different processes and manufactured outcomes, so research should also consider possible use cases that require a given resource.

Testing the epic issue - not quite

Conduct a trade study of the processing methods for all relevant lunar materials with the objective to define whether there are processes- and thus materials - that might be more suited for 3D printing on the moon. Consider:

• Method
• Energy consumption
• Thermal tolerance (min/max)
• Size of processing equipment,
• Complexity of the processing system,
• Processing time,
• Processed product-to-waste ratio,
• Stability requirement,
• Ease of self-maintenance.
• Mass (kg)
• Power (Watt per Kg)
• Volume

Related to #93 and #23

Compile and list robots research into a Google spreadsheet, with the identification of main pertinent topics, in a way that enables comparisons between the different robotic solutions for similar applications.

Considering our constraint of staying on the lander and relying on the material available nearby, conduct a trade study to determine the best lunar feedstock composition. Gather data on:

• The different relevant lunar materials (raw regolith and separated materials)
• The rate of said material to 100g of raw regolith
• The best way to gather the material (scoop, magnetic, electrostatic, etc)
• The power/method required to separate the material
• The manufacturing methods applicable to said material
• The power required to process the material
• Output product composition

Related to #15 and #93

yeah now I´m testing the epic issue

Task
Generate a use case of the Coral system.

Description
This task entails identifying the use case(s) and actor(s) in relation to Coral's operational mission requirements (See SMAD L65) - how the system operates and how the users interact with the system to achieve the mission’s broad objectives (see #67). The deliverable for this task shall include (a means to generate) a use case diagram with the aforementioned items.

Note
Completion of this task may supplement (if not, satisfy) the delivery of a ConOps document

Working document started here
https://drive.google.com/file/d/16eX66ooxRAy6gjUGXZz9eGm8x6nWDBVA/view?usp=sharing

Develop a strategy to define the several robotic elements that will constitute the full Coral ensemble and its implementation. These systems include at a minimum excavation; regolith transport, regolith sorting, beneficiation, and processing into feedstock; 3D printing.

After you have completed 3 other tasks in Coral, you can be considered an official team member.

How to complete this task:

1. Create a new issue. The title of the new issue should be "Add name to Team Directory" where name is your name.
2. In the body of the issue, add a link to three Coral tasks you have completed, in addition to:

• A reference to this issue (e.g., "This issue is in response to #42")
• Your full name
• Your bio that includes your background, interests, work/academic experience
• Your headshot

3. Move your subtask to the "Review" column

Reference:
https://docs.google.com/document/d/1FEdrPRC1TXJ--cqNgsZDsncNLiDpYX8Iw6v3Tmu7Foo/edit#

Note: Team members will be organized by activity level: once you become inactive for 4 weeks you will be removed from the team directory.