777 OSAT projects 2019
Assignment[edit | edit source]
- Identify an OSAT that you would like to design to be a 3D printable technology
- Make sure someone else has not already done it : existing designs here. Also check former years 2014, 2015, 2016, 2018, (You can choose to do a major improvement on past design)
- Reserve your OSAT by signature tagging with ~~~~ next to the OSAT on the list generated by the Appropedia community: Requests for 3-D printable open source appropriate technology. You can add your own ideas to the list, more than one of you can tackle the same tech in a different way, you may improve upon existing designs if you do so in a significant way. Double check someone else has not already done a better job - use http://yeggi.com
- Design 3D printable components with ONLY OS CAD packages (e.g. OpenSCAD, FreeCAD, or Blender) for FreeCAD put on https://www.youmagine.com/ and link back to it on Appropedia.
- Create an Appropedia page for your project. (Easiest way to create a page is put double square brackets around your project title on the reservation list - this will create a red hyperlink to it)
- Include the following sections on your page using the template below (copy and paste wiki markup into your page)
- Add picture and link to your project page in gallery below.
- Print component and bring to class/ online students drop it off at Dr. Pearce's office box
Grading[edit | edit source]
- 20% Print quality
- 30% Documentation
- 25% Design (design for printing, plastic minimization)
- 25% Function - Is it OSAT? Does it work?
Automatic reductions: -50% no source or the use of non-OS software -10% per day for late
Gallery[edit | edit source]
Add your image and link the gallery below in a single line after the last one in the list
2L Seed spreader 
Parametric brace for broken or sprained thumb "Thumb Spike"
Manual Pea Sheller 
Menstrual Cycle Tracker 
Fully Printable Berry Picker 
T Fitting 
Potato Ricer 
Modified cap for turning two-liter bottle into sharps disposal container 
Template[edit | edit source]
Copy the wiki markup below to your page to use as a template
Project Title[edit | edit source]
Project developed by 
|This Open Source Appropriate Technology has been designed but not yet tested — use at your own risk.|
|This Open Source Appropriate Technology has been prototyped.|
Abstract[edit | edit source]
- Paragraph description of the OSAT - why is it Appropriate? What need does it fulfil? Are there case studies you have found of a technology being used successfully?
- Picture of completed print using your printer
Bill of Materials[edit | edit source]
- Provide a full BOM -- Materials needed for fabrication of device and alternative materials if they are not available, prices/sources of non-printable parts
- Upload and link to all source files from open source CAD
- Upload and link to all STLs
Tools needed for fabrication of the OSAT[edit | edit source]
- MOST Delta RepRap or similar RepRap 3-D printer
Skills and Knowledge Necessary to Make the OSAT[edit | edit source]
- If you used special skill – link to relevant Wikipedia or Wikiversity articles/courses
Technical Specifications and Assembly Instructions[edit | edit source]
- Provide directions for print/assembly - be detailed enough in your “how to” to ensure that someone could construct the device from your description. Consider the elegance of IKEA like instructions.
- Include print time estimate
- Include assembly time estimate
- Including drawings or pictures of the device at stage of assembly at minimum. (Upload)
- Consider video if appropriate
|Example video summary of textbook|
Common Problems and Solutions[edit | edit source]
- Include common mistakes/problems to avoid in building your OSAT and how to overcome them
Cost savings[edit | edit source]
- If your solution is not a low cost one then it is not really appropriate.
- Estimate your costs
- Find a commercial equivalent, cite it and put the [url in square brackets]
- Calculate $ savings and % savings
Benefited Internet Communities[edit | edit source]
- Name and add links to at least 5 using single brackets around [url name]
References[edit | edit source]
- The sources of information (e.g. engineering handbooks, journal articles, government documents, webpages, books, magazine articles etc.). References should use the <ref> </ref> and <references/> tags and can be in any format but should include all the information necessary for someone else to find the same information you did. For example: 
- web page: Department of Energy (DOE) Landscaping and Energy Efficiency, DOE/GO-10095 (1995) Available: http://www.eren.doe.gov/erec/factsheets/landscape.html
Based on the developmental needs addressed (e.g. food, heat, electricity, clean water, health care, etc.) be sure to label your device in the proper categories e.g. use [[Category:Water]]. Be sure to categorize your device so that it will be easy to find – for example “Low voltage connection basics” is categorized in [[Category:How tos]] [[Category:Electricity]] [[Category:Electric lighting]].