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##Print Time Estimates
Print Time Estimates
With .06mm thickness, ~16 hours depending on size<br />
#With .06mm thickness, ~16 hours depending on size<br />
With .25mm thickness, ~4 hours depending on size<br />
#With .25mm thickness, ~4 hours depending on size<br />
## assembly time Estimate
Assembly time Estimate
10 minutes
#10 minutes
# Including drawings or pictures of the device at stage of assembly at minimum. (http://www.appropedia.org/Special:Upload)
Including drawings or pictures of the device at stage of assembly at minimum. (http://www.appropedia.org/Special:Upload)





Revision as of 17:59, 3 December 2014

Custom Shovel Handle

Project developed by Shane Clifford

Template:Statusboxtop Template:Status-design Template:Status-prototype You can help Appropedia by contributing to the next step in this OSAT's status. Template:Boxbottom

Abstract

This is a shovel handle to either replace broken ones, or add one in where the shovel/hoe/whatever tool has only the wooden handle. Grips such as these can offer not only greater leverage but also comfort and wrist relief preventing long term injuries such as carpal tunnel. Due to tools having different diameters and users wanting different sized grips, everything about this has been mapped to easily changed variables which require only the easily measured constants inputted; all the trigonometry for the supports with be automatically adjusted. The number and placement of screw holes and also thickness and length of the section that overlaps the shovel can also be easily altered to user preference for strength.

  1. Picture of completed print using
    File:Name-of-your-image.png

Bill of Materials

  1. 2-6 screws to connect grip to shaft
  2. screwdriver
  3. File for removing support residue

Scad and STL files available here http://www.thingiverse.com/thing:555240

Tools needed for fabrication of the OSAT

  1. MOST Delta RepRap or similar RepRap 3-D printer

Skills and Knowledge Necessary to Make the OSAT

Nothing more than basic 3D printing and altering well commented variables to get desired size required

Technical Specifications and Assembly Instructions

I used Openscad for the model, Cura for the slicer, and Pronterface for the controller

  1. Open the .SCAD file in Openscad, and adjust the given parameters to fit your needs. All units are in millimeters
  2. Compile and render the file into a new .STL file
  3. Open the .STL file in Cura
  4. Shovel Handle On Side.PNG
    It will likely be vertical, so rotate the model 90 degrees so that it is on its "back"
  5. Settings circled.PNG
    In the support section of the left toolbar, select "support type" to "touching buildplate"
  6. Support Circled.PNG
    In the Expert Configurations, I suggest increasing the "Distance Z" to .20-.30 to allow the supports to be disconnected easier and leave less residue on the printed model
  7. Choose speeds and layer thickness as ideal for your printer and desired strength
  8. Save the Gcode and then load it into Pronterface and print away
  9. When it is done printing, carefully snap off supprt structure
  10. Use a metal or wood file to remove excess plastic from support residue
  11. Fit handle over the end of your tool, and screw into place


Print Time Estimates

  1. With .06mm thickness, ~16 hours depending on size
  2. With .25mm thickness, ~4 hours depending on size

Assembly time Estimate

  1. 10 minutes

Including drawings or pictures of the device at stage of assembly at minimum. (http://www.appropedia.org/Special:Upload)


Common Problems and Solutions

  • Include common mistakes/problems to avoid in building your OSAT and how to overcome them

Cost savings

  • If your solution is not a low cost one then it is not really appropriate.
  1. Estimate your costs
  2. Find a commercial equivalent
  3. Calculate $ savings and % savings

References

  • 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: [1]
  1. 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]]. =Template=



Copy the wiki markup below to your page to use as a template

Title of the device or system

Project developed by [your name linked to your user account]

Template:Statusboxtop Template:Status-design Template:Status-prototype You can help Appropedia by contributing to the next step in this OSAT's status. Template:Boxbottom

Abstract

  1. 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?
  2. Picture of completed print using
    File:Name-of-your-image.png

Bill of Materials

  1. Provide a full BOM -- Materials needed for fabrication of device and alternative materials if they are not available, prices/sources of non-printable parts
    1. Upload and link to all source files
    2. Upload and link to all STLs

Tools needed for fabrication of the OSAT

  1. MOST Delta RepRap or similar RepRap 3-D printer

Skills and Knowledge Necessary to Make the OSAT

  • If you used special skill – link to relevant wikipedia or wikiversity articles/courses

Technical Specifications and Assembly Instructions

  1. 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.
  2. Include print time estimate
  3. Include assembly time estimate
  4. Including drawings or pictures of the device at stage of assembly at minimum. (http://www.appropedia.org/Special:Upload)
  5. Consider video if appropriate
Example video summary of textbook
Error in widget YouTube: Unable to load template 'wiki:YouTube'

Common Problems and Solutions

  • Include common mistakes/problems to avoid in building your OSAT and how to overcome them

Cost savings

  • If your solution is not a low cost one then it is not really appropriate.
  1. Estimate your costs
  2. Find a commercial equivalent
  3. Calculate $ savings and % savings

References

  • 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: [1]
  1. 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]].

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