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{{Infobox device
|title=Custom Shovel Handle
|image=Open_Source_Shovel_Handle.jpg
|description=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.
|keywords=3D printing, shovel, handle, grip
|intended-use=agriculture, hobbyism
|development-stage=prototype
|made=Yes
|made-independently=No
|countries-of-design=United States
|project-affiliation=Category:MTU, Category:MOST
|main-materials=Plastic
|estimated-cost-amount=3.30
|estimated-cost-currency=USD
|sustainable-development-goal=Sustainable Development Goal 9
|contact-affiliation=MOST
|authors=User:Kylar stern
|manufacturing-files=http://www.thingiverse.com/thing:555240
|documentation-language=English
|manifest-language=English
|manifest-date-updated=2020-06-04
|manifest-author-name=Kathy Nativi
|manifest-author-affiliation=Appropedia
|manifest-author-email=info@appropedia.org
}}
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==Custom Shovel Handle==
==Custom Shovel Handle==
Project developed by [[User:kylar stern|Shane Clifford]]
Project developed by [[User:kylar stern|Shane Clifford]]
{{Statusboxtop}}
{{Status|design}}
{{status-design}}
{{Status|prototype}}
{{status-prototype}}
 
You can help Appropedia by contributing to the next step in this [[OSAT]]'s [[:Category:Status|status]].
{{boxbottom}}


==Abstract==
==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.
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.
# Picture of completed print using [[image:name-of-your-image.png|500px|right]]


== Bill of Materials==
== Bill of Materials==
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Assembly time Estimate
Assembly time Estimate
#10 minutes  
#10 minutes  
<gallery caption="Final Result">
[[File:Shovel_with_Handle.jpg|400px|left]][[File:Open_Source_Shovel_Handle.jpg|600px|right]]{{clear}}
[[File:Open_Source_Shovel_Handle.jpg]]
((Note that a handle like this would be better suited for an implement with a shorter shaft, this was just the only shovel like that we had around the house I could put a handle on))
</gallery>
 
=== Common Problems and Solutions===
* Include common mistakes/problems to avoid in building your OSAT and how to overcome them


== Cost savings==
== Cost savings==
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==References==
==References==
 
<references/>
* The sources of information (e.g. engineering handbooks, journal articles, government documents, webpages, books, magazine articles etc.). References should use the <nowiki> <ref> </ref> and <references/>  </nowiki>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: <ref> web page: Department of Energy (DOE) Landscaping and Energy Efficiency, DOE/GO-10095 (1995) Available: http://www.eren.doe.gov/erec/factsheets/landscape.html</ref>
[[Category:Agriculture]]
 
[[Category:Tools]]
<references/>
[[Category:Garage]]
<nowiki>
[[Category:Snow]]
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:OSAT 3D-Printable Designs]]
[[Category:How tos]]
[[Category:Electricity]]
[[Category:Electric lighting]].
 
 


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Revision as of 13:24, 17 October 2020

FA info icon.svg Angle down icon.svg Device data
Manufacturing files http://www.thingiverse.com/thing:555240
Hardware license CERN-OHL-S
Certifications Start OSHWA certification

Custom Shovel Handle

Project developed by Shane Clifford Template:Status Template:Status


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.

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
Shovel with Handle.jpg
Open Source Shovel Handle.jpg

((Note that a handle like this would be better suited for an implement with a shorter shaft, this was just the only shovel like that we had around the house I could put a handle on))

Cost savings

  1. My design used $3.30 in plastic at $30/Kg
  2. Commercial Shovel Handle like this will cost around 10 dollars
  3. The benefit is not so much in cost savings, although they are there, but the fact that this can be made to easily fit any and all shovel/hoe/tools with long wooden shafts where this would be desired on the end and the ability for a village to make them themselves instead of needing them delivered from some large manufacturing facility

References


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