Appropedia

Non-drive side crank

Device
Non-drive side crank
Non-Drive Side Crank.JPG
Keywords 3D printing, bicycle, bike crank, tool
Uses transportation, development
Authors zhine kang
Status prototype
Made? Yes
Replicated? Yes
Designed in United States
Materials Plastic
Cost USD $ 2.00
Sustainable Development Goals SDG09 Industry innovation and infrastructure
Documentation data
Language English
Manifest data
Language English
Updated 2020-06-04
Author Kathy Nativi
Author affiliation Appropedia
Author email info@appropedia.org
This page was part of an MTU course MSE4777 OA and MSE4777 OB/MSE5777/EE4777/EE5777: Open-source 3-D printingTap for morePlease leave comments using the talk page. The course runs in the Fall semester. It is not open edit.

Non-Drive Side CrankEdit

Project developed by Zhinek (talk) 07:19, 04 December 2014 (PST)

  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.


AbstractEdit

  1. The project is a part of the bike, offered by Dr. John Gershenson.
  2. It is designed based on a real drive-side model since I only find drive-side model from the lab.
  3. I choose to design the non-drive side part since the strength of the gear can not be reached by using plastic material to print.
  4. All size are matched with the original one.

  • Non-Drive Side Crank

Bill of MaterialsEdit

  1. 3D Printer
  2. Drive Side Crank Model
  3. Plastic filament

link to all source filesEdit

  1. File:Non-Drive Side Crank.scad
  2. File:Non-Drive Side Crank.stl

Tools needed for fabrication of the OSATEdit

Skills and Knowledge Necessary to Make the OSATEdit

  • Basic knowledge for 3D printing

Technical Specifications and Assembly InstructionsEdit

  1. Print from the base
  2. There is a curve that printed in the air, it's the most difficult part
  3. It can be printed but with low quality, needs to be corrected and polished
  4. Estimated printing time: 37min
  5. Estimated processing time: 15 min

Common Problems and SolutionsEdit

  1. It is made of plastic so it may not be as strong as metal.
  2. The edge of the crank is not perfectly smooth

Cost savingsEdit

  1. Estimated costs: less than $2 per crank (including the cost of the filament and electricity)
  2. Commercial equivalent: more than $10
  3. Save at least $8/80% of the cost

ReferencesEdit

  1. Google picture for bike parts.
  2. Ebay website for pricing
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