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Brake calliper of blackmamba bicycle

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Revision as of 12:08, 4 December 2014 by Rivu (Talk | Contributions) (Tools needed for fabrication of the OSAT)

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MOST Delta filament as guide.JPG This page was part of an MTU course MSE4777 OA and MSE4777 OB/MSE5777/EE4777/EE5777: Open-source 3-D printing

Please leave comments using the discussion tab. The course runs in the Fall semester. It is not open edit.

Brake Calliper of BlackMamba bicycle

Project developed by [Rivu]
This OSAT has been designed but not yet tested - use at own risk.

You can help Appropedia by contributing to the next step in this OSAT's status.


  1. Indian and Chinese made cruisers, known as Black Mambas in East Africa, are the most common type of bicycle found throughout sub-Saharan Africa - The objective of the project is to 3D print as many parts possible of this bicycle which is very commonly used in the third world countries of Africa and make it much more economically viable for people to use over there for transportation.
  2. The below figures shows a 3D printed brakecalliper with the 2cm long bolts to connect to the brake pads and the necessary holes on the calliper to fit on the existing Black Mamba model.
Brake calliper1.JPG
Brake calliper2.JPG

Bill of Materials

  1. Brake Calliper- 8 gms of PLA, QTY 1, cost $0.18
    1. 3d printed bolt to connect the brake pads, QTY 2, cost $0.06.
    2. STLs for part can be found at [[1]]

Tools needed for fabrication of the OSAT

  1. MOST Delta RepRap.
  2. OpenScad, Cura & repetier Host software.
  3. 1.75 mm PLA filament.

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. (
  5. Consider video if appropriate
Example video summary of textbook

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


  • 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:

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]].