Bicycle Brake Caliper
Project developed by Albert Cowsky
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Abstract
Brake Calipers are an important component required to build a bicycle. In order to build a cheaper, open source, bicycle, the calipers can be printed and fitted with brake pads. Open source bicycles could reduce the cost of transportation for people that cannot afford to buy a commercial bicycle. This project can be combined with others to make a largely cheaper and printable bicycle.
Bill of Materials
(Makes Two Calipers)
Files
Commercial Parts
- 2x Commercial Brake Pads Cost = $4.98
- 8x M6x1 Torx Bolts Cost = $0.63
- 8x M6 Nuts Cost = $0.04
- 8x M6 Washers Cost = $0.05
- 1x Brake Line Guide Cost = $1.59 (For two)
Tools needed for fabrication of the OSAT
- MOST Delta RepRap or similar RepRap 3-D printer
- T30 Torx Screwdriver
Skills and Knowledge Necessary to Make the OSAT
N/A
Technical Specifications and Assembly Instructions
- 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.
- Print time = 3 hours per caliper. 6 hours total
- Assembly time = approximately 15 minutes
- Including drawings or pictures of the device at stage of assembly at minimum. (http://www.appropedia.org/Special:Upload)
- Consider video if appropriate
Example video summary of textbook |
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Common Problems and Solutions
- Brake line comes loose
- Ensure that the bolts are still properly tightened every few weeks
Cost savings
- Total Cost (two calipers) = $19.60
- Commercial Component Cost = $17.31
- Plastic Cost - 99.4g (49.7 each) at $23/kg = $2.29
- |Commercial Calipers
- $16-$40 each
- $32-$40 for two
- $12.4 - $20.4 savings for two calipers
- 38.75% - 51% savings
References
N/A