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|Preliminary Student Design Warning|
|Note that this page is a preliminary student design and has not been vetted.|
|Care should be taken to read critically and weigh the evidence.|
|Remember non-tested and vetted designs should not be relied on, especially in matters of health and safety. Recommendations to improve this project follow:|
- a solid design but has not been tested on full scale on bicycle
- needs longevity testing - probably best in high performance plastic - e.g. nylon
Project developed by Monica Fraser
- This design can be printed to produce a bicycle chain to be used with a bike. This design can fit under multiple OSAT goals that involve cheaper transportation for creating a mostly 3D printed bicycle. There is one other design for a 3D printed chain, however the design is not listed for actual use due to its lack of strength. This design has more strength to it, without taking away the ease of assembly that the other option has.
Bill of Materials
Tools needed for fabrication of the OSAT
- MOST Delta RepRap or similar RepRap 3-D printer
Skills and Knowledge Necessary to Make the OSAT
Technical Specifications and Assembly Instructions
- Print settings for bike chain used (feel free to experiment with other options):
- Layer Height: 0.1 mm
- Shell Thickness: 1mm
- Bottom-Top thickness: 0.5mm
- Fill Desnity 30%
- Print Speed: 30mm/s
- Print Temperature (PLA): 190 C
- Flow: 100%
- Print time estimate: 26 minutes for one link
- Assembly Time for entire chain: 10-20 minutes
Common Problems and Solutions
- Not being able to snap a link into place onto the existing chain: Place the link that is being added in parallel to the existing link. This prevents the existing parts from getting in the way of adding new links on.
- If your solution is not a low cost one then it is not really appropriate.
- One link = Two main brackets, two connector brackets, two spacer rings
- Approximate cost for one bike chain link: $0.05
- Approximate cost for a 50 link chain: $2.52
- Cost of a [commercial bike chain] $8.95
- Savings: $6.43 71.8% savings