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{{Infobox device | |||
|title=Bike Chain Tensioner | |||
|image=ChainTensioner.jpg | |||
|description=This chain tensioner can be used to address issues with chain hopping, chain slap, and rattles. | |||
|keywords=3D printing, bicycle, bike chain tensioner | |||
|intended-use=transportation, hobbyism | |||
|status=Prototype | |||
|made=Yes | |||
|replicated=No | |||
|countries-of-design=United States | |||
|affiliation=Category:MTU, Category:MOST | |||
|materials=Plastic | |||
|estimated-cost-amount=6.50 | |||
|estimated-cost-currency=USD | |||
|sdg=SDG08 Decent work and economic growth | |||
|contact-affiliation=MOST | |||
|authors=User:Spoonless | |||
|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 | |||
}} | |||
{{777}} | {{777}} | ||
== | |||
==Bike Chain Tensioner== | |||
Project developed by [[User:Spoonless]] | |||
{{Status|prototype}} | |||
{{ | |||
==Abstract== | ==Abstract== | ||
This chain tensioner can be used to address issues with chain hopping, chain slap, rattles. | This chain tensioner can be used to address issues with chain hopping, chain slap, and rattles. It can be printed and assembled for less than $6, and offers equivalent perfomance to comercial products sold for $30. | ||
[[File:ChainTensioner.jpg|200px]] | [[File:ChainTensioner.jpg|200px]] | ||
== Bill of Materials== | == Bill of Materials== | ||
# [https://github.com/SpoonlessCorey/OSAT_BikeChainTensioner Tensioner.scad] | |||
# (2) ZipTies | # (2) ZipTies | ||
# (1) 8-32 Thread, 1-1/4" Length Machine Screw (eg. [http://www.mcmaster.com/#91792a201/=uvhjkl McMasterCarr:91792A201]) | # (1) 8-32 Thread, 1-1/4" Length Machine Screw (eg. [http://www.mcmaster.com/#91792a201/=uvhjkl McMasterCarr:91792A201]) | ||
# (1) 8-32 Thread Locknut (eg. [http://www.mcmaster.com/#91831a009/=uvhlvw McMasterCarr:91831a009]) | # (1) 8-32 Thread Locknut (eg. [http://www.mcmaster.com/#91831a009/=uvhlvw McMasterCarr:91831a009]) | ||
== Tools needed for fabrication of the OSAT== | == Tools needed for fabrication of the OSAT== | ||
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== Skills and Knowledge Necessary to Make the OSAT == | == Skills and Knowledge Necessary to Make the OSAT == | ||
* | * Ability to use a 3d printer. | ||
* Ability to use a wrench and screwdriver. | |||
== Technical Specifications and Assembly Instructions== | == Technical Specifications and Assembly Instructions== | ||
All parts are symetric such that component orientation is not an issue. | |||
Assembly: | |||
# | # Ziptie the cage to the Bicycle frame just above chain. | ||
# | # Hold the chain up so it is captured in the cage. | ||
# Bolt the pully in place | |||
# gently crank the pedals by hand and shift throug all gears to ensure nothing is binding | |||
=== Common Problems and Solutions=== | === Common Problems and Solutions=== | ||
* | * If the fit to they bicycle is loose or overly tight the OpenScad variable "pipeDia" can be set to match your bike frame's tubing diameter. | ||
== Cost savings== | == Cost savings== | ||
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** Equivalent Chain Tesnsioner: [http://www.amazon.com/Bionicon-7640162290111-c-guide-eco/dp/B00HZRCZBS Bionicon C.GUIDE] approx. $30 | ** Equivalent Chain Tesnsioner: [http://www.amazon.com/Bionicon-7640162290111-c-guide-eco/dp/B00HZRCZBS Bionicon C.GUIDE] approx. $30 | ||
** 30 - (5.60 + 0.90) = $23.50 | ** 30 - (5.60 + 0.90) = $23.50 | ||
[[Category:How tos]] | [[Category:How tos]] | ||
[[Category:Electricity]] | [[Category:Electricity]] | ||
[[Category:Electric lighting]] | [[Category:Electric lighting]] | ||
[[category:OSAT 3D-Printable Designs]] | |||
Revision as of 00:07, 23 October 2020
Bike Chain Tensioner
Project developed by User:Spoonless Template:Status
Abstract
This chain tensioner can be used to address issues with chain hopping, chain slap, and rattles. It can be printed and assembled for less than $6, and offers equivalent perfomance to comercial products sold for $30.
Bill of Materials
- Tensioner.scad
- (2) ZipTies
- (1) 8-32 Thread, 1-1/4" Length Machine Screw (eg. McMasterCarr:91792A201)
- (1) 8-32 Thread Locknut (eg. McMasterCarr:91831a009)
Tools needed for fabrication of the OSAT
- MOST Delta RepRap or similar RepRap 3-D printer
- Screwdriver
- Adjustable Wrench or Pliers
Skills and Knowledge Necessary to Make the OSAT
- Ability to use a 3d printer.
- Ability to use a wrench and screwdriver.
Technical Specifications and Assembly Instructions
All parts are symetric such that component orientation is not an issue.
Assembly:
- Ziptie the cage to the Bicycle frame just above chain.
- Hold the chain up so it is captured in the cage.
- Bolt the pully in place
- gently crank the pedals by hand and shift throug all gears to ensure nothing is binding
Common Problems and Solutions
- If the fit to they bicycle is loose or overly tight the OpenScad variable "pipeDia" can be set to match your bike frame's tubing diameter.
Cost savings
- Approximatly $23.50 (78.3%)
- 30g of PLA at approx. $30/kg = $0.90
- Machine Screw, Locknut, and bag of zip ties approx $5.60 at local hardware store
- Equivalent Chain Tesnsioner: Bionicon C.GUIDE approx. $30
- 30 - (5.60 + 0.90) = $23.50