We continue to develop resources related to the COVID-19 pandemic. See COVID-19 initiatives on Appropedia for more information.


From Appropedia
Jump to navigation Jump to search
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.

OSAT Pulley Assembly - EE 4777[edit]

Project developed by Lucas Wilder (talk) 17:20, 30 November 2014 (PST)
This OSAT has been designed but not yet tested - use at own risk.
This OSAT has been prototyped.

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


  • This OSAT is a heavy-duty rope pulley that can be used to raise water from a well [1]. This pulley can be customized to any desired size, and can be paired with multiples of itself to further increase mechanical advantage.

Bill of Materials[edit]

Tools needed for fabrication of the OSAT[edit]

Skills and Knowledge Necessary to Make the OSAT[edit]

  • Ability to operate a 3D printer and Thingiverse Customizer.

Technical Specifications and Assembly Instructions[edit]

  • Assembly instructions with images can be found here: http://imgur.com/a/5Ilmk
  • Print time estimate: ~4 hours, depending on the parameters entered.
  • Assembly time estimate: 2 minutes

Common Problems and Solutions[edit]

  • Did not experience any issues

Cost savings[edit]

  • Fully customizable size: Priceless
  • OSAT Total Cost: Printed parts ($1.86) + hardware($0.74) = $2.60
  • Closest commercial equivalent: http://goo.gl/ClkS1T
  • $8.90 savings and 77.4% savings


  1. web page: Appropedia Pulley Main Page, Available: http://www.appropedia.org/Pulley