Mechanical design files for a portable hand-powered centrifuge.
Photograph of the v0.1.0 prototype, showing the freewheel mechanism and the rotor to hold microcentrifuge tubes:
Photographs of the v0.2.1 prototype, showing the rotor guard to provide more mechanical enclosure of the rotor and taped-down electronics for measuring the rotational speed of the rotor:
The CAD sources for these designs can be viewed and copied at Onshape. Laser-cutting fabrication files, generated from the CAD sources, can be found in the design folder of this repository, organized by prototype version. Version numbering loosely follows the semantic versioning specification, such that tiny design iterations increase the patch version number while significant new design features increase the minor version number, and backwards-incompatible public releases increase the major version number. More information about each prototype version can be found in the README.md file in the subfolder for that prototype version.
Photographs of prototype designs can be found here.
* indicates equal contributions, while † denotes corresponding author.
Handyfuge-LAMP: low-cost and electricity-free centrifugation for isothermal SARS-CoV-2 detection in saliva
- Ethan Li*, Adam Larson*, Anesta Kothari, Manu Prakash†
- Correspondence: manup at stanford dot edu
- medRxiv preprint, July 2020
The Handyfuge designs, including all associated design files, are made available under CERN-OHL-W (SPDX identifier: CERN-OHL-W-2.0), the weakly-reciprocal variant of the CERN Open Hardware License. You can read the text of the license in the LICENSE file.
To report issues with the designs or get help with using these designs, please file an issue. Please be aware that it may take a while for us to fully address issues (e.g. putting together a bill of materials for mechanical parts used in the designs), because of ongoing research disruptions from the COVID-19 situation.