Build Rev 2
System enclosure, cooling system and pump intake filterChanges to the enclosure modifications in Rev2 include the following:
- No cutouts in the face of the enclosure for the prototype digital relay timers.
- Cutouts for new control panel are in the lid of the box. Panel is flush mounted to the top surface of the box. Lid liner requires cutouts as well.
- Power to the solenoids is 24V . Solenoid plugs are mounted below left enclosure clamp; Photos are provided.
- 110VAC supply to the power module is made through a flush mount plug. An extension cord is now provided. In the prototype, this same plug was used as a 12V DC output to the solenoid valves. We are no longer doing that from Rev2 forward.
- Toggle bolts and power supply rail mount system used in the prototype no longer needed. New power module is a drop-in unit with aluminum back plane. Four bolts fasten it to the floor of the enclosure. Sandwich back plane between jam nuts to elevate it off of the sound damping mat. Use aluminum back plane specified in the new parts list as a drill template. Shock mount rubber backing recommended beneath back plane.
Milwaukee Packout toolbox
Mark screw locations
Cut air intakes
Cut air intakes
Clean ragged edges
Drill holes for fasteners
Bolt screen to the bezel
Cool air intakes (complete)
Cool air intakes (complete)
Adding sound insulation
Cooling fan hole and fan
Filter for pump intake
Cutting new HMI access
HMI access in lid
HMI body held by lid; HMI secured with mending plate that attaches with #10 sharp points.
HMI flush mounted in enclosure lid
Installing new HMI in enclosure
Lid liner out another view HMI box cut
Lid liner out for cutting HMI access
Liner out access cut for new HMI
New HMI in box
Top box liner out for new Human Machine Interface (HMI) mods
KO hole punch for enclosure details
Legal Disclaimer
The content on this website is being released in this manner to maximize the potential public benefit during this urgent need for measures to respond to the COVID-19 crisis, including promoting potential ventilator manufacturing methods.
The content has not been reviewed or approved by the U.S. Food and Drug Administration (FDA). Interested readers are encouraged to contact the FDA and review available FDA materials, including their guidance on ventilators as well as the Department of Health and Human Services (DHHS) declaration of liability immunity for medical countermeasures against COVID-19.
PLEASE NOTE: The content has not been peer reviewed. The Authors make no representations or warranties of any kind (express or implied) relating to accuracy, safety, usefulness, usability, marketability, performance, or otherwise of the content released here. The Authors disclaim all express and implied warranties of merchantability and fitness of the content for a particular purpose, and disclaims all express and implied warranties regarding non-infringement of any patent, copyright, trademark, or other rights of third parties in the content or use of the content, or in the making, using, or selling products or services by any person or entity.
People or entities attempting to use the content in any way, including creating products or offering services, assume all risk and responsibility related to those uses, including all legal and regulatory compliance, safety, efficacy, performance, design, marketability, title, and quality. The Authors assume no liability related to the actions of third parties and in respect of any infringement of any patent, copyright, or other right of third parties.
The content has not been used in testing with humans at this time.
The Authors’ names and logos are trademarks or other exclusive property of the Authors. Readers of the content shall not use the name or logo of any Author in any way for publicity, advertising, or other commercial purposes, including linked to the reader’s products or services. Readers of the content shall not make statements or representations that, in Author’s sole judgment, deliberately or inadvertently claim, suggest, or give the appearance or impression of a relationship with or endorsement by that Author.
The Authors are proud of their affiliation with the University of Colorado as alumni and, in the case of Dr. Thomas Greany, as a professor at the Anschutz Medical Campus. The Authors express their appreciation to the University of Colorado for its support of this project.