Abstract[edit | edit source]
The purpose of this project is to create a protective barrier for indoor lab/lecture classes at Six Rivers Charter School that will protect students and teachers from excessive exposure to COVID-19 when in-person instruction resumes. Team REMS was formed through Engineering 215 - Introduction to Design, an engineering course taught by Lonny Grafman at Humboldt State University.
Background[edit | edit source]
Six Rivers Charter School is a high school in Arcata, California. Together, with Lonny Grafman, they collaborated to inspire the Fall 2020 ENGR 215 class to develop solutions to the problems facing them in their future return to in-person instruction. The Fall 2020 ENGR 215 class designed four solutions to the various problems that Six Rivers Charter School faces. Team REMS chose to design an indoor lab barrier that would allow students to participate in indoor labs/lectures while minimizing exposure to COVID-19.
Problem statement and criteria[edit | edit source]
Team REMS' future design set out to answer the question, "How do we allow for students at Six Rivers Charter School to participate in in person classes while minimizing risk of exposure to COVID-19 and abiding by state and local COVID-19 safety guidelines?". The criteria that would guide the design process were developed by Team REMS and the client representative of Six Rivers Charter School and are listed below in a table that weighs their significance to the problem statement on a scale from 0-10 where 0 is the least important and 10 is the most important. Below, each criterium is constrained as well.
|COVID-19 Safety (CDC guidelines)||abides by state and local COVID-19 safety guidelines||10|
|Instructor Interaction||aids in student-instructor interaction||9|
|Replicability||is replicable and can be built by one with little to no expertise||8|
|Cost||is under the budget of $200||8|
|Aesthetics||is simple and elegant||7|
|Student Collaboration||aids in student collaboration||6|
Description of final project[edit | edit source]
The Delphi Matrix, which produces a score for each potential design based on how it meets the stated criteria, proposed that the indoor lab protective barrier design Team REMS would develop would prove to be the optimal solution to the problem statement. After testing the prototypes and letting the stated criteria guide the design process further, the final design was created. 1.5"x1.5" Aluminum Angle and 0.75"x0.75" Aluminum Angle were used to create the frame of the barrier. Transparent vinyl sheets were used to create the front and side panels. To secure the vinyl to the frame, we used a combination of nuts, bolts, washers and Gorilla Mounting Tape. The dimensions of the barrier are 36"x36"x27". It is a 3-sided barrier with extended side panels for extra user protection.
Prototyping[edit | edit source]
Costs[edit | edit source]
|QTY||Material||Source||Cost ($)||Total ($)|
|5||1.5"x1.5" Aluminum Angle||Amazon||13.10||65.5|
|5||0.75"x0.75" Aluminum Angle||Amazon||9.70||48.5|
|1||double sided tape||AceHardware||8||8|
|8 of each||nuts, bolts, washers||Ace Hardware||13.44||13.44|
|1 Roll||vinyl||Marine vinyl||45||45|
Testing Results[edit | edit source]
Team REMS has conducted simple tests on the indoor lab barrier to see how well it works. The "bump" test was used to see how sturdy the barrier was on a table. A team member walked past the barrier and bumped it with their body. The barrier was very sturdy and did not need any stabilizers. The "mobility" test was used to see if one person is able to mount the barrier on a table. The test was successful and one person was able to mount the barrier alone. The vinyl panels allow for great, clear visibility. The frame does not obstruct the view of the user. Team REMS has not yet implemented the barrier at Six Rivers Charter School so we have yet to see how real high school students interact with the barrier.
How to Build[edit | edit source]
Maintenance[edit | edit source]
Maintenance of the indoor barrier is fairly simple and includes wiping down the vinyl and frame with disinfectant after each use, replacing Gorilla Mounting Tape periodically, and cleaning the vinyl to preserve its transparency.
|Wipe down barrier||disinfectant and paper towels||1 minute (daily)||.50|
|Replace glue tape||Gorilla Mounting Tape||5 minutes (monthly)||1.00|
|Clean vinyl||Windex or similar cleaner and paper towels||2 minute (weekly)||1.00|
Troubleshooting[edit | edit source]
|wobbly frame||check for loose nuts|
|detached vinyl||replace glue tape|
Suggestions for future changes[edit | edit source]
- Replace vinyl with less expensive alternative
- add accessories to aid students in their learning
References[edit | edit source]
See Help:Footnotes for more.