Ashwin Sridhar
Published © CC BY-NC

FEA-Optimised Novel Touch Less All-in-One Tool for COVID-19

All-in-once no touch utility tool which works with touchscreens, buttons, handles and even knobs!

IntermediateFull instructions provided3 hours781

Things used in this project

Hardware components

Filament
For touchscreens seen in many grocery shops you can use normal filament (PLA used for this project) For capacitive touch screens (most phones) conductive filament must be used
×1

Software apps and online services

PrusaSlicer
Fusion 360
Autodesk Fusion 360
ANSYS Mechanical (USED IN FEA)
(OPTIONAL)Sustainable Minds LCA

Hand tools and fabrication machines

3D Printer (generic)
3D Printer (generic)

Story

Read more

Custom parts and enclosures

Part1: "Mass Reduction Infill"

This is the main part of the body which will not undergo considerable amounts of stress, using with the second part

Part 2: "File.stl"

This file can be used at higher infill levels to reduce the overall mass of the design. This will be the regions undergoing a lot of force and will be used as a load modifier

Error uploading file to Sketchfab.

Project File without Keyring Hole

Import into PrusaSlicer

Project File with Keyring Hole

Import into Slicing Software

Unedited STL File

Original STL File which can be printed to your liking

Schematics

Assembly of the two mass reduced parts

This is how your final mass reduced print will look after slicing, note the varying levels of infill in regions of higher stress

Technical Drawing

Shows multiple views of the design along with dimensions

Code

SBOM of Initial Design

Plain text
Import into the Sustainable Minds LCA software (tsv file)
Project:	Novel No-Touch Utility Tool for COVID-19
Concept:	Initial Design
Methodology:	SM 2013
Date:	Jun 04, 2020
Created by:	Ashwin Sridhar
Total Amount of Service delivered during the lifetime of the product:	0.8 x 1 year of use

Item	Stage	Row type	Part ID	Name	Description	Qty	Material/process	Amount	Units	Measurement source	Total (mpts)	Acidification (mpts)	Ecotoxicity (mpts)	Eutrophication (mpts)	Global warming (mpts)	Ozone depletion (mpts)	Fossil fuel depletion (mpts)	Carcinogenics (mpts)	Non carcinogenics (mpts)	Respiratory effects (mpts)	Smog (mpts)	CO2 Equivalent (kgs)
0		concept		Initial Design							12.2	0.330	1.68	2.27	2.39	0.00251	1.51	3.78	-0.220	0.235	0.234	166
1	Manufacturing	Life cycle stage
1.1	Manufacturing	Part		Body		1		79	g
1.1.1	Manufacturing	Material processing		Process			Extrusion, film, plastics	79	g	Estimate	0.00338	0.000157	0.000218	3.65E-5	0.000991	5.67E-7	0.000375	0.00113	0.000243	0.000118	0.000103	0.0688
1.1.2	Manufacturing	Material		Body			Polylactide, granulate, PLA	79	g	Estimate	12.1	0.327	1.68	2.27	2.37	0.00247	1.49	3.74	-0.226	0.233	0.226	165
2	Use	Life cycle stage
3	End of life	Life cycle stage
3.1.1	End of life	End of life		Landfill, plastics, mixture		1	Polylactide, granulate, PLA	79	g		0.000283	4.53E-6	7.92E-6	4.59E-5	0.000131	6.14E-8	2.77E-5	4.49E-5	6.88E-6	4.99E-6	9.01E-6	0.00909
4	Transportation	Life cycle stage
4.1	Transportation	Transportation - Assembled product
4.2	Transportation	Transportation - Subassemblies and parts
4.2.1.1.1	Transportation	Transportation - Part		Body		1	Truck, >32t	150	miles	Estimate	0.0995	0.00333	0.00346	0.00249	0.0194	4.11E-5	0.0185	0.0367	0.00529	0.00243	0.00785	1.35

Data values contained in this spreadsheet are based on intermediate calculations from within the Sustainable Minds Software. Values are for informative purposes only. Modifications to contained data values may invalidate the results.

Final Design SBOM

Plain text
Import into LCA software sustainble minds
Project:	Novel No-Touch Utility Tool for COVID-19
Concept:	Final Design
Methodology:	SM 2013
Date:	Jun 04, 2020
Created by:	Ashwin Sridhar
Total Amount of Service delivered during the lifetime of the product:	0.8 x 1 year of use

Item	Stage	Row type	Part ID	Name	Description	Qty	Material/process	Amount	Units	Measurement source	Total (mpts)	Acidification (mpts)	Ecotoxicity (mpts)	Eutrophication (mpts)	Global warming (mpts)	Ozone depletion (mpts)	Fossil fuel depletion (mpts)	Carcinogenics (mpts)	Non carcinogenics (mpts)	Respiratory effects (mpts)	Smog (mpts)	CO2 Equivalent (kgs)
0		concept		Final Design							0.0174	0.000506	0.00224	0.00290	0.00365	3.51E-6	0.00212	0.00542	-0.000135	0.000365	0.000358	0.253
1	Manufacturing	Life cycle stage
1.1	Manufacturing	Part		Body		1		45	g
1.1.1	Manufacturing	Material processing		Process			Extrusion, film, plastics	45	g	Estimate	0.00192	8.93E-5	0.000124	2.08E-5	0.000565	3.23E-7	0.000214	0.000646	0.000138	6.71E-5	5.87E-5	0.0392
1.1.2	Manufacturing	Material		Body			Polylactide, granulate, PLA	45	g	Estimate	0.0152	0.000410	0.00211	0.00285	0.00298	3.1E-6	0.00187	0.00470	-0.000284	0.000292	0.000284	0.207
2	Use	Life cycle stage
3	End of life	Life cycle stage
3.1.1	End of life	End of life		Landfill, plastics, mixture		1	Polylactide, granulate, PLA	45	g		0.000161	2.58E-6	4.51E-6	2.61E-5	7.46E-5	3.5E-8	1.58E-5	2.56E-5	3.92E-6	2.84E-6	5.13E-6	0.00518
4	Transportation	Life cycle stage
4.1	Transportation	Transportation - Assembled product
4.2	Transportation	Transportation - Subassemblies and parts
4.2.1.1.1	Transportation	Transportation - Part		Body		1	Truck, >32t	150	miles	Estimate	0.000125	4.18E-6	4.34E-6	3.12E-6	2.44E-5	5.16E-8	2.32E-5	4.61E-5	6.65E-6	3.05E-6	9.86E-6	0.00169

Data values contained in this spreadsheet are based on intermediate calculations from within the Sustainable Minds Software. Values are for informative purposes only. Modifications to contained data values may invalidate the results.

Credits

Ashwin Sridhar

Ashwin Sridhar

4 projects • 5 followers
British high school student and inventor. Passionate about STEM in and out of classrooms. Experienced with mechatronics and programming.

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