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Ownership

Testing/Validation DRI

Contributors

Project DRI

Jieun Lee

None

Daphne Lai (Deactivated)

Task Chart

Task

Status (type “/status”)

Notes

Defined all ASC safety regulations for cover

Status
colourGreen
titlecompleted

Catamaran Cover Testing/Validation Concepting

Research mounting hardware

Status
colourGreen
titleCompleted

Helping Renzo. Looking at click-bonds.

Research fabrics

Status
colourYellow
titleIN Progress

Finding how to place Google Home looking fabric to attach to fibreglass

Research aesthetic design elements

Status
colourGreen
titlecompleted

Research & Planning the seal and marking

Status
colourYellow
titlein Progress

Research 3D Printing

Status
colourYellow
titlein Progress

Placement and Protection for Access Points

Status
colourRed
titlenot started

Assistance Task List

...

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Sticker on Latches

  • 6 latches on the battery cover

    • since the cover can be opened up after all 6 latches are unscrewed, might be possible to have only one sticker/label on one latch (not necessary to have a sticker on all latches)

How to put sticker

  • put a vinyl sticker on top of the latch so that it covers the screw

    • must be peeled off to gain access to the battery cover

    • putting one sticker on the bottom latch of the battery cover

  • sticker can be written like this:

    • Do Not Open The Cover

Latch is 31mm wide, so thinking of 50mm sticker or even bigger if we want to put wording

These are some ideas for the sticker:

The sticker can be made by putting a huge tape over the printed paper label (kind of like a library sticker).

Or if we want a professional sticker, could just print the wording/logo on to the blank sticker page (not thinking of this option because companies don’t sell one single sticker)

  • problem: fabric

    • if we decide to attach the fabric all on the cover, the sticker might not stick well

    • maybe have to glue it with “easy peel off” glue

...

Expand

Marking

  • top of each cover must be marked with letters at least 10mm high with

    • “Caution: Chemical Hazard”

    • “High Voltage”

    • type of the battery (ex. Li-ion)

    • any other standard hazard marking specific to the type of battery as well

  • Where to put:

    • one on each cover

      • assuming that it is one on the battery cover and one on rear electronics

Embroidering

  • works almost on any fabric

    • cotton, wool, linen or silk – anything to be honest

    • would really depend on what fabric we choose to do

      • especially on tightly woven fabrics

      • Woven Fabric

      • nylon fabric

        • works for cars typically

        • not cotton (for right now)

Style:

  • Wish if it is embroidered with MS style

    • Roboto font, MS colour (yellow and blue)

      • might change depending on the fabric colour

      • ex. if the fabric colour is darker than what I expect, then the font would be white

How to?

  • could make a sticker and stick it on to the cover

  • or actually mark it to the cover itself

...

easy procedure
Expand

How to make 3D printing less 3D printed looking

  • key point is: how can we smoothen out the surface?

Method

How-to

Pros

Cons

Sources

Sanding

  • will need different seams

  • after sanding, spray filler and spray paint can make the parts to look not like 3D printed

  • able adjust how smooth we want the surface to be

  • can be accurate in a way since we are sanding the parts that we want

  • could make a mistake of sanding to much

  • if it is a large part, time consuming to sand the whole part

https://www.youtube.com/watch?time_continue=258&v=NLoB52nPuao&feature=emb_logo

https://www.youtube.com/watch?v=0vgynnYzo08

Using Acetone

  • pour small amount of acetone into the glass that has paper towel in it

  • put the model inside the glass, and put a small fan in it so that the air moves

  • displace water around so acetone doesn’t leak

  • acetone will melt the 3D model

  • take it out, and dry the 3D model

  • acetone does its job to smooth our the surface

  • takes only about an hour

  • must be printed with ABS (Acrylonitrile Butadiene Styrene)

    • which gives toxic chemical when heated

    • shrinks when it is cold

      • not suitable

  • when doing this, could be dangerous since it is flammable

  • details can be gone

https://www.youtube.com/watch?v=6xFUNFG-UKE

https://www.youtube.com/watch?v=rn4edNztaPU

Using Spray paint / Spray Fast drying polyurethane

(thinking of sticking with this option)

  • spray paint (more than usual) then spray a layer fast drying polyurethane, fan it

  • do this multiple times

  • no need to sand the 3D model

  • the details might be gone

https://www.youtube.com/watch?v=rn4edNztaPU

Shorter Layer height

  • set the layer height as a low number

  • no need to do an extra step of smoothing out the surface

  • time consuming

  • longer the time, easier for the machine to get jam and stuck

https://all3dp.com/2/3d-printer-layer-height-how-much-does-it-matter/

Heating

  • use a heat gun / hot air gun and along the surface of the 3D model

  • fast

(I guess?)

  • able to choose parts to smooth it out

  • can change the shape entirely if it is too hot

https://www.youtube.com/watch?v=SI2AqrxIfkI

https://all3dp.com/2/pla-smoothing-a-beginner-s-guide/

Using brush on coating or 3D Gloop

  • brushing on to the 3D print

  • easy procedure

3D Gloop

  • brushing on to the 3D print

  • depends on types of epoxy

  • limited resource

https://all3dp.com/2/petg-smoothing/ https://www.3dgloop.com/

  • material: PETG

Fabric

Expand

Fabric

  • was thinking of light grey cotton fabric before

  • but now thinking of nylon

    • waiting for other information from other ‘fabric team’ member

    • thinking of sticking the fabric type as well and the similar colour scheme

Ways to attach Fabric

  • 3M Marine Adhesive Sealant 4200 Fast Cure

    • a way to attach fabric on boats

  • contact cement

    • extremely strong chemical, might be to extreme

  • industrial velcro

  • any fabric glue

  • could even make a small gap on the cover and insert the corners of the fabric

    • must figure out where we want to put fabric

Fabric Glue

Padding under the fabric

  • could use a sponge foam role

  • something like foam floor tile

Keeping the fabric clean

  • could use hydrophobic and antimicrobial coating like how Google uses it for google homes

  • the cloth of the car seat can be protected by the fabric protecter – we could use this to the fabric on the cover

Foam

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Foam

  • got some information from Sheila

    • open cell vs closed cell

      • closed cell has cells that are sealed off, therefore the air is not trapped

      • her guess is that we would want to use a closed cell that is firm/extra firm (closed cell is usually firm)

  • Neoprene Foam

  • the website sells adhesive for the foam – looking in depth to this

How to attach Foam:

  • Epoxy the fibreglass and foam (method that the seats is also using

Neoprene Foam

  • a closed cell

  • firm foam

  • comes in many thickness

    • 1/8” or 1/16” can work for the top of the cover

    • 1/2” or 1/4” would work for the side of the cover

  • can cut it with knife,

Access Points

Expand

Access Points are:

  • power supply input

  • AUX battery input

  • USB ports for phone charging

Labeling and Making it professional

  • could label with words and image

  • engraving can work

ex.