Tag Archives: SLS

AnemoneStarHeart EEG / ECG visualising device at Transmission Symposium

AnemoneStarHeart handheld EEG/ECG Visualising Device

At the end of April I spent a very enjoyable day at Bournemouth University attending Transmission Symposium: Strategies for Brainwave Interpretation in the Arts. There were some very interesting presentations, exchanges of ideas and discussion on the intersection between art, cognition and technology. Links to the event, artists and scientists taking part can be found here. Thank you to Oliver Gingrich for inviting me to participate and to all the attendees, especially those who visited my emotive wearable exhibits, asked questions and/or tried a device and filled in a feedback survey.

At Transmission Symposium I debuted my AnemoneStarHeart, which is a pendant which can also be used as handheld or standalone device (smaller version being tweaked!) I have developed for broadcasting, amplifying and visualising EEG and ECG data. I have been developing this device as part of the iteration process of the EEG Visualising Pendant. It brings together technology and elements from my aforementioned EEG Visualising Pendant and Flutter ECG pendant hack.

Watching 'Canal Trip' on BBC4 with AnemoneStarHeart broadcasting / visualising EEG
AnemoneStarHeart being used as an ambient device to observe relaxation whilst watching ‘Canal Trip’ slow TV programme, BBC4, May 15.

It can be used, for example as an aid for meditation, relaxation and concentration, as well as for personal viewing or sharing physiological data in social situations with others. Data is sent to the AnemoneStarHeart via Bluetooth and it is a battery operated, standalone device. It can either be worn as a pendant, viewed in the palm of the hand or placed in a convenient area of a room – illuminating the space with coloured light. Whilst sensors are transmitting data to the device, it constantly visualises it, changing colour and brightness based on the data it receives. The smaller, wearable version hangs from a chain as a necklace or in the style of a pocket watch so it can be brought out, looked at, then put away again. As I am interested in the commercial possibilities of bespoke couture wearables and small editions of emotive devices, at some point I aspire to crowdfund this project.

AnemoneStarHeart lit up with live EEG data

As part of my PhD research, I have spent the best part of a year organising and running focus groups with potential users of emotive wearables and the EEG Visualising Pendant in London and Amsterdam. I have also conducted field trials in various social and work situations across London and Brighton, plus collected feedback from observers of the pendant. Since the beginning of 2015 I have been analysing the resulting data. This is to discover the preferences and feedback of potential wearers of emotive wearables as well as the EEG Visualising Pendant. Out of the resulting data, so far, has evolved the AnemoneStarHeart device, for which I devised a new configuration of electronic components and code. I created a new enclosure for the electronics in 3D modelling package Rhino, with help from skills learned at Francis Bitonti’s computational design workshop. It was selective laser sintered (SLS) in Nylon, in one of D2W’s EOS machines in London.

Rain & AnemoneStarHeart lit up with live EEG data

At the moment I am mostly out of general circulation as I’m collecting and analysing data which is feeding into the new emotive wearable devices I am building, whilst simultaneously endeavoring to write up / finish my PhD thesis to deadline.

Francis Bitonti’s New Skins Workshop 2015 at Digits2Widgets, London

Containers of work to be opened!

After staying in writing over Xmas and New Year, I was very excited to escape the confines of my desk to join Francis Bitonti’s New Skins Workshop on computational design for textiles, for two weeks at Digits2Widgets 3D printing bureau in Camden.

The workshops consisted of alternating tutorials on techniques for creating 3D textile meshes in Autodesk Maya and Rhino 3D software, and also writing Processing sketches for 3D graphics. The workshops were taught by Francis Bitonti and Arthur Azoulai.

Tom modelling textures on the body in Rhino 3D
Tom’s work on wrapping mesh to make a shirt around a body.

Our first week started off by creating meshes for the body in skirt and shirt like forms in Rhino 3D. We then experimented with various mesh techniques to apply varied distributions of extruded geometric shapes on to a mesh. Going on to concentrate on creating interlocking aspects of a circle, we created a repeated template that could be used to create chainmail in Rhino 3D.

Magdalena making chain mail in Rhino
Magdalena making chain mail for textiles in Rhino 3D.

In Maya we played with primitive polygon shapes and then experimented with them in the animation timeline to flip and tween between shapes, which we could then start to turn into mesh textiles by joining them together.

New Skins Workshop montage
L-R work by Victoria, Ezmeralda, Tom and Ioana.

After discussing our ideas and designs for what we would like to individually create, we spent a couple of days building our own meshes. Every .STL file was checked over and fixed in Materialise’s very useful app, Magics (which I wish I could afford for future work!), before sending to the SLS (Selective Laser Sintering) machine to be turned into real objects via the magic of a laser zapping powdered nylon.

New Skins Workshop montage
L-R work by Nada, Magdalena, me and Carmen.

Whilst the objects in the machine were being turned around, which takes several hours as the cubicle inside the machine stacks up several files / containers of work to be processed at a time, we did some examples of Processing sketches to create 3D graphics. We also learned about other software packages such as ZBrush, which is a powerful 3D sculpturing tool for manipulating 3D objects and looks like amazing fun to play with.

Two heart shapes for a locket to contain electronics
My design shaping up in Rhino 3D.

AnemoneStarsHeart pieces
The container with my heart halves inside just opened by Johnathan!

Of course the most exciting part of the two-weeks was receiving the containers from the SLS machine, with the fruits of our creativity neatly concealed inside! I created a heart-shaped shell enclosure /pendant with a repeated star mesh to create an anemone-like effect. This was created to house the electronics and act as a diffuser of data in the form of coloured light for the next iteration of my EEG Visualising Pendant. The pendant amplifies and visualises attention and meditation EEG data from the wearer via a NeuroSky EEG headset.

AnemoneStarsHeart heart lit up with live EEG data
AnemoneStarsHeart lit up with live EEG data from my brainz!

Rain & AnemoneStarsHeart heart lit up with live EEG data
AnemoneStarsHeart lit up with live EEG data via Bluetooth NeuroSky MindWave headset.

Many thanks to Francis, Arthur, Jonathan and the staff at D2W for a great two weeks of fun and excellent hospitality, plus not forgetting the lovely attendees of the workshop who were fab to hang out with.