Posts Tagged ‘art’
Automagic start up?
So, I’ve been in Stavanger setting up the EMF for the Article 08 since Monday. It has been a constant, 20 hour/ day process of trial and error. Breifly ……
Luckily, before I arrived some hunky firemen filled the fountain bowl with water – necessary to stop it being carried away or tipped over.
Unluckily, the bowl was mucky when it arrived, and the water consequently very murky.
(Photo: Geir Tore Aamadal)
Luckily, I managed to clean the bowl today by taking out just enough water to keep the pumps running, using a cloth to remove the gunge, and filling the bowl up again with 56 buckets of water.
Luckily, the fountain appeared to survive its journey, with pumps and lights all working fine.
Unluckily, and as in Porsgrunn, the dmx relay box has been cutting out. The fountain runs for anything up to 9 hrs and then the relay box ceases to function.
(Photo: Geir Tore Aamadal)
Luckily, the weather was okay for the first 2 days, and I had two very helpful assistants, Geir Tore and Evy, who even washed my dirty clothes for me.
Unluckily, the weather changed and it has been raining and windy – making it difficult to work outside.
(Photo: Geir Tore Aamadal, Evy on the left)
Unluckily, the computer is damaged and does not like starting up at all.
Luckily I buy a new one on down payment, which makes problem solving a lot easier.
Unluckily it contributes to breaking the budget.
Luckily Pepe is on hand to send me my Griffin usb sound interface (from Oslo) in an attempt to get a better sound input from the EM sniffer.
Unluckily the fountain does not respond favourably to it, so I go back to minijack/line sound input.
Luckily I manage to make contact with John of Milford Electronics (who sold me the relay box) who suggests various issues connected to my problem.
Luckily the problem seems to be resolved with a new power adapter.
Luckily, now everything seems to be working, Trond Lossius is on hand via Skype from Bergen to help me by making an “automagic” (is this a spelling mistake, or his humour?) start-up max/msp patch out of the one that is currently functioning.
Luckily, Geir Tore offers moral support, reading me Trond’s instructions, because I’m too tired to rely on my own brain operating sequentially.
Unluckily, once installed on the fountain’s mac, everything works except that the fountain’s water jet patterns do not change.
Luckily, Trond helps out, taking me through the various parts of the patch step by step to resolve the problem. Some of the max externals have not been copied over to the new mac, and I’m missing some column data that is vital for changing the aqua-ography.
I am waiting for daylight to test the revised patch on the fountain. This is partly because of the wind and rain, and partly because I really need to see if the fountain keeps running (particularly the valves) for a longer period of time if I am going to leave it for 10 days on Monday.
Tomorrow it is Friday, which leaves one day left to get the EMF stable for the opening of the exhibition.
EMF public test run
Between 12pm and 9am on 8-9th November the Electromagnetic Fountain went through a public test run before leaving for Stavanger to take part in Article 08, 15-30 November. It stood on the town hall square (Rådhusplassen) during “Kulturnatt” in Porsgrunn, Norway, and, though the weather was horrid for much of the time (rain, wind, hail) the fountain appealed to the people who managed to make it to the town square when the rain occasionally stopped:
The fountain performed beautifully for the first 7 hours. After that the 5 pentagon water jets stopped working. The reason was discovered the next day – a bad connection on the dmx relay box.
The exercise was very useful.
Setting the fountain up the day before the event took almost twelve hours! It was quite an ordeal:
The weather conditions:
Rain, wind, hail and very cold – made it hard to protect the electronics from getting wet during set up.
Solution: For initial set up, use a car boot to house a computer screen, keyboard and mouse. Use Remote Desktop after that (haven’t had time to set it up and try it out yet – so that’s something to prepare for in Stavanger.
Water leaks:
The leakage in the pumps and valves that should have been fixed previously were only attended to during the set up time.
The Antenna Box
The antenna box/cable was not finished until 17.30, at which point it started to get dark. I could not test the fountain properly until this had been done.
Fuse goes on start up:
The fuse that protects the electronics went several times when the fountain was turned on, and the mac mini did not respond favorably to this. It seemed like a critical situation, but all went well after a couple of cold start ups.
Solution: plug in the electricity with the fuses off, and then trun them on. This seems to work fine.
Though only the central water jet was working, I left the fountain on to run over night, primarily because I wanted to test the software for a longer period, which I haven’t had the opportunity to do before.
Sunday morning:
A small period of almost rainless conditions allowed Atle and myself to check out the problems with the fountain on Sunday morning. The software was still running fine, but ……
Signal failure to 5 valves:
The problem with the signal failure to the five electronic valves, though identified, is not yet really solved. I have no idea what caused the bad connection. It started to work when I took the dmx relay box out of the fountain base chamber to take a look at it.
Air accumulation in the water system:
There seems to be an accumulation of air in the water system after the fountain has been running a while. This affects mainly the pump that serves the 5 pentagon jets. The result, very low jets and a noisy pump that affects the VLF sniffer output.
Solution: make sure that the air is removed from the water system each day.
We just had time to check these things out and empty the fountain basin before the lorry arrived at 12.00 to transport it to Stavanger.
I’ll have four days to set it up in Stavanger in preparation for the Article 08 exhibition, and I must admit that the task seems a bit daunting. I had hoped to attain a greater degree of stability by this time. The main problem has been the co-ordination of the construction and electrical work in relation to the demands of programming and testing the fountain, and has pushed my nerves (and probably everyone else’s) to the limits. However, I really enjoyed watching how people took to the fountain during the rainless periods, and, though I say it myself, I think it looks stunning at night!
The only thing to do is to remain positive, and hope for some undestanding in relation to the problems that need to be solved. Though a bit wet and windy at times weather does not look too hopeless from tommorrow evening until next Friday, with temperatures between 4-9 degrees. Wednesday may also see some sunshine:-)
EMF article in the Weekly Technical Magazine
Here’s a link to an article about the Electromagnetic Fountain by Stein Jarle Olsen, published in the Norwegian Weekly Technical Magazine, 02.11.2008.
The article is called “Sprutende ingeniørkunst” in Norwegian, and I’m finding it hard to translate “sprutende” to English. Shooting, splashing? The best word I can hit on is ejaculating. Discussing the problem in the kitchen of Canadian artist (and my hostess with the mostess) Vicki Moulder, we come up with two alternative English titles:
1. Ejaculatory Engineering Art
2. The Art of Engineered Ejaculation
Other alternative suggestions welcome :-)
(photo by Stein Jarle Olsen)
Success! 6 jets working!
On the last day of the second session and main EM Fountain work time in Skien, the 6 jets finally came into action. It took a long time to find out how to wire the dmx relay box to the relay box that serves the electronic valves with electricity ……
What became clear when we saw the fountain in action was that it was most lively without a cell phone installed by the antnenna. The antnenna picked up ambient disturbances in the electromagnetic environment and the fountain responded with a rich variety of chorepgraphic patterns, jet heights and light blinky-blinks. Then, when you come close-ish to the antenna with a cell phone, the feedback is instantaneously perceptible, with a uniform choreography and all jets on full height. It is beautiful and sense making. But it is hard to say if the fountain will react likewise when it is moved to a new location …..
I now have a break for a week (going to show the Emotion Organ at the ACM Annual conference and exhibition at Science World/Vancouver). After that I have another 3 full days in Skien where all the remaining things need to be done to get the EMF ready for meeting the public – not in the least is to see if it will run on its own steam for 24 hours and more. The first preview will be in Porgrunn town square on 8th November, where it will stand for 24 hours before travelling to Article 08, Stavanger.
Houston, we have one less problem
It was a very busy day today.
It started with nothing much going on, so I fiddled around, adjusting this and that. Then Frank Ralle came and fixed the pump tubes. He also reminded me of something that he previously told me that I should do – get rid of the air in the pumps each time the water is drained out of the fountain bowl. Silly me. By 14.40 the central jet sprang out of the bowl reaching a height that must exceed 4m. Fab!
At 15.00 most of the NLI Engineering AS team turned up, as well as a journalist from the Weekly Technical Magazine (Teknisk Uke Blad) to interview us all and take photos. It was a pity that the relay box and the last 2 rgb lights hadn’t arrived, but at least one jet was behaving very nicely. The seance lasted about 2 hours, so I hope he’ll write some good stuff.
During the evening the fountain took part in an open day at Klosterøya – a good opportunity to get some feedback, even though the fountain isn’t finished yet. Several of the people who work at Bautas turned up which made me very happy. Below is the only half-decent photo I have of the fountain in operation. It doesn’t really give a good impression of the water jet, and shows the need for 2 more lights to capture the height of the jet at night.
Lastly, here’s a screenshot of the max patch for the EMF that was made with the help of Trond Lossius at BEK last week. (Some of the sub-patches can be found on my Flickr site. Click the image below to get there).
Houston, we have a problem
L-R: Atle (ROM3), Svein Kjetil, Øystein and Geir (NLI Engineering)
Had a meeting today with the project group from NLI Engineering AS to go over the water pressure and leakage troubles, as well as the electronic valve issue. Contrary to the idea of getting a 3rd pump to help/feed the two existing ones was the suggestion to address the “visible” faults – the angles and bends in the tubes running from the nozzles to the pumps and valves. The electronic valve issue should be solved with a relay box that supplies the valves with electricity, and is triggered by signals from the existing switch box. If this works, it won’t be too costly, and could be completed by Wednesday. Perhaps I will see the water jets working by the time I have to leave on Sunday.
The software still keeps running!
I am feeling positive :-)
(PS: Just got a call from my flat in Oslo – the water pipes in the bathroom are leaking – and water it running down into the flat below. This cannot be happening!)
EMF update – ROOM 313
Room 313
I am sitting in room 313 at Thon Høyes Hotel in Skien, Norway, waiting for all the other guests to go out and have fun on Friday night so the wireless net connection goes faster and I can update my blog. I’m a bit lonely, but it is a very friendly hotel down by the water. My room is moderately sized and quite cozy really, with just enough space for me and all my clothes and equipment that I have been carrying with me from place to place for the past 9 weeks. There’s a telly, a desk, a single bed and a couple of chairs and a spacious bathroom. I have my espresso machine with me so I can make good coffee when I want to.
Breakfast and dinner
Each morning I eat breakfast in the restaurant, and make a packed lunch of fruit, sandwiches and yogurt before setting off to the old warehouse down the road at Klosterøya provided kindly by Bautas Equipment Rentals to work on the EM fountain. The warehouse is huge, cold and inhabited by several pigeons, but I like it, and the staff at Bautas are extremely friendly and supportive.
Each evening I eat the dinner of the day accompanied by one glass of wine (house red or white, according to the dish on offer) before coming up to my room to plan the next day, and then falling to sleep in a heap. Each day brings with it a new and unexpected hurdle to overcome.
Programming (max/msp) with Trond at BEK
Having been here almost a week to work on the fountain construction at Frank Ralles workshop, I took the train to Bergen to work on the programming of the fountain with Trond Lossius at BEK (Bergen Centre for Electronic Art), who, having invited me to give two presentations of my project earlier, offered to work with me for three days on the matter. One of the main issues was to devise a way to get meaningful data out of location-sensitive, unpredictable sound data that flows from the detectors designed by Martin – and then find a meaningful way to map the results of the data onto the fountain’s mechanisms. We encountered a series of technical malfunctions in relation to the detectors, the origins of which are too complicated to go into here, with many unknown variables/causes. Anyway, I will cut through them and move on to what we ended up doing, but before doing so I would like to mention one thing. Working with the detectors and the analysis of the signals revealed, amongst other things, how bodies moving through electromagnetic fields alter the fields themselves. This is a fascinating (re)discovery that could be picked up on later. Water jets could, for example, follow people around as they moved through the fields picked up by the detectors. There are a lot of potentials to address in the future.
We worked on the most reliable detector, and the one that eventually gave the strongest signals – the VLF sniffer with 2m coil antenna. This one picks up and delivers strong signals of EM fields in its very close proximity and gives delicious sounds. We put a mobile phone directly over the antenna nose to create a continuous input signal. Plugging the audio output from the sniffer into the audio interface (amplifying it) and the mac mini, we analyzed the brightness, loudness and noisiness of the sound signal in various ways, visualizing it and looking/listening for significant changes in the signal. As a new change occurs, the fountain valves adapt a new pattern/sequence. Each sequence resembles a “classic” fountain choreography, but because the rhythm is dependent on the quirky rhythm of the network signals it is all a bit off beat. This is of course all theoretical right now. The fountain is not here physically, and we can only watch what is happening on the screen, but it looks and feels very promising.
Each jet pattern circulates either clockwise or anticlockwise. When the mobile phone receives a call, or a signal from elsewhere produces a dramatic change, then all valve jets of the fountain are programmed to “flash” open and closed. Applying an autoscaler to the data became very interesting in relation to this behavior. As it takes time for max/msp to re-calibrate the signal from memory/buffer it is as if the fountain must recover from a trauma, or an exertion, before moving back to its pulsating mode.The mobile phone also acts as sensor/antenna for other data flows – though it is difficult to say exactly what they are and where they come from. So, in the light of the time scale and demands of getting the EM fountain ready for public exposure, this solution (a mob mounted directly on the antenna nose) has become the basis for the second EMF prototype.
This solution focuses mainly on direct human interaction, but has some environmental influences too. When leaving BEK I had an ambition to utilize at least one other of Martin’s sniffers to get more of the environmental influence in the picture, but after today’s discoveries I am not so confident about this ….
Yesterday – back in Skien
Returning from Bergen on the night train on Wednesday evening, I dumped my stuff at the hotel, was picked up by Atle Barcley (ROM3/ producer) and driven to the warehouse to see the work that had been done during my absence. It looked great but the chamber that holds the electronic gear had been sealed with a bolted panel, rather than a locked door. Having noted this we rushed around finding a table, chair, as well as a drill and bit/chimney with which to open the chamber.
I hooked up my mac to the fountain to assign DMX channels, etc, to the electrical components – valves, lights, pumps – with some success (pumps and central light were connected, great! Only the solenoid valves and 5 jet lights to go. By that time I was cold and tired, but optimistic enough to phone Marius the Electrician to tell him of the success.
Today ……
Today I have sworn like the devil, and cursed every living creature on earth – and then, after a while, repented.
Next morning (today) I meet Marius. We correct the dmx addresses on the rgb light controller for the jet lamps and the solenoid valve switch box. All is working fine, it seems. Excitedly, we start to fill the fountain bowl with water (it has taken a long time to get to this stage) ……
….. and with horror find that two streams of water are flowing out of the hexagon hole in the centre of the fountain base over the floor. After a short period of disbelief and panic, we cut off the electric power and investigate further. There are two open holes that should have been closed in the centre of the bowl. They are for the cables that will run from the 2 rgb lamps that have not yet been delivered, to their power supplies in the electronics chamber of the base. PHEW. However, we also discover that there is water leaking from the tubes connected to the water pump system. DAMNATION.
Marius fixes the plumping. He fills the empty holes with cables.
We fill the bowl with water and try out the pumps. Instead of a 4 m jet flowing out from the central pump, a pathetic 4 cm dribble appears. HELVETES FAEN! (very naughty Norwegian swearing). And even though the switch box is working in accordance with the software signals, the valves do not open or close, neither does the water pump that supplies them seem to be responding. SATANS HELVETES FAEN! (okay, so this means “the devil’s hell devil” – an overkill I agree, but I was very disappointed, and there aren’t that many Norwegian swear words to choose from if you don’t want to get sexist).
After much investigation and telephone calls, Marius the Electrician-and-Plumber-and co-problem solver and I conclude that:
1. The pumps are too weak.
2. The tubes supplying them are to wide and long.
3. The solenoid valves welded into the fountain are not the ones that should have been ordered, requiring 250v instead of 12v power.
(More swearing in English this time, but I’m too ashamed to repeat it.)
I call Atle who arrives as soon as he can.
I am mad at almost everybody, including myself. I calm down and apologize – admitting that everyone on this project is entering new ground and stretching themselves in one way or another. It is a case of learning by doing – and doing it together, over coming differences, ambitions and expectations. Looking at the world today that must be a good thing.
Looking at the problem from different angles, we put the water supply tube directly into the central hole (that feeds water to both the cnetral pump and the pump for the 5 valves) in the middle of the fountain bowl, turn on the water and activate the dmx signal that controls the power supply to the pump. The water jet jumps straight up, high into the air. Lovely! So a 3rd pump that sucks water down to the 2 other pumps would solve the pressure problem.
We make a plan to resolve the problems on Monday.
The rest is to follow ……
EPILOGUE
Last night Søren Jessen, a good friend to my sons, died as a result of cancer and the effects of kemo therapy. I can hear his very distinctive Danish accent clearly, and recount the colourful stories my sons came home with when visiting him in the countryside in the summer holidays. It is very humbling news.
Day 3 at Frank’s place
The lovely weather has broken. It’s damp and dreary here in Skien today. What a pity.
Arrived at Frank’s workshop to find the mechanical installation of the EM Fountain almost complete. The base shown here is now the right way up.
Frank and Atle place the bowl on top of it.
Atle and I go to shop for needed parts, while Frank and Marius continue to work. The sniffers have arrived from Martin in Berlin. Four very sweet and mystical silver boxes, all carefully labeled:
The VLF (very low frequency) sniffer has two alternative coil antennas. One is shown here:
The other 3 sniffers have 2 alternative board antennas:
I go back to my hotel (functions as office/studio) to check them out but find that the power adapters are not included in the package from Martin. The shops are closed, so I’ll have to wait till tomorrow to test them. (Wish I’d noticed this earlier.) One thing that is apparent is that it is going to be a real challenge to find out how, and where to mount these on the fountain, and how to protect them from the elements …….
The electrical installation should be complete (or as least as much as it can be before the dmx switch box arrives), so I hope to start testing everything with Marius tomorrow. Hopefully there’s time to get adapters for the sniffers too.
Day 2 at Frank’s place
This post is more of a memory aid for me to remember what goes where in the fountain base as the bottom plates will shortly be put on. It is also the last chance to take a look at the open base and its design on the inside, and from above. We are still waiting for the sniffers to arrive from Berlin, and the dmx switch box to arrive from England.
Here’s 2 photos of the fountain base at the start of day 2:
The 2 pumps have been bolted in place in their chamber on the top of the base (which is still upside down).
L: Marius threads the electric cables through holes from chamber to chamber.
R: Frank has soldered the metal bars on the bottom of the base in place.
L: The last view of the base construction before the bottom panels are put in place.
R: In the break Frank demonstrates how to get power out of electromagnetically charged water.
L: Hole for the central pump/jet water tube.
R: 5 holes for the 5 solenoid valve/jet water tubes
L: The hole for the electric power supply to the central jet pump.
R: 8 holes for the electric cables that lead from the rgb control boxes to the 8 underwater led lights.
L: Pump cables.
R: Solenoid valve cable holes.
L: Frank installs the water tubes that will carry water from the pumps to the 5 solenoid valves and central nozzle.
C: Water tube/pump fixture.
R: Water tube fitting.
L & R: The first base bottom panel is in place on the bottom of the fountain base, covering the computer/dimmer/rgb controller/ sound interface chamber. Atle Barcley (on the left) writing down the things he has to buy for tomorrow.
L. The chamber for the electrical components with base and lid. The parts are being screwed in place, and electric cabling drawn threw holes from chamber to chamber.
R: The water tubes run from the solenoid valves the central hexagon chamber. They will be drawn out of corresponding holes on the bottom of the fountain bowl and feed the 5 pentagon nozzles.
L: I am a bit distraught when I see Marius has dismantled my LAN box, but I’m sure he has a good reason.
R: At the end of the day Frank’s son, David, arrives to check out his dad’s work.
I think that we will be running a bit behind our schedule. The aim was to get the fountain construction finished by Thursday and transport it to an old warehouse at Klosterøya to test it with water in it. However, the fact that the dmx switch box is still sitting in the care of the customs officers in Oslo has put a damper on things ……. I’m a bit concerned about time running down the drain, but have decided not to panic and to keep relaed and confident about it all ….. hmmmm.
The Electromagnetic Fountain 