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PHOBoS
Joined: Jan 14, 2010 Posts: 5591 Location: Moon Base
Audio files: 705
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Posted: Sat May 31, 2014 2:45 pm Post subject:
magnetic stirrer |
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a CPU fan, a HDD magnet and a PWM controller circuit from here (with some different values).
The fan is mounted on a thin piece of wood, slightly smaller then the box, which is attached using some double sided adhesive foamtape to reduce
vibrations. I tried to get everything centered but it was pretty hard to get the magnet right because of it's shape. It's not too bad though, it doesn't
'walk away' and at low speeds it works great. I riveted some clear plastic to the top of the box as protection.
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_________________ "My perf, it's full of holes!"
http://phobos.000space.com/
SoundCloud BandCamp MixCloud Stickney Synthyards Captain Collider Twitch YouTube |
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blue hell
Site Admin
Joined: Apr 03, 2004 Posts: 24081 Location: The Netherlands, Enschede
Audio files: 278
G2 patch files: 320
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Posted: Sat May 31, 2014 4:12 pm Post subject:
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Nice!
Hope it doesnt make too much noise? _________________ Jan
also .. could someone please turn down the thermostat a bit.
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PHOBoS
Joined: Jan 14, 2010 Posts: 5591 Location: Moon Base
Audio files: 705
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Posted: Sat May 31, 2014 4:48 pm Post subject:
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As long as I don't turn up the speed very high it doesn't make much noise.
And the noise is coming from the stirbar, which is a decapitated nail right now, grinding on the glass.
I don't really have a good mic to record it but I was thinking that if I add a reed switch I should be able
to use it as an oscillator _________________ "My perf, it's full of holes!"
http://phobos.000space.com/
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Antimon
Joined: Jan 18, 2005 Posts: 4145 Location: Sweden
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analog_backlash
Joined: Sep 04, 2012 Posts: 393 Location: Aldershot, UK
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PHOBoS
Joined: Jan 14, 2010 Posts: 5591 Location: Moon Base
Audio files: 705
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Cynosure
Site Admin
Joined: Dec 11, 2010 Posts: 966 Location: Toronto, Ontario - Canada
Audio files: 82
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Posted: Mon Jun 02, 2014 11:37 am Post subject:
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You can get bioluminesent algae that glows when the water moves. No led's required and the glow will last for a long time (glow sticks only last for a few hours). |
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analog_backlash
Joined: Sep 04, 2012 Posts: 393 Location: Aldershot, UK
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Posted: Mon Jun 02, 2014 4:15 pm Post subject:
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Cynosure wrote: | You can get bioluminesent algae that glows when the water moves. No led's required and the glow will last for a long time (glow sticks only last for a few hours). |
True and it's a 'greener' alternative (as long as you don't resort to grow lights) but you can wear them out and they stop glowing (albeit temporarily). Your right about the glow sticks - once the chemicals are exhausted they stop glowing.
Don't know what the algae rights people will think about it . |
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PHOBoS
Joined: Jan 14, 2010 Posts: 5591 Location: Moon Base
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Skrog Productions
Joined: Jan 07, 2009 Posts: 1196 Location: Scottish Borders
Audio files: 155
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Posted: Tue Jun 03, 2014 9:55 am Post subject:
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cool phobos , , now , how about warm ferric chloride for some speed etching heheheh , hmmmm , it would probably strip it bare including the resist areas
Dave. |
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PHOBoS
Joined: Jan 14, 2010 Posts: 5591 Location: Moon Base
Audio files: 705
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Skrog Productions
Joined: Jan 07, 2009 Posts: 1196 Location: Scottish Borders
Audio files: 155
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Posted: Tue Jun 03, 2014 10:05 am Post subject:
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RingMad
Joined: Jan 15, 2011 Posts: 427 Location: Montreal, Canada
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Posted: Mon Jan 05, 2015 1:12 pm Post subject:
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PHOBoS wrote: | I was thinking that if I add a reed switch I should be able
to use it as an oscillator |
Magnetic oscillator sounds like a cool idea! A stiroscillator!
-- James |
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