/diy/ - Do It Yourself

Anonymous Fri Feb 9 12:41:39 2018 No.1328640 [View]
File: 283 KB, 633x679, 1517120992400.png [View same] [iqdb] [saucenao] [google]

>>1328609
https://www.youtube.com/watch?v=JLUrNS8mZVA
https://dspace.mit.edu/openaccess-disseminate/1721.1/97478
Basically I heat some copper wire wound around nylon to create linear actuators. I calculated that 9v(8.5) would give me the temp I needed (120-150F) with the resistance of my Copper. But it takes a while to heat up and I want faster contractions/motions of the actuator. Saw some labs using 12-15v and getting much faster contractions.

So I have to put a certain amount of resistance(2.88ohm) on the wire in order to not fry/short-circuit my PSU?
I do have some spare PSUs laying around I could use. Do you think using the 12v and -12v pins might damage the PSU if I use it for joule heating?

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/diy/ - Do It Yourself

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