I need a bunch of solenoids for a small organ and I can't afford to spend a few dollars on each one so I'm trying to make my own. I've got a pretty nice thing going with a plastic bobbin and 30 gauge magnet wire.
My question is, what is the best way to get some good actuation and power out of it in terms of permanent magnet placement and size? Does having a longer magnet to pass through the center increase the power/actuation? In other words, would having say a 12 inch magnet bar to pass through it cause the magnet to want to pass all the way from one end to the other with a consistent strength or would I be trading actuation for power? Does length not matter aside from it's overall power?
I'm not trying to get 12 inch actuation, I just want to know what to look for to get the most power. I shouldn't need any more than a centimeter of actuation and even that would be a lot. The inside of the bobbin is exactly 1/4" by just under 1/2".
In other words, does the magnet want to pass through or to align? I suppose now that I phrase it that way it's pretty obvious that it wants to align or else you'd have a perpetual motion device. So should I be terribly concerned about the length?
Thanks for any info
Edit: ok after some more experimenting my new question is, which would get me more power over about a cenimeter: a long piece of metal or a very short piece of magnet?
My question is, what is the best way to get some good actuation and power out of it in terms of permanent magnet placement and size? Does having a longer magnet to pass through the center increase the power/actuation? In other words, would having say a 12 inch magnet bar to pass through it cause the magnet to want to pass all the way from one end to the other with a consistent strength or would I be trading actuation for power? Does length not matter aside from it's overall power?
I'm not trying to get 12 inch actuation, I just want to know what to look for to get the most power. I shouldn't need any more than a centimeter of actuation and even that would be a lot. The inside of the bobbin is exactly 1/4" by just under 1/2".
In other words, does the magnet want to pass through or to align? I suppose now that I phrase it that way it's pretty obvious that it wants to align or else you'd have a perpetual motion device. So should I be terribly concerned about the length?
Thanks for any info
Edit: ok after some more experimenting my new question is, which would get me more power over about a cenimeter: a long piece of metal or a very short piece of magnet?
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