Added: 3 years ago
From: kmarinas86
Views: 1,936
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  • That's awesome :)

  • What kind of run-time do you get out of it? Have you tested that? Looks fun... I'd love to do something like this one day but... eh... it's a lot of work and I don't have the time to play :(

  • "What kind of run-time do you get out of it? Have you tested that?"

    2 days...

    That was true then, and it is still true now.

    Difference is now I have more than twice as many batteries than in this video. I no longer use paper for my fan but instead us a 19.5" metallic blade fan.

    The power consumption is about the same as before.

  • Oh okay. I thought the video had said 120v, so i had calculated @ 10, which if you bought small ones (1-2AH) would be fairly cheep and a lot less to deal with :)

  • Why don't you use 12v SLA batteries?

  • Right now I am using 300v of batteries. To use 12v SLA batteries to do the same job, I would need 25 of them connected in series.

  • have you been sleeping with Newman??? hehe Good work man...keep seeking!

  • I think if you picked up some bearings at Academy and put a plastic fan blade on there you might be surprised at just how much more air you get out of that Newman replication. Thanks for posting your videos - I think I've watched every one of them. Awesome work!

  • Great idea. That's exactly what I did on 09-24-08. The problem is now that it spins so fast that my blades are now flattening against the wind, so I've got to fix that.

  • I love it.

  • who? kmarinas or the newman machine?

  • both. Kmarinas is the leading person for making a ideal commerical fan. Try to put more weight on your motor, but not to much, this will increase the momentum and it will decease the strain on the batteries.

  • coolio nice!!

  • The question that comes to mind is, why bother with tons of AA batteries when you could get the same power, if not more, from a set of ten lantern batteries in series. They have high miliamp hour ratings and would probably provided much more current. Then your fan might produce decent windage!

  • the newman machine works by voltage and not current

  • "the newman machine works by voltage and not current"

    More specifically, the Newman machine is efficient in the sense that it takes a long time for the current to rise to its full value. The time is proportional to circuit inductance divided by circuit resistance. Higher voltage -> higher rpm -> less time This means the coil still changes energy even when an entire revolution is made. Most power goes to changes in the magnetic field energy (i.e. reactive power) and is not consumed... as heat.

  • I have not found rechargeable lantern batteries yet. I have ordered a:

    Ansmann Energy 16 Battery Charger for AAA, AA, C, D and PP3 NiCd and NiMH Rechargeable Batteries

    Which should be at my house in a few days.

  • This is good stuff, and you know what.................if it wasn't such a PITA to wrap that wire I would actually give this a go.

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