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Thread: High Speed Precision motors for Lenticular scan or Grating Lissajous.

  1. #1
    mixedgas's Avatar
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    Default High Speed Precision motors for Lenticular scan or Grating Lissajous.

    I need to pay some bills, so the spare parts drawer is getting emptied

    These are Portescap Escap 26BC 6A 110s. I have three of them in tested, excellent condition, removed from lightly used medical gear.

    These can very from a few RPM to 9600 rpm by varying the applied voltage to the coil from 2.5 volts to 15 volts. They draw about 80 mA when running no load.

    They need 5V at 20 mA for the control logic. If your not using the control logic, then you can run them from 5 volts minimum to 15 volts maximum by tying the control line to the power line.

    Why are these special? Well.... The brushless driver inside has a pulse per rev output, a enable input, and a direction input. This makes it very easy to "phase lock" the speed of these to a abstract with some simple electronics.

    They will run with just power connections, as the inputs have pull up resistors.

    If you dont need the phase lock, you can run them open loop, as is, and get a very high quality, very fast, VERY QUIET motor for LENTICULAR lumia and LISSAJOUS grating effects. If you have two gratings on two motors and the beam passes through in series, some very cool effects happen.

    One other special thing. The thick shafts and tight bearings are rated for one heck of a amount of side load, yet only supposed to move radially say 40 microns, so these are great for those brutal spinning disks.

    35$ + SHIPPING FOR ALL THREE. Go price one on Ebay, and see they are 40-80$ a motor for similar sizes. If you need spindles to hold a disk, I can lathe them at the cost of the brass.
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    Bradfo69's Avatar
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    Done. And a PM to "up the ante" on the way.

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    Brad,

    Let's talk - I sent a PM as well.

    Greg
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    Sorta Sold, in 79.2 microseconds to Displaser. He got the PM in first, and I was reading PMs.

    Brad

    How about I come up with one or two or three more?

    Ie the ones that were not that quiet when I tested them and the quiet ones with narrow shafts? Either way, you win.

    Steve
    Last edited by mixedgas; 03-07-2013 at 19:05.
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    Well played Greg... your fingers were faster.

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    you guys are cracking me up.
    suppose you're thinkin' about a plate o' shrimp. Suddenly someone'll say, like, plate, or shrimp, or plate o' shrimp out of the blue, no explanation. No point in lookin' for one, either. It's all part of a cosmic unconciousness.

  7. #7
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    What's the saying? "He who has the most toys... " But I'm very glad Greg got them.

    I seriously need to learn how to type. This "hunt and peck" shit slows me down on separating money from my wallet!

  8. #8
    mixedgas's Avatar
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    You both get them, Brad and Displaser, CHECK YOUR PMs.

    Steve
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    PM read and responded. Thank you Steve!

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    Couldn't have happened to two nicer guys.. You guys rock!!! Lol

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