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Author Topic: Built my own high resolution (500 CPR) spinner!  (Read 2483 times)

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Major Rock Hardy

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Built my own high resolution (500 CPR) spinner!
« on: October 06, 2007, 12:21:39 am »
See pictures below.  Machined out of 2" square aluminum tube, brass, and stainless for the shaft (1/4").  Yes I did the machining.

Sensor is a Avago AEDB-9140-A06 with matched 500 CPR codewheel.  Just hooked it up last night to my Opti-PAC and it works great!  Gotta give credit to Whammoed for the 2" aluminum square stock idea (http://www.nicemite.com/Gyramite/images/02Prototype.JPG) - although I kinda reversed the design.

Here is a link to the sensor's homepage in case you want more info:
http://www.avagotech.com/products/motion_control_solutions/encoder_and_codewheel_bundle/aedb-9140-a06/

Sensors run off 5V (supplied by OptiPAC), just require a couple 2.7 K resistors as pull-ups.  Only tricky thing to watch out for is that the encoder wheel is VERY delicate and soldering .050" spaced contacts sucks.  Ok, here's your pics:
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DaOld Man

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Re: Built my own high resolution (500 CPR) spinner!
« Reply #1 on: October 06, 2007, 01:08:19 am »
Sweet!
Good work...
What did the sensor cost? I dont see a price anywhere on the website.
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Major Rock Hardy

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Re: Built my own high resolution (500 CPR) spinner!
« Reply #2 on: October 06, 2007, 01:19:06 am »
Quote from: DaOld Man on October 06, 2007, 01:08:19 am
Sweet!
Good work...
What did the sensor cost? I dont see a price anywhere on the website.

Thanks for the compliment!

I was actually able to get samples (free).  This was over a year ago so I don't know the current status of sample-getting.

Also, if anyone's interested, I will post the blueprints.  I am working on rev2 right now because the spacing between the grooves on the shaft allows a bit too much vertical slop.  The codewheel stays within the gap of the sensor module but just barely.
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bfauska

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Re: Built my own high resolution (500 CPR) spinner!
« Reply #3 on: October 06, 2007, 01:48:27 am »
Looks really clean.  Nice work, I've though about doing something similar, but with just a mouse hack.  Maybe your work will help get me inspired.  Thanks for sharing and I bet that the plans would be appreciated by somebody, if not now than sometime down the road.
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Kremmit

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Re: Built my own high resolution (500 CPR) spinner!
« Reply #4 on: October 06, 2007, 01:54:27 am »
 :applaud: :notworthy: :applaud:
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Zeppo

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Re: Built my own high resolution (500 CPR) spinner!
« Reply #5 on: October 25, 2007, 12:09:05 am »
That's very cool.

I'd be interested in blueprints or any other measurements or tips.

Do you think it could be modified to be a push/pull like the Blackhawk?
I've been thinking about building one of those for a while.

http://www.apachecontrols.com/

 :cheers:
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