Cheap optical encoders


Page 1 of 2 12 LastLast
Results 1 to 12 of 21

Thread: Cheap optical encoders

  1. #1
    Registered
    Join Date
    Apr 2005
    Location
    USA
    Posts
    8
    Downloads
    0
    Uploads
    0

    Default Cheap optical encoders

    Does anyone know where I can get some really cheap optical encoder wheels to play with? I just want to built some simple circuitry using an optical encoder.
    I tried using the guts from a computer mouse but after taking it apart you're confronted with the mechanical challenge of mounting the wheels, led's and receivers on your circuit board (and getting them lined up just right). Something that comes in it's own little package with a turnable shaft and a few wires coming out would be best.
    Everything I've seen online so far is really expensive; I'd think there must be someplace to be a computer mouse-like setup for a couple bucks.

    Thanks for any ideas!
    Chris Hansen

    Similar Threads:


  2. #2
    Gold Member Bloy2004's Avatar
    Join Date
    Oct 2003
    Location
    Sturgeon Bay, WI
    Posts
    927
    Downloads
    0
    Uploads
    0

    Default

    Here's an encoder that just ended on Ebay...item No. 7507259646. There are more offered by searching "encoder". I'm just wondering if this is what you had in mind, and if the price is right.

    Bloy



  3. #3
    Registered
    Join Date
    Jan 2005
    Location
    Missouri
    Posts
    746
    Downloads
    0
    Uploads
    0

    Default

    Hi, I noticed where you are from and I may have a source for you. A while back I traded some stuff at a hobby shop near you, Slot and Wing, northeast corner of Prospect and Hwy 72. I hope that's right, it's been a while. There was a bunch of servo motors and I think some may have encoders on them.There was a section in front of the counter that had a bunch of stuff that were odds and ends, that is where he kept them. Who knows I may have more at home but I'm 200 miles southwest from there. Good luck.

    If it's not nailed down, it's mine.
    If I can pry it loose, it's not nailed down.


  4. #4
    Registered
    Join Date
    Apr 2005
    Location
    USA
    Posts
    8
    Downloads
    0
    Uploads
    0

    Default

    Bloy,

    That's just about what I'm looking for. I'll keep an eye out on ebay.


    2muchstuff,

    Yup, I've been there. But every hobby servo I've seen uses a potentiometer on the output shaft.



  5. #5
    Registered
    Join Date
    Jan 2005
    Location
    Missouri
    Posts
    746
    Downloads
    0
    Uploads
    0

    Default

    NO,NO,NO These are NOT hobby servos

    If it's not nailed down, it's mine.
    If I can pry it loose, it's not nailed down.


  6. #6
    Registered
    Join Date
    Jan 2004
    Location
    United States
    Posts
    231
    Downloads
    0
    Uploads
    0


  7. #7
    Gold Member
    Join Date
    Jun 2003
    Location
    United States
    Posts
    1359
    Downloads
    0
    Uploads
    0

    Default

    I have been watching ebay quite a bit finding good stuff from time to time,
    search "renco" theres a guy who sells trays of these, theres a tray of 5 for like $100 on there right now I think. the only thing I dont like is the shaft size, I dont think it would be a problem to make a bushing to fit the right size.

    Jon



  8. #8
    Registered
    Join Date
    Jan 2005
    Location
    Missouri
    Posts
    746
    Downloads
    0
    Uploads
    0

    Default

    I found another box of servo motors in the basement, these are the ones that I was talking about. I checked them out: Japan Servo Co., Type:dS48BT25-2, P/N:127K3190, 6.4 V/KRPM. They have a 2 wire tach on the back end of them. Sorry about that.

    If it's not nailed down, it's mine.
    If I can pry it loose, it's not nailed down.


  9. #9
    Gold Member
    Join Date
    Jan 2005
    Location
    Toronto, Canada
    Posts
    1695
    Downloads
    0
    Uploads
    0

    Default

    Use an optical mouse. It has no moving parts.



  10. #10
    Registered
    Join Date
    Apr 2005
    Location
    USA
    Posts
    8
    Downloads
    0
    Uploads
    0

    Default

    How do I connect a rotating shaft to an optical mouse?



  11. #11
    Gold Member
    Join Date
    Jan 2005
    Location
    Toronto, Canada
    Posts
    1695
    Downloads
    0
    Uploads
    0

    Default

    Attach a disc to the shaft and mount the mouse sensor about 1mm from it. Alternatively, paint the shaft and sense it directly. It depends on your rpm.



  12. #12
    Gold Member Bloy2004's Avatar
    Join Date
    Oct 2003
    Location
    Sturgeon Bay, WI
    Posts
    927
    Downloads
    0
    Uploads
    0

    Default

    Quote Originally Posted by 2muchstuff
    NO,NO,NO These are NOT hobby servos

    Hi 2muchstuff,

    I'm not sure what you mean. Could you elaborate? There's still a lot of wetness behind my ears ...

    Bloy



Page 1 of 2 12 LastLast

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  


About CNCzone.com

    We are the largest and most active discussion forum for manufacturing industry. The site is 100% free to join and use, so join today!

Follow us on


Our Brands

Cheap optical encoders

Cheap optical encoders