Winder counter suggestion?

Discussion in 'Tele Home Depot' started by Potatocaster, Jan 13, 2020.

  1. Potatocaster

    Potatocaster TDPRI Member

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    Hi all, I have a Pennstate Penn Pal lathe I've started using for pickups. I had originally bought materials for a winder counter, but the penpal doesn't work with the instructables machine I bought parts for as the disk for that is too large.

    Anyone have any recommendations for a counter style that can handle 1.5k turns per minute? I'm fairly new to this business. Affordable is nice.
     
  2. nickhofen

    nickhofen Friend of Leo's

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    I use the counter in the photo.You can find it on AliExpress and eBay also.
    Screenshot_2020-01-13-08-04-27-016_com.alibaba.aliexpresshd.jpg
     
  3. kbold

    kbold Tele-Afflicted Silver Supporter

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    At that speed electronic would be better than mechanical.
    Proximity switch (picking up counts from a protruding piece of metal) into a digital counter.
    Setup should be easy, and fairly cheap.

    Edit: Someone beat me by a few seconds.
     
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  4. nickhofen

    nickhofen Friend of Leo's

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    It happens to me all the time!
    :lol:
     
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  5. Fiesta Red

    Fiesta Red Friend of Leo's

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    You must have a HUGE house.

    I counted all the winders on my house and only had to take off one shoe!
     
  6. Jupiter

    Jupiter Telefied Silver Supporter

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    I got basically the same one as nick. I think it's good up to 1200 rpms or something.
     
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  7. guitarbuilder

    guitarbuilder Telefied Ad Free Member

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  8. Potatocaster

    Potatocaster TDPRI Member

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    Thank you so much everyone! This has been super helpful!
     
  9. RickyRicardo

    RickyRicardo Friend of Leo's

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  10. Potatocaster

    Potatocaster TDPRI Member

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    It's a struggle, but I try to fight the good fight with my legion of counters ;)
     
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  11. Potatocaster

    Potatocaster TDPRI Member

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  12. RickyRicardo

    RickyRicardo Friend of Leo's

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    That'll work. I haven't had to go to 10000 on the pickups I've made so far so a 4 digit counter works for me.
     
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  13. Potatocaster

    Potatocaster TDPRI Member

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    I'm aiming for lower winds myself as well.
     
  14. darkforce

    darkforce Tele-Meister

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    From the description it does not look like it has a count feature (it does count internally, but I think it will just output revolutions per minute).

    For the winder I'm currently building I used an Infineon TLE4905L Hall sensor connected to an Atmel microcontroller. The sensor is connected as an interrupt, so just counting all the leading or trailing edges is all that needs to be done. The count is displayed along all the other info (set number of counts, winding direction, speed etc.) on a small LCD display with HD44780 controller. If you want further information on this design let me know.

    Best regards
    Johannes
     
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  15. RickyRicardo

    RickyRicardo Friend of Leo's

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    You're right. I didn't notice. That is a rev counter. The one I posted is a proper counter.
     
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  16. Ronkirn

    Ronkirn Doctor of Teleocity Vendor Member

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    guys get an optical counter,, a magnetic proximity counter limits the speed of the wind to about 1000 - 1200 rpm. that means the whole process from time ya start feeding the start through the eyelets, get the bobbin mounted.. get the thing would and off and the finish 3rd through the eyelets is gonna be about 15 minutes per pickup..

    With an optical, once you gain a little experience you can wind up to 2500 .. that drops the time significantly...

    the reason is "dwell", the time the magnet is in close enough proximity to the sensor to activate the counter... with the light activated one, it's instant.. not so with the magnet...

    rk
     
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  17. darkforce

    darkforce Tele-Meister

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    If we are talking Hall effect sensors (reed switches are indeed too slow for this application), this should not be a problem. Even 10000rpm with a single magnet is still shy of 170 Hz for the sensor. I think you would be hard pressed to mechanically rotate just the magnet fast enough to see the bandwidth limit of a typical Hall sensor.

    An optical sensor also has limited bandwidth. Granted, that bandwidth can be quite high (easily in the GHz regime for fast detectors), but still limited. For this application it does not matter at all though :lol:.

    Best regards
    Johannes
     
    Last edited: Jan 14, 2020
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  18. Potatocaster

    Potatocaster TDPRI Member

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    Do you have any suggested models? I've tried to find one, but I'm out of my depth
     
  19. Ronkirn

    Ronkirn Doctor of Teleocity Vendor Member

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    Sorry but no.. I built my lathe over 15 years ago... back then I got the counter off eBay... perhaps others that have built winders more recently may have a lead..

    r
     
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  20. Potatocaster

    Potatocaster TDPRI Member

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