DIY Hand-Driller Coil Winding Machine With Digital Counter





Introduction: DIY Hand-Driller Coil Winding Machine With Digital Counter

When I built prototypes of my invention (A No-Friction Bicycle Light Generator) before mass manufacturing, I need to test different kinds of coil to fit the product, so I made this coil maker (DIY winding machine). It is easy to be made, low cost and simple.

Link: A No-Friction Bicycle Light Generator
Link (webpage for this winding machine): DIY Hand-Driller Coil Winding Machine with Digital Counter

Full view:

Step 1: Step2

Full view. You can get the pedometer on ebay for few dollars. There are many kinds of pedometer on market, in my mind, the cheaper one is better for building this winding machine. The magnet and reed switch can be bought as door alarm switch set in hardware shop. A old hand-driller.

Hand-driller's handle turning once, the coil will turning about 3.5 turns. So if the digital counter showed 100, the coil will be 350 turns. Each hand-driller may be in different rate, just test it before use it.

A no-friction bicycle lights dynamo

Step 2: 3

Each time the magnet on handle passes (not touch) the reed switch, the padometer's figure go up 1. The handle turns 100 times, the padometer should show "100". Hold a button on pedometer to go back to zero.

Step 3: Step3

other view

Step 4: Step4

How the padometer works? Each time your body jumps, a metal hammer inside pedometer jumps once and touch a point (as a jump switch), send a electrical puls to counter, screen will show figure up "1". Take out the metal hammer, Lead 2 wires out from the jump switch to the reed switch.

Step 5: 5

other view



    • Paper Contest 2018

      Paper Contest 2018
    • Pocket-Sized Contest

      Pocket-Sized Contest
    • Science of Cooking

      Science of Cooking

    We have a be nice policy.
    Please be positive and constructive.




    Very good your mind is good'''''

    A very neat, novel and effective design. If a person didn't have a pedometer or an old el-cheapo electronic calculator to make a turns counter, a manual "people counter" (available at my local 'Dollar Store for $3.00) could be used.

    The counter's push button could be pressed by a cam or lever once per revolution, and the "reset" knob turns it back to zero when you're done. Thanks for posting this nice and "outside the box" take on a coil winder.

    OMG that's good! A pedometer!

    Good counter

    Where can I find the site for your coil winder KIT? Thank You.

    pretty smart....i have some step counters

    Great! I think it can also be done with a bycicle speedometer, since it already as a magnet switch