Frankenstein's Components.

Discussion in 'Electronic Projects' started by (*steve*), Nov 27, 2012.

  1. (*steve*)

    bigone5500

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    Stupid spammers.....
     
    bigone5500, Jan 10, 2017
    #41
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  2. (*steve*)

    Johan_Ha

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    Our school has moved from an old building and the building is about to be closed and demolished. A lot of old electronics was left there, stuff we didn't use anymore.
    From two wire telephones I picked the piezo mics and speakers. From one matrix printer I picked two stepper motors and a dented belt with its dented wheels. I also have two identical laser printers with worn out drums. They probably contain one stepper motor each. And a lot of components, together more worth than the 25 € a working printer of same model is worth on the 2nd hand market.

    The step motors might turn into robot arms powered by two car accumulators and controlled by Microbits.
     
    Johan_Ha, May 6, 2017
    #42
    hevans1944 and davenn like this.
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  3. (*steve*)

    Tha fios agaibh

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    My youngest was complaining that his Power wheels battery operated car wasn't fast enough for him.

    I added a second 12v battery in its storage compartment and wired in a relay that switches it from 12v to 24v when a button is pushed. I didn't want it full 24v starting out for fear the excessive torque would strip the gears. The way it's wired now; he has to first hold down the accelerater pedal and once the car is moving he can push his "turbo" button and the car speeds up dramatically.

    The car is twice as fast and my boy is thrilled.
     
    Tha fios agaibh, Aug 29, 2017
    #43
  4. (*steve*)

    Braeden Hamson

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    You can get lithium cells out of laptop batteries (no surprize) if you go to Goodwill they sometimes have stacks of them.
     
    Braeden Hamson, Aug 30, 2017
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