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Thread: Custom Ball Lifter with worm method

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    Blind Shooter mrdummy's Avatar
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    Default Custom Ball Lifter (with worm method)

    Hello,

    Some people have already seen my plans in another thread. I'm started with building the ball lifter for Pachinko case. I have examined different methods to lift ball 82 cm higher.

    The most used method is with gearwheel and motor with gearbox. It moves the balls through the long tube to upper tray. But this has disadvantage: you need many balls to make it possible.
    And this is also not more made, it's now expensive tool on Ebay.

    I have searched on internet for possible lift methods. Youtube has many videos with marble machines. The worm lift seems best method because it's also easy to control speed and doesn't depends many on gravity.

    The methods are for example in pdf files:
    http://mrdummy.net/zooi/pachinko_lift.pdf
    http://mrdummy.net/zooi/pachinko_lift_v3.pdf
    http://mrdummy.net/zooi/pachinko_lift_v4.pdf

    The first pdf explains the worm lift and 3-wheel lift. The wheel lift is easy to make but it's pretty big construction.
    The second v3 pdf shows another easy contruction and also strange one. It use the gravity to make roll ball to other side. Not very fast, but it can lift many balls.
    Then i decide to use v4 method with worm lift. It's small and you can make it faster with higher rpm speed. That is good advantage.

    The another bonus with worm lift you can lift more balls when needed. For example at both sides ball guides, that doubled the total balls.

    Or make the ball guides a bit wider, that is also more balls possible. But for here, i do one ball width guide.

    The choosen motor has 1:50 gearbox. The motor runs at 104 rpms with load. This means the worm lift can lift 104 balls per minute. Yes it's easy to calculate how many balls it can lift in one minute.

    I have slighty redesigned the plan now. The pictures below shows now the final plans.
    Pachinko lift side view.jpgPachinko lift upper view.jpg

    If i'm right, the Pachinko case is approx. 84x56 cm width, right? I hope these are right dimensions for modern pachinko case. The worm lift here is 82 cm long.

    Also i hope the ball exit is a bit moved to back, thus little out of case. Then the upper view should not have problems to catch balls.

    The used MDF material is 12 mm thick. That makes the build a bit strong.
    For worm lift, i use standard materials. One meter copper tube, used for waterworks, and 10 meter electricity wire with 2,5mm2, or 1,7mm diameter.

    A time relay circuit is added to stop the motor when there is no ball in lower tray.

    I have also planned the return tube/tray in my plan, but it's not visible in designs. That comes later when i have found the best method.

    The build process is already started.

    Some photos Day 1:
    P1000224.jpgP1000236.jpgP1000228.jpgP1000242.jpgP1000249.jpgP1000248.jpg
    Attached Images Attached Images

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    Blind Shooter mrdummy's Avatar
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    Default Re: Custom Ball Lifter (with worm method)

    Day 2:
    P1000253.jpg
    Materials arrived.

    P1000277.jpgP1000280.jpgP1000286.jpgP1000259.jpg
    Soldering small pieces copper wires is very long work...

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    Blind Shooter mrdummy's Avatar
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    Default Re: Custom Ball Lifter (with worm method)

    Day 3:
    P1000291.jpgP1000292.jpg
    Finishing soldering small copper wires... (phew)

    P1000303.jpgP1000311.jpgP1000314.jpg
    Outer ring wire soldering started. Use 4,5mm drill as support for it.

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    Blind Shooter mrdummy's Avatar
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    Default Re: Custom Ball Lifter (with worm method)


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    Pachi Puro Moparformances's Avatar
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    Default Re: Custom Ball Lifter (with worm method)

    how many hours of time do you have invested???

    4 days = ___ hours?

    quite a projest you have going... looks great
    Never Doubt that a small group of thoughtful, .......... /........ If your not going to stand behind our troops
    ...committed people can change the world. ............. /.................Please, Please stand in front of them
    .....Indeed, it is the only thing that ever has............./
    .........................................Margaret Mead

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    Blind Shooter mrdummy's Avatar
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    Default Re: Custom Ball Lifter (with worm method)

    Day 1 ~ approx 3 hrs.
    Day 2 ~ approx 4 hrs.
    Day 3 ~ approx 4 hrs.
    Day 4 ~ approx 6 hrs.

    Tomorrow i continue with building MDF parts.

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    Fever Hunter WondersPachi's Avatar
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    Default Re: Custom Ball Lifter (with worm method)

    Wouldn't that take even more balls since its now a line wrapped around a pole?. Whats to keep the balls from rolling down other than more balls behind the ones that are being lifted?. With a gear lifter you just need enough to stack a straight line to the top of the machine. It should be called stacking or they should be called ball stackers because they don't lift, they stack. Even if you use a worm or drill method you'll still need backer balls to keep them from rolling back down right?

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    Goodwill Ambassador luckydog's Avatar
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    Default Re: Custom Ball Lifter (with worm method)

    i think he's going to put a tube over it
    幸運わんわん Luckydog or Yukiwanwan in Japanese

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    Blind Shooter mrdummy's Avatar
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    Default Re: Custom Ball Lifter (with worm method)

    Yes, sort of guide to keep prevent rolling back. You see it in next steps. Give me some time to complete it

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    Default Re: Custom Ball Lifter (with worm method)

    Trying to build several ball lifter already, my guess is, that the entrance to the lifter will be the biggest problem. I'm afraid you will have jams there.

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    Master Inventor daverob's Avatar
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    Default Re: Custom Ball Lifter (with worm method)

    Thanks for all of the pictures, it looks like an interesting project so far, please keep us updated with your progress.

    I agree with Berzerk, the hardest part of the design is to get the balls flowing freely and not jamming up.

    I'd recommend building your ball feeds before attaching the motor, and while you're still experimenting with getting the ball feeds working without jamming, only test it by turning the gear by hand.

    Copper wire is quite soft and if you have a ball jam it's quite likely to bend the wire. If you run it by hand, you'll feel that there's a problem before any damage is done. The motor will just keep going until something breaks.

    Also the stall current for a motor like that will be around 5-10 times the normal no-load current. The power supply you've selected doesn't look like it will be up to providing 1.5-2A, so check it's specs to make sure it's got overcurrent/short circuit protection on it's outputs. Many cheap PSUs don't like output short circuits for very long, so you might want to add an over-current device in the wiring to the motor. A fuse would be fine, but you'll probably have to replace it every time there is a ball jam, so something like a resettable thermal trip will probably be a better choice.

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    Blind Shooter mrdummy's Avatar
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    Default Re: Custom Ball Lifter (with worm method)

    I will test everything when completed and rotate it with hand to check ball feed.
    The room where ball can roll in is wide enough, but we shall see in practical tests.

    Let's continue with build!

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    Blind Shooter mrdummy's Avatar
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    Default Re: Custom Ball Lifter (with worm method)

    Oh because i have not owned Pachinko, i have important question. See the images:
    Pachinko ball exit A.jpgPachinko ball exit B.jpgPachinko ball exit C.jpg
    Image A: The ball exit is more inside case, which means the tray must place more inside the case.
    Image B: The ball exit is just a the edge. Doesn't sticks out.
    Image C: The ball exit is a bit outside the case. It sticks a little out, tray may placed outside the case.

    Which image shows the correct ball exit? Then i can make build correct tray size.

    I have examined the images and i discovered the tray for exit is just placed below the case in the cabinet. Because this design, the ball exit must sticks a bit out the case part.
    But you may give the correct answer. Thank you.

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    Pachi Puro Moparformances's Avatar
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    Default Re: Custom Ball Lifter (with worm method)

    i would have to say the correct answer is ABC...

    different machines exit in different places... probably the best bet for one would be your "B" Image...

    keep in mine the height and width of the catch hopper as well.. i have found that one hopper fits one machine but will not fit another...

    on the machine i have my orange lifter on it sits kinda sideways to reacy under and catch but has to swing out for the lifter tube to clear the machine's back
    Never Doubt that a small group of thoughtful, .......... /........ If your not going to stand behind our troops
    ...committed people can change the world. ............. /.................Please, Please stand in front of them
    .....Indeed, it is the only thing that ever has............./
    .........................................Margaret Mead

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    Default Re: Custom Ball Lifter (with worm method)

    I have a machine with two ball exits about 2 inches apart and not centered. That would need a custom custom ball collector
    IMAGINATION IS MORE IMPORTANT THAN KNOWLEDGE

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    Pachi Puro Moparformances's Avatar
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    Default Re: Custom Ball Lifter (with worm method)

    i would say that all machines have 2 exit points but im not sure all really do... but most have 2 points one exit for winning balls and another for loosing balls... about 2 or 3 inches apart
    Never Doubt that a small group of thoughtful, .......... /........ If your not going to stand behind our troops
    ...committed people can change the world. ............. /.................Please, Please stand in front of them
    .....Indeed, it is the only thing that ever has............./
    .........................................Margaret Mead

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    I was thrown out of Top Gear Drunkenclam's Avatar
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    Default Re: Custom Ball Lifter (with worm method)

    I thought winning balls came out the front of the machine

    Unfortunatly all machines seem different. With different exit points and circuitry in the way. And the balls come out at different angles too.
    Ian #UKPachinko

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    Blind Shooter mrdummy's Avatar
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    Default Re: Custom Ball Lifter (with worm method)

    The best average is image B, it seems.
    But the feed hopper above is always same. That is one lucky thing.

    I have redesigned the exit tray part.

    Pachinko lift v5-3.jpgPachinko lift v5-1.jpgPachinko lift v5-2.jpg

    That should catch most ball exits. For your case, you can move tray left or right.

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    I was thrown out of Top Gear Drunkenclam's Avatar
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    Default Re: Custom Ball Lifter (with worm method)

    To only let one ball in per revolution. You could infill the side of the screw at the bottom for 1 or 2 revolutions to prevent the next ball sneaking in. As the screw turns. It acts like a gate then.
    Ian #UKPachinko

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    Pachi Puro Moparformances's Avatar
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    Default Re: Custom Ball Lifter (with worm method)

    Quote Originally Posted by Drunkenclam View Post
    I thought winning balls came out the front of the machine
    the payout/winning balls come out front tray, but the actual ball that went in the winning pocket will exit the back of the machine from a differant point then the losing balls.. sorry for the confusion..
    Never Doubt that a small group of thoughtful, .......... /........ If your not going to stand behind our troops
    ...committed people can change the world. ............. /.................Please, Please stand in front of them
    .....Indeed, it is the only thing that ever has............./
    .........................................Margaret Mead

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