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Rolling wheel / Goldberg / Goldland / After School Materials / Homeschooling / Science Textbooks(International shipping available)

Basic Information
Manufacturer Self-production
Country of Origin 대한민국
Price $10.50
Reward Points $60.00
Product Code P00000OT
수량 수량증가수량감소

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Rolling wheel / Goldberg / Goldland / After School Materials / Homeschooling / Science Textbooks up down 10.5 (  60.00)
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 Download parish materials from the library.
* The copyright of the images and videos is owned by the Forest Spring. Unauthorized use may cause responsibility for use. (See copyright law)








Gold land, where a gear wheel rolls and hits a fixed ball to activate another device


"Rolling wheel"





Material

Corrugated cardboard, Plastic, EVA, Bolt, Nut





Components

Corrugated paper, transparent rod, white rod, EVA washer, Bolts, Nuts





Goldberg connector. When the gear wheel rolls and hits a fixed ball, activate the other device.

It can be used between the B-4 pull switch and the C-1 tongs leg and can also be used in other devices.

You can also easily understand many scientific principles while making a rolling wheel.












































1 step. Making a stand




① Fold the two stands along the fold line.


② Fold the two stand supports along the fold line.


③ Assemble the groove of the stand and stand support.











2 step. Making a rail




① Connect the transparent rod to the first hole of stand 1 and the third hole of stand 2.












3 step. Making a gear wheel




① Materials that make gear wheels.

(Assemble in order from left)


② Fit two bolts into the paper washer.


③ Insert the paper washer into the first wheel.


④ Insert 6 paper washers in order of gear wheels-> paper washer and fix with nuts.


⑤ Put the white rod into the completed gear wheel and fix both sides with EVA washer.












4 step. Making a ball fixed board



① Fold the ball anchoring board along the fold line.

Connect the ball fixing board to the transparent bar of stand 2.












5 step. Complete the rolling wheel





① Place the gear wheel inside the stand 1. 

(If the EVA washer on the gear wheel touches the transparent rod a lot, the wheel will not roll. Adjust the spacing well.)


② Place the ball on the ball fixed board.

(Make sure the two transparent bars are level)












6 step. Operate the rolling wheel




① The stopper of the pull switch keeps the gear wheels from rolling.

As the pull switch activates, the stopper comes off and the wheel rolls.


② The gearwheel rotates and hits the ball, which leads to the next movement.






















 










Payment

We accept the following forms of payment:
- Credit Card
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- PayPal

Shipping

Please take into consideration that some products may take additional time for delivery and processing.
Important: Your order is shipped once your payment has been cleared. Please contact our customer service center if you would like to request an exchange or return on your order.

- Customs and Duties

The recipient will be held responsible for international shipments which may be subject to import duties and taxes. Please be advised that these charges are levied by the destination country and we do not have control over them. In the case that the recipient refuses to receive the parcel, the order will be returned to Korea and will not be re-shipped. Relevant expenses (round-trip shipping, customs, etc.) will be deducted from the refund.

Returns & Exchanges

1. Requirements:

Please take into consideration that we only accept qualifying returns but not exchanges. Refunds are issued once the returned products clear our inspection.

1) An item is eligible for cancellation if:
-you posted a Return request within 24 hours of payment and your order is still under “Pending” status (if your order is under “Queued for Shipment” status, please contact our customer service center) or
-the order is delayed for more than 10 days since payment and you have not received any notification regarding the delay; or
-the ordered item is out of stock.

2) We accept return(s) if:

-you receive a product different from your order; or

-you receive a defective product.

**Return Instructions

(1) Post a return request on our Return forum within three days of receipt. You are required to attach the photos of the received product(s) and include the item code, the order number, and the reason for the return.

(2) A customer service representative will be in contact to assist you by email or phone.

(3) Items returned must be in their original condition, which includes tags and any packaging. Also, you need to include a note of your order number, name, and user ID.

*Please be advised that returns are accepted ONLY IF you followed the instructions above and your return request has been approved by our staff. Returns that are shipped to us without any prior consent are not accepted.

*Please note that EVEN the defective/incorrect item(s) must be returned with all of the tags and labels intact. The item(s) must be sent in their original packaging and unworn.

*Please include all contents of the original package and free gifts (if applicable) in your return packaging.

* Shipping fee for any return caused by our fault will be paid by the company. However, if EMS’ cash on delivery is not possible then you can scan the return receipt and either mail it with the item to return or post an image of it on the forum. The shipping fee will be refunded once the returned item has arrived.

3) We do not accept return(s) if:

-you are returning the items just because you changed your mind (on size, color, etc.)
-you are returning shoes, bags, or any other accessories
-the products are damaged due to your mishandling
-your return request is not approved by our staff

The following items are not considered defective:

* Items that are originally manufactured without tags or labels
* Items with creases that may have been made while shipping
* Items with unsatisfactory/incomplete finish due to mass production

4) If there is a missing item from your order:

*Contact our customer service center by phone or by forum (if you cannot reach us by phone) within 1 day of delivery.
*Please keep all contents of the original package including packaging material (boxes, plastic bags etc.) with you until you are instructed otherwise.

Please note that we may not be able to process the refund for your missing item if you lose or damage any packaging material.

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