If you have trouble deciding what to do with your day then the Dynamometer is just the machine for you. Similar to our Pneumatic Engine, this model operates by turning air pressure into motion. The difference is that this model will give direction to your otherwise aimless day. Blow on the top gear to set the mechanism in motion. The air pressure you apply spins the arrow until it lands on your task for the day. Now get to it! The Dynamometer is one of the simplest UGEARS models but at the same time it demonstrates several basic principles of mechanics, including the cascade of gears and the mechanical junction known as the Geneva drive.
- Dimensions of the model: 5.8*2.8*6.7in (147*72*170mm)
- Package size: 14.6*5.5*1.2in (37*14*3cm)
- Number of parts: 48
- Estimated time of assembly: 1-2 hours
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USD 33.00/pieceUSD 12.68/pieceUSD 29.99/pieceUSD 32.00/pieceUSD 28.88/pieceUSD 9.99/pieceUSD 28.88/piece
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Please make sure your aliexpress address is correct before you pay. We do only ship to your aliexpress address.
Item will be shipped within 2-5 business days after we get the payment (some customized product may take longer )
1.We ship to worldwide by China post air mail or HongKong Post with tracking number.(for order less than $5,we will send by ec-firstclass.org can not been track)
4.Most airmail takes 7-25 working days from the date of shipment.
5.We will ship items as a gift and declare less try to avoid import tax.
6.We do not responsible for any customs charges or import tax.
7.We will ship to the USA by ePacket,it often takes about 7 to 12 working days.
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We provide 1 year warranty. If the item is defective, please notify us within 3 days of delivery.
All items must be returned in their original condition, in order to qualify for a refund or exchange of goods.
But shipping fee and insurance is not refundable.
Items returned after 7 days of delivery are only eligible for repair.
The buyer is responsible for all shipping costs incurred.
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|Shipping Company||Shipping Cost||Estimated Delivery Time|
|3 - 7 days|
|3 - 7 days|
|5 - 14 days|
|Post Air Mail||Free Shipping||15 - 45 days|
|Return Policy||If the product you receive is not as described or low quality, the seller promises that you may return it before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe) and receive a full refund. The return shipping fee will be paid by you. Or, you can choose to keep the product and agree the refund amount directly with the seller.
N.B.: If the seller provides the "Longer Protection" service on this product, you may ask for refund up to 15 days after order completion.
|Seller Service||On-time DeliveryIf you do not receive your purchase within 60 days, you can ask for a full refund before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe).|
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