Tachometer educational mechanical model kit
Assemble the Tachometer and discover how it works.
Learn how the Tachometer works A tachometer is a device designed to measure the rotational speed of various parts in engines and other mechanisms. It calculates revolutions per minute (RPM). The tachometer also measures and monitors load limits, in order to decrease or increase RPM so that the engine or mechanism runs within its optimal parameters. Who invented the Tachometer, and when? The tachometer was invented by the German engineer Dietrich Uhlhorn in 1817. His invention was a special device that measured centrifugal force. From 1840 on, this device has been used in railway locomotives, and later in cars and all manner of vehicular transport. Use The tachometer is used in mechanisms where it is necessary to accurately track RPM to avoid the negative consequences of overloads. Savvy motorists use tachometers to know when to shift gears (in cars with manual transmissions) and to control the load on the engine, thereby increasing the operating life of their vehicles. What the Tachometer consists of and how it works The Tachometer 3D puzzle from UGEARS' STEM Lab collection is a fully operational DIY wooden model of a tachometer, ready for you to assemble. When the handle is rotated, movement is transmitted through a reducer, increasing the RPM and displacing twin weights in the centrifugal unit. The higher the RPM, the more centrifugal force separates the weights, shifting a movable axle with flywheel. A pointer mechanism (dial) is fixed to the axle; the more the axle shifts (higher RPM), the more the dial arrow deflects, indicating higher speed rotation. The Tachometer mechanism consists of:
Connect the Tachometer to the Variator, creating a new mechanism The Variator-Tachometer system demonstrates the direct relationship between the transmission ratio of a gearbox, and rotational speed. When the handle of the Variator is rotated, the movement is transmitted through the reducer to the cone-shaped driving pulley. The rotation of the first cone is then transmitted through the belt to the other cone, which is the driven pulley. When the pedal attached to the housing is pressed, it shifts the fork holding the belt, thereby changing the rotational speed of the driven pulley. When the Tachometer is attached to the Variator, the changing rotational speed of the driven pulley of the Variator is transmitted to the Tachometer's reducer. This in turn will increase or decrease the centrifugal force on the weights, shifting the axle with flywheel. Shifting the axle deflects the indicator on the dial toward a higher or lower value. In this way, changes to the transmission ratio in the Variator will be seen to increase or decrease the RPM of the attached Tachometer. The Variator-Tachometer mechanism consists of:
Ugears STEM puzzles are designed to suit different age groups with a special focus on learning component. The assembly of the model will be interesting and won’t take much time. STEM Lab Model kits come with all you need in a box.Just like the rest of Ugears wooden model kits, putting STEM Lab models together is fun and comprehensive: everything you need to build, learn, and discover comes in a box. There you will find:
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At Remarkable Gifts LLC (UGEARS Canada), we stand behind each and every one of our models and ensure your purchase with our 30-days guarantee return policy. If you are not completely satisfied with your item, simply return it for a full return/refund.
Items can be returned within 30 days after the date of a purchase either for a full refund of an original purchase of an item or an exchange for a product of an equal value.
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PACKAGE YOUR RETURN
Please, package your return purchased item along with all original accompanying materials that were shipped with the item into a securely sealed shipping box. Mail all return items along with receipts/proof of purchase to:
Remarkable Gifts LLC, 3100 Caravelle Dr, Mississauga, Ontario, L4V 1K9 Canada.
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We will inspect your returned item and make a decision about return/refund eligibility within 2-4 business days.
Once an item is accepted for return, Remarkable Gifts LLC will issue a full refund, exchange, or credit within 10-20 business days.
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In case you receive a damaged or a wrong product, we cover the return shipping fees.
At Remarkable Gifts LLC we are constantly reinventing and reimagining our models. If you have feedback you would like to share with us, please contact us info@ugears-models.ca and share your thoughts! We appreciate your suggestions and are grateful for feedback. Your opinion matters when we are reviewing our existing models and are in a process of developing new ones.
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We will notify you when we receive your returned item. Please allow 2-4 business days as we inspect returned an item and make a decision whether or not an item is eligible for a full refund/replacement.
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If your refund has not been issued within the indicated number of days, please check your payment account. If the refund has not been applied to your payment account contact your bank as it may take additional time for your refund to reflect on your account. There is often a processing delay before refunds are posted.
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Only regular priced items are eligible for replacement/refund.
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The only items eligible for replacement/refund are the ones that were received defective or damaged.
If you need to exchange a defective/damaged item, contact us via the e-mail: info@ugears-models.ca
We review your claim and notify you whether or not your item is eligible for replacement. You then should mail your item back to us along with an original receipt/proof of purchase to:
Remarkable Gifts LLC, 3100 Caravelle Dr, Mississauga, Ontario, L4V 1K9 Canada.
