CubicFun
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$161.99
UGEARS STEM Lab Model Kit - Creative 3D Wooden Puzzles for Adults, Teens and Children - DIY Mechanical Science Kit for Self Assembly - Educational and Engineering 3D Puzzles with App (Arithmetic kit)
★★★★★
$161.99
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About this item
- 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
- 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
- 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
- Assemble the Tachometer and discover how it works. The model kit comes with a QR-code to the study guide about the mechanism, the principal of its working, the main characteristics, formulas. It also includes interesting assignments
- Dive into augmented reality and look at how the Tachometer works. Interact with the model via a special AR application from Ugears. Point your tablet or mobile phone at a fully assembled STEM-lab model and the app will show you various applications of the mechanism you’ve just built
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What customers say about Bigamart
10 Trustpilot reviews total, with 2 shown at a time.
Trustpilot
★★★★★
Excellent
4.5 average rating
S
Sigalit
🇮🇱 · January 2026
★★★★★
I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.
V
Verified buyer
🇦🇺 · November 2025
★★★★★
The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.
Showing 1–2 of 10 reviews
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