SKU: 88642263284
laser cut gear generator

laser cut gear generator STEM LAB - Mechanical Random Number Generator Model Kit – UGears US

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Description

laser cut gear generator STEM LAB - Mechanical Random Number Generator Model Kit – UGears USHas your magic 8 ball been failing you? If shaking a ball of liquid isn't giving you the answers to your most critical yes or no questions, the UGears STEM LAB Random Generator might be the problem solving magic you've been looking for. You might have questions about how to build it, but once you've followed the step by step construction manual, any other simple question can be solved with the simple push of a button. Designed with smooth gears and

 

Has your magic 8 ball been failing you? If shaking a ball of liquid isn't giving you the answers to your most critical yes or no questions, the UGears STEM LAB Random Generator might be the problem-solving magic you've been looking for. You might have questions about how to build it, but once you've followed the step-by-step construction manual, any other simple question can be solved with the simple push of a button. Designed with smooth gears and completely random results, this 3D model helps you make your decisions by scientific randomness instead of magical randomness.

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Careful physics has gone into the design of each Random Generator. Each piece is made from carefully laser-cut sustainably-sourced plywood that comes with a fresh real-wood scent. Pop out the pieces and gently sand or wax interlocking parts to get just the right fit in case of small deviations. By following the included paper manual or an easy online video guide, you can have your Random Generator ready to answer your questions within about two hours. There are six possible answers including "yes," "try again," "later" and the ever-reliable "do it." There is a precise 1/6th chance that any one of these answers comes out on top thanks to the careful symmetry of an internal octahedron. The eco-friendly materials are refreshing after decades of plastic models. The model is almost entirely made of wood with just a metal ball and a rubber band to help power the drive gear. It comes with 160 parts and is recommended for anyone age eight and up, though younger children might enjoy working on this project with a bit of adult assistance.

There are a number of scientific elements in this mechanical generator model, making a great science fair project or activity for brainy young scientists and older explorers. The mechanism includes ways to explore weight and balance with an internal metal ball that drives the random chances. A button and clutch work with potential energy to set the mechanism spinning and a drive wheel keeps the thrust evenly distributed to avoid predictable answers. Scientific minds can also explore concepts including a three-axle gear, internal octahedron, overrunning clutch, and basic geometry. Although not every kid is as excited about STEM projects, giving your young ones some base examples is a great way to expand growing minds to the possible applications of math and science in real-world situations.

Even though this kit is an ideal IQ game for kids and teens, anyone can enjoy the simple pleasure of solving these simple puzzles and physics experiments. UGears is always available to help out in case of lost or broken pieces, ensuring that your project is enjoyable and beautiful even if it takes some time to come together.

 

Specifications:
Model Size: 6.8 x 4.8 x 5.2 in
Package size: 8.1 x 7.4 x 2.5 in
Number of parts: 160
Level: Easy
Assembly Time: 2 hours
Recommended Age: 8+
Kit weight: 1.17 lbs
Manufacturer: UGears 

 FAQs

Part Replacement

PDF Instructions

Assembly Videos


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SKU: 88642263284

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4.4 ★★★★★
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Mena
Natrona Heights, US
★★★★★ 5
Good size for my pug!
Color: Dentachew 3 Pk
I love how it’s a good size for my pug it is easy for her to play around with. I had stuffed animals for her to play around with but it looked so silly to watch her play with something that is 10 times as big as her 😂. I had to buy her these toys and she seemed so happy when she first got them. It was so funny and interesting that she had to chew all three toys and decide which one she liked. At first she decided to play with the rope toy and she liked the rope toy, then she got curious with the rubber toys. She has decided that the rubber toys are her favorite and I’ve tried to engage with playing with her with the rope toy. She gets more interactive with the rubber toys! She also looked so relieved while chewing them so that’s a plus!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 16, 2026
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Verified Purchase
Lindap
Massapequa, US
★★★★★ 4
Good for Teething puppies
Color: Teething Stick
After getting my fingers chewed and bitten by my new foster - 8 week old Yorkie , I was desperate to find good teething toys. Fortunately this one arrived quickly. Turned out to be very good for teething puppies! Charlie loves this cooling stick. Once it’s frozen, the cold really seems to soothe his sore gums. The icy part doesn’t stay frozen for long, but it works so well that I bought a second one to keep ready in the freezer while he’s working on the first. Even after it warmed up, he still enjoyed chewing on the soft stuffed part and the tentacles. The product card says not to use it as a chew toy, so supervision is a must, but it held up just fine so far. Overall, this has been a big help during the teething phase — short-lived when frozen, but very effective while it lasts! And worth every penny to save my fingers from being a chew toy.
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Reviewed in the United States on October 7, 2025
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Verified Purchase
Amanda Rogers
Pawtucket, US
★★★★★ 5
From Puppy Teething to Adult Favorite – 7 Years Later
Color: Teething Stick, Color: Teething Stick
This has been one of the best toys I’ve ever bought! My dog has loved the Pupstages Cool Teething Stick since she was a tiny puppy, and now at 7 years old, it’s still one of her absolute favorites. It’s been amazing for soothing teething when she was little, and now she still enjoys chewing on it and carrying it around. It’s held up surprisingly well over the years, especially considering how much use it’s gotten. I also love that you can cool it for extra relief—it really helped during those puppy stages. If you’re looking for a toy that lasts and actually becomes a long-term favorite, this is definitely it. Highly recommend for both puppies and even older dogs who still love a good chew! 🐶
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Reviewed in the United States on May 1, 2026
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Stefne
Alexandria, US
★★★★★ 5
Great for little dogs that like to chew
Color: Hedgehog
Great for my 10 lb chihuahua that loves to chew! Keeps his teeth clean!
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Reviewed in the United States on June 7, 2026
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pgm
Louisville, US
★★★★★ 5
Cute Fun Puppies Love it Immediately Good Price
Color: Teething Stick
This little top was a huge success for my active Multipoo! She started playing with it immediately. I think it will become her favorite toy! It isn't expensive. It is well made and very cute!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 7, 2026

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