Assemble your very own functional marble roller-coaster with this Mechanical Gears Waterwheel kit from Robotime!

Lock together the pre-cut, numbered plywood pieces as you follow the illustrated instructions and press them from the flat-packed backing.

Once your model is complete, you can enjoy a fully functioning and visually appealing desktop marble run for your enjoyment!

Crank the handle to fire up the gears and watch your waterwheel carry the marbles up to the top, to release them back down the track!

Your Robotime Mechanical Gears Waterwheel kit includes: 238 pieces including 5 x pre-cut wood sheets, wood glue, sandpaper, 10 metal marbles and all the spacers, nuts and shafts required.

Estimated build time: 3-5 hours (rated 4 out of 5 for difficulty).

Recommended for ages 14 and up.

Assembled dimensions: 25.4cm x 23.2cm x 16.5cm

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Robotime Mechanical Gears Waterwheel Reviews

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(5) Patrice Anderson - Verified Customer

Four family members will be thrilled to receive their unique 3D Puzzle boxes. Before buying, I reviewed the items on Coolthings and other online sources. The prices were reasonable, and I was purchasing from an established Australian business, which is important to me....

(5) Eileen - Verified Customer

Well done Cool Things team. I recently placed 2 orders of various items for Christmas presents. Everything ordered arrived in a timely fashion and was well packed and nothing missing. I loved the UGears freebies. Great work. ...

(5) Doris Warren - Verified Customer

I’m so glad I stumbled across your website when looking for gifts for my very smart almost 14 years old grandson.I found so many things to choose from.He’s only in year 7 but does year 11 /12 maths in their classroom.everything came well packaged and delivered so quickly as well, Thank you so much for your excellent service,now that I’ve found you ...

(5) K Perry - Verified Customer

Very pleased with whole transaction. Reasonable price, well packaged, item as described and arrived as indicated....

(5) Sharon Howe - Verified Customer

I recently purchased a number of items for giving at Christmas. It is premature to ask me to review them at this stage! Last December I furnished you with an enthusiastic review for the zip string laser, which I note is still promoting the product. It was done with goodwill and authenticity (but did not, alas, impress sufficiently to earn the $50 v...

(5) Fran Brownhalls - Verified Customer

I recently purchased from Cool Things for the first time. My goods arrived extremely well packaged, unusual in this day and age, and very quickly. Communication was great and goods are exactly as described. Will definitely visit this shop online again....

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In a world where good service, speedy delivery and customer satisfaction often appear to be too hard, it has been a pleasure to do business with 'Coolthings'. I wouldn't hesitate to purchase from this company again. Keep up this excellent service....

(5) Galen - Verified Customer

As a grandmother of 7, (eldest a girl aged 9 then 6 boys aged from 6 to 1), I am always looking for new, innovative and stimulating gifts for them all and " Cool Things" did not disappoint. Christmas is especially challenging as there are 3 birthdays in December as well and then another in January so there are many gifts to buy. I was luc...