Uploaded June 2026 | Updated September 2026, 1 week ago
During his week off between school and summer camp, 12-year-old Henry built a K'nex roller coaster up and down our basement staircase. The lift hill is around 12 feet long, takes the coaster up 9 feet and drops around 8.7 feet, yet the coaster is never more than about 16 inches directly above the ground. Uses one Screamin' Serpent set and one Rippin' Rockit set (plus more for the supports).
Get your own K'NEX roller coaster set and see what you can build around your home: amzn.to/4wztfwn
#knex #rollercoaster
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During his week off between school and summer camp, 12-year-old Henry built a K'nex roller coaster up and down our basement staircase. The lift hill is around 12 feet long, takes the coaster up 9 feet and drops around 8.7 feet, yet the coaster is never more than about 16 inches directly above the ground. Uses one Screamin' Serpent set and one Rippin' Rockit set (plus more for the supports).
Get your own K'NEX roller coaster set and see what you can build around your home: amzn.to/4wztfwn
#knex #rollercoaster
Want to connect with us? Hit us up on social media:
Instagram: instagram.com/coaster101
Facebook: facebook.com/Coaster101
Twitter: https://x.com/Coaster101/
And check out our sweet merch: coaster101.com/merch
Want to work with us? coaster101.com/join
Disclosure: Some of our videos contain affiliate links. This means we may receive a small commission if you click on a link and make a purchase, at NO extra cost to you.
