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CrunchLabs

Engineering and design education disguised as play, featuring creative build challenges and mechanical prototyping designed to teach core STEM concepts.

Because the world has enough bad news
: Mark Rober Spent $3 Million to Launch Crunch Labs and Turned a Profit in Six Months

October 6, 2026

Mark Rober Spent $3 Million to Launch Crunch Labs and Turned a Profit in Six Months

Mark Rober launched Crunch Labs with $3 million of his own money and hit positive

Editorial Desk

CrunchLabs: CrunchLabs Built a Fully-Automated Human Car Wash and Only Kids Could Ride It

September 26, 2026

CrunchLabs Built a Fully-Automated Human Car Wash and Only Kids Could Ride It

CrunchLabs built a fully-automated human car wash powered by a conveyor belt, eight pressurized nozzles,

Editorial Desk

CrunchLabs: CrunchLabs Built a Home Hydraulic Press That Crushes With 60 Tons of Force, Then Let Three Teams Loose on It

September 19, 2026

CrunchLabs Built a Home Hydraulic Press That Crushes With 60 Tons of Force, Then Let Three Teams Loose on It

Mark Rober's Mega Crunchinator pushes 60 tons of force, and three competing CrunchLabs teams spent

Editorial Desk

CrunchLabs: Engineers Hid Inside the CrunchLabs Warehouse and Nearly Beat Their Boss at His Own Game

September 5, 2026

Engineers Hid Inside the CrunchLabs Warehouse and Nearly Beat Their Boss at His Own Game

Nine CrunchLabs product designers hid inside their own warehouse and nearly outmaneuvered their boss with

Editorial Desk

CrunchLabs: Mark Rober Built a Nerf Artillery Vehicle and Zach King Still Lost

September 3, 2026

Mark Rober Built a Nerf Artillery Vehicle and Zach King Still Lost

Mark Rober built a rapid-fire Nerf artillery vehicle, invited Zach King and a kid who

Editorial Desk

Mark Rober: Phat Gus Wins the Walnut Cup After a Doping Scandal Rocks the Backyard Summer Games

August 25, 2026

Backyard Squirrel Maze 3.0 | Phat Gus Wins the Walnut Cup After a Doping Scandal Rocks the Backyard Summer Games

Mark Rober's third and final backyard squirrel competition ended in a championship reversal after a

Editorial Desk

Mark Rober: Mark Rober Built a 9-Part Squirrel Obstacle Course to Guard a Walnut Vault and the Squirrels Won

August 25, 2026

Backyard Squirrel Maze 2.0 | Mark Rober Built a 9-Part Squirrel Obstacle Course to Guard a Walnut Vault and the Squirrels Won

Mark Rober spent two months engineering a nine-part squirrel obstacle course to protect a walnut

Editorial Desk

Mark Rober: Mark Rober Built an 8-Part Ninja Warrior Course for the Squirrels Raiding His Bird Feeder

August 25, 2026

Backyard Squirrel Maze 1.0 | Mark Rober Built an 8-Part Ninja Warrior Course for the Squirrels Raiding His Bird Feeder

Mark Rober built an eight-obstacle Ninja Warrior course in his backyard after squirrels destroyed three

Editorial Desk

Mark Rober: Mark Rober Traveled 4,000 Miles to the Equator to Expose a Tourist Scam (And Tested 6 Other Physics Puzzles Along the Way)

August 16, 2026

Mark Rober Traveled 4,000 Miles to the Equator to Expose a Tourist Scam (And Tested 6 Other Physics Puzzles Along the Way)

Mark Rober traveled 4,000 miles to Ecuador to investigate whether a popular tourist water-drain demonstration

Editorial Desk

Mark Rober: Mark Rober's Rock Paper Scissors Robot Has a 0% Loss Rate and a $10,000 Bounty for Anyone Who Can Beat It

August 16, 2026

Mark Rober’s Rock Paper Scissors Robot Has a 0% Loss Rate and a $10,000 Bounty for Anyone Who Can Beat It

Mark Rober built a rock paper scissors robot that reads finger position 100 times per

Editorial Desk

Mark Rober: Mark Rober Built a Secret Robot Inside His Robot to Beat Dude Perfect at Their Own Game

August 8, 2026

Mark Rober Built a Secret Robot Inside His Robot to Beat Dude Perfect at Their Own Game

Mark Rober brought one robot to a five-on-one battle against Dude Perfect, and hidden inside

Editorial Desk

CrunchLabs: Science Bob Reveals 5 Magic Tricks You Can Actually Do at Home

July 27, 2026

Science Bob Reveals 5 Magic Tricks You Can Actually Do at Home

Science Bob Fluke Felder, a former middle school science teacher turned magician, walked through five

Editorial Desk