K'nex Krazy

A workplace rollercoaster that delivered packet ice-creams from the 1s't floor (where the freezer was) to the ground floor (where a lu...

Made in our office for Chinese New Year 2025 - The year of the snake. 8ft high, 5000+ pieces and powered by a desk fan. See also our 8ft Ch...

For Australia Day, my office desk buddy and I converted the fantastical 8ft motorized Christmas K'nex+Lego Ferris wheel, which before th...

I was asked to create a K'nex roller coaster for a youth group's hot dog fundraising stand, and this is what I built them. It fasci...

 We added a skill shot, and three other extra ball jackpots to hit to the K'nex Arcade Pinball set.

  During COVID, we had a workplace Zoom staff meeting with a “Crazy Mask” competition... I won!! 🙌

Possibly a world record for the most consecutive loops in a K'nex 'launch' roller coaster. (the launch is at the end.....haha :)...

Yes, you would die on this coaster in real life.... It has a forwards and backwards loop, both from the upside down position, and two corner...

  Loosely based on Disney California Adventure's Goofy's Sky School / (previously Mulholland Madness). I built the frame first and t...

Just testing how a 'windmill' would spin underwater over some vertical jets in the floor of the pool.

Stats: Ball Towers: 6 meters tall (almost 20 feet) 4300 pieces Cross-beam: 2.5 meters wide (over 8 feet) 1300 pieces Stairs: 33 st...

  Has a user controlled crane and auto lift ball tower 6 'automatic' tracks: Vortex Ladder drum Spiral seesaw Looper Roller...

So, I saw my daughter's plastic expanding ball (Hoberman Sphere) and pondered if I cold make one. I gave it a crack over a few nights, ...

I wondered if a rotating weight would be enough to make a swing swing all by its self, just like humans can. Not bad. Will try a 'proper...

 A little ball contraption built in a few minutes while waiting for lunch.

  The ultimate in Teddy Bear travel - by KnexKrazy.com

With a little less friction, and breaking the laws of physics, this knex contraption would actually spin forever without the motor running.....

After building the regular Ferris Wheel from instructions, and modifying for a school project (turning it into a wind powered wool winder) I...

I started building a Double Decker Screamin Serpent  roller coaster, but had to move house before it was completed. This is as far as it got...