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Micro K'nex Killer Kobra roller coaster Update 1 Answered

Hooray!!! Update!!!! Thanks to the people of instructables I have been able to make progress on my micro knex killer kobra. Thanks to your votes I have added a Zero-G roll. Apart from that I have added a cutback and a small hill. Now I have two more options for you to choose from. The last two pictures show what each one is.

Option 1: Barrel roll
Option 2: Helix

Just so you know right after one of these elements I will add a propulsion system that will hopefully give me enough speed to add a few more elements. The first element to get 4 votes wins.


Sorry there won't be. But after i finish this one i will make a tube supported coaster that I will make instructions of called slashing bear  

when will "when you finish" be?

Don't worry JM I'm finishing it this afternoon.

make a video when you finish please

Don't worry I will. Hopefully You tube will finish uploading it. My last two videos stopped uploading right at the end. I wa really annoyed.

How about a half barrel roll into a backwards helix, where you are facing outside instead of inside?

Sorry but I already built the helix.


8 years ago


Check back for anther Update soon

Lookin' good!


that helix should be cool!

Looks great!

I vote for the helix, because the barrel roll looks too much like the Zero-G roll, and the elements should have variety. :-)