This is my second roller coaster. Also probably my last. I am going to start ball machines now.This roller coaster has a loop that is very sturdy. Let me know if you want more pictures of the loop. It is not hard to build though. I also might make an ible on how to make a roller coaster, but that won't be for a while.
Thanks for looking at this.
<p>Looks good! </p>

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More by hi1:How to make a knex roller coaster An idea for a knex ball machine lift Loop. A knex roller coaster 
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