Extended ball chute for Lego Mindstorms

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This is an extended ball chute for Lego Mindstorms ball-shooting robots. It has a female cross attachment at the bottom for attaching to the launcher or a stock chute. The lower 8mm of it are just for support, and you should be able to snap it off with pliers--or just cut. I recommend you first print the attachmenttest.stl file not to waste filament to make sure the tolerances on the female cross attachment match your printer. If they don't, then use the Customizer to adjust the tolerances. You can also customize the height by changing the number of sections. If balls get stuck inside, run some rolled up sandpaper through the tube. You can print extra balls with this: http://www.thingiverse.com/thing:2303422