fridge marble run

I proudly present to you my modular marble run that goes on your fridge! this marble run is easy to use, low filament usage, and best of all, modular. It is compatible with averaged sized marbles (not those big ones the size of your eyeball)!below I will show you what the pieces do and how to use them. start (it is in the name) straight. A rail for the marble to roll down slide rail. A fun slide for the marblestairs. It makes a nice sound.the wheel rotates when the marble hits it and it can slow the marbles downplinko. It also makes a nice sound.stopper. This stops the marble from going over the edge and puts it on the next track.the switch changes the direction of the marblethe pole catches the marble and by rotating gently places it on the next track