My first one gave up the ghost (yielding a somewhat spectacular final abstract art interpretation of my design), and I'm finally getting around to setting up a new 2-nozzle one, which eliminates the problem you are having with the material switching. Sadly, it is not so lego-like in its assembly, so I'm having to do some extra work, and whoever packaged it overheated the plastic wrap in some places.
I've made a few Useful Things with mine, including a replacement piece for a folding table for my girlfriend, and some soap dishes that have gone over very well.
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My first one gave up the ghost (yielding a somewhat spectacular final abstract art interpretation of my design), and I'm finally getting around to setting up a new 2-nozzle one, which eliminates the problem you are having with the material switching. Sadly, it is not so lego-like in its assembly, so I'm having to do some extra work, and whoever packaged it overheated the plastic wrap in some places.
I've made a few Useful Things with mine, including a replacement piece for a folding table for my girlfriend, and some soap dishes that have gone over very well.