I was disappointed also, but when my prints started coming out of the machine, that all melted away. My own prints of the extruder parts are beautiful (if I do say so myself). So, I was thinking for a while, why weren't the ones in my kit this nice? Then I realized that I spent 6 hours printing all my pieces for one extruder. That isn't going to work for MakerFarm which has to turn out a bunch of these a week. In a way, t doesn't make sense for MakerFarm to go crazy with making perfect pieces as the ones I received with my kit that I was so frustrated with worked great after I cleaned them up.