Hello everyone! I need help with my Robo, I started working on putting together a little laser engraver which uses DVD drive mechanisms to move object and laser around. Very cool project!http://www.thingiverse.com/thing:902826 . After printing all parts out it turns out that none of the parts fit together. But that's only in my case, it works great for everyone else. I've read up on it a little bit and it has something to do with the shell thickness and XY ratio or whatever. I spent hours filing the parts to get them to fit and I thought that instead of dealing with the problem it's time to solve it! Did anyone of you encounter such problem? It looks like everything relating to Z the axis is alright, but the wall thickness is larger that I want it to be. Distances between holes and etc. are alright, only the walls are too thick. They're nice and smooth after z rod upgrade and extruder calibration.