Superspeed, good communication, perfect price, but still small deviations from our file. it feels a little less the output print shrinks about half a millimeter every time, we already ordered the second time. it has 4.5 mm apparently but our 3 mm thick rings do barely fit inside. There’s no space from the outer side of our ring to the 3D printed form, even though from the file it should has at least 1 mm. overall very happy and what order again, what is the knowledge of the above we just calculate this in
D3D Printing Service 
