MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.
Much better. The main opening is still too small though. Take a look at mine and see as mine are directly related to a real model. Basically the opening comes all most to the edge with not much meat left in the narrowest part. If you look at a real fan that is how they are made too and since we are squeezing air from one size to a smaller size we need as little of a restriction as we can get (though by its very nature there will be a ton of restriction just don't need to add more).