I DL'd and installed Cura for my Win 7 64bit, installs fine but when I open it to use it I get this error and can't close or even shft/alt/del. I have to close down the PC and restart. Anyone else have this problem?
that preview looks normal, on the right side of the screen is a bar you need to drag the top of that bar down to view the lower layers as right now you are viewing the last layer (layer 349) so that is where the preview play button will play from. As you drag the right side bar down from the top you will see the layers below and can preview them.
At least each one is unique! 🙂 You could sell them as art......to pay for the filament. 😉
Have you tried using supports, or are you avoiding that in case it impacts on the final quality? Unfortunately any supports that reach to the top are going to add a lot of material and time.