Test your printer.

Test your slicer settings skills.

Test your patience.

Test your sanity.

My wife wanted a sleeve to go over a regular Ball jar to use it as a flower vase.  So I said "sure, I can make something up".  I made this up in FreeCAD in a few minutes. It didn't seem like it would be that hard to print.  IT WAS!!!

This is a simple, but almost impossible, model to print.  It will print, but getting it to come out nice is the real challenge.  It has very thin lines and steep overhangs.  Its only about 25 grams.  That is if you only print it once.  I waste so much time and filament on chasing the perfect print.  If you print stuff just to see if it even can be printed then this is the model for you.  If you are a normal person that doesn't try to punish their printer or themselves this is probably not the model for you.

Print settings:

I tried a lot of things to get this to work.  Most things didn't.  In the end the best results I got were printing cold and slow with 0.16 layer height.  200C and 50mm/s  No supports you cheaters.  This was MatterHackers Build PLA printed on the Core One. 

For anyone that does try this I would love to see what settings you used that worked or even the ones that didn't.  Upload you failed makes along with or instead of successful ones.  I've included some better ones and some less better ones.  Look close at the pictures to see if you can do better or worse.  I didn't try scaling it up or down but I would be curious to see how either compares to the original size.