Problems with extruded curve and solidify modifier I'm relatively new to blender and am having issues with a curve that has a solidify modifier applied to it. I'm trying to 3d print cookie cutters and need to take custom curves, extrude them to a specific height, then give them a thickness, like 1-2mm. I've configured blender to use mm as my unit of measurement and everything seems to be okay. However, when curves are too sharp, as shown, they get these weird overlaps which end up becoming holes in my print. 

Image of curve  with weird artifacts:
https://cl.ly/a5cf7eadb762

My solidify settings: 
https://cl.ly/b12de88a42ab

The geometry settings: 
https://cl.ly/ad8a526e4f17

What it looks like when I bring the exported .stl into tinkercad (for example): https://cl.ly/c4cf484e2872

What am I doing wrong here?
It seems logic that if your angle is very sharp, your Solidify modifier may create a problem, because the thickness profile can easily overlap itself. So I guess what you have to do is either change the Thickness to a negative value (in your case), or convert your curve to mesh and bring some corrections manually.