I have a perfect cone shape, which is stored in a the tip_6.stl. I try to use the function generateMesh(). I found that no matter how do I choose the parameter Hmax and Hmin, It always shows me something like the following: Meshing failed with a Hmax of 0.100000 and a Hmin of 0.050000, adjusting Hmax and Hmin may resolve the problem. I found that as soon as I replace the tip point with a shpere, mesh just works fine. Seems like the function generateMesh cannot generate any sharp feature. Is there any way to get around this problem?