Having trouble finishing some prints.

When I print a object that comes to a sharp point it melts the point. The rest of the print is fine. Print example is the point of a rocket. Thanks Phil.

This print time for the last few layers are too short, so the layers aren’t solidifying.

The easiest thing is to turn the fan to 100% for the final 5-10 layers. If the fan is already at 100%, decrease the extrusion temp to allow for quicker cool time of the extrusion. Or slow down the print or add a delay to the last few layers. Some slicers have features that can be activated to adjust for short duration layers.