Final answer:
There are several ways to fix the problem of a 3D print not sticking to the build plate, including cleaning the plate with isopropyl alcohol, adjusting the build plate leveling, and using a different type of filament.
Step-by-step explanation:
If a 3D print won't stick to the build plate, there are several ways to try to fix the problem. One way is to clean the build plate with isopropyl alcohol. This removes any grease, oils, or residue from the plate, allowing for better adhesion. Another option is to adjust the build plate leveling. If the plate is not leveled correctly, it can affect the print's adherence. Lastly, you can use a different type of filament. Some filaments have better adhesion properties than others, so switching to a different filament may help solve the problem.