Why is having a heated bed a nice feature on a 3d printer?

Related questions

1. What is hot end?
2. How does a Bowden extruder work?
3. Is TPU filament toxic?
4. How fast does a 3d printer print?
5. Which is better abs or plastic?
6. Is PLA waterproof?
7. What is a 3d extruder?
8. What does the hot end of a 3d printer do?
9. Does PLA degrade over time?
10. What is TPU plastic?

Tags

1. #preventing
2. #plastic
3. #edges
4. #quality
5. #compared
6. #warping
7. #inside
8. #cooling
9. #because
10. #keeping
11. #caused
12. #print
13. #condition
14. #improve
15. #uneven
16. #dramatically
17. #extruded
18. #common