Both active and passive cooling methods are widely utilized for 3D printing plastic-based products. However, comparisons between the two suggest that active cooling will most likely lead to more accurate and precise creation of objects. Users of ABS noted that even during the creation of delicate structures like spheres, active cooling reduced the formation of warps and serious distortion on the surface. Read more at 3DPrint.com: https://3dprint.com/157341/active-and-passive-cooling/