Ender_3_Vent_Ring_better

Here is an effective cooling ring for creality ender 3 3d printer. After trying Ender 3 Vent Ring 2, which is a nice object, but I find it ineffective, I designed my own system. it works very well we can feel the flow of area passing, well distributed around the periphery of the nozzle. Easy to print and without support, just glue the three pieces and it's ready. This object prints in about 1 hour.