About this 3D model

Designed as a replacement for Surround Nozzle designed previously that didn't perform much better than stock, this one cools the rear much better overcoming stock nozzle's deficiency. Benchy image note: Although the surface looks no better, the stock aft cooled Benchy is noticeably bumpy while Amphi print was smooth but discolored. Benefits: fits MK2 and MK2s fits with 40mm Noctua upgrade brake fan using my Extruder Fan 40mm Adapter high flow ducting fore and aft hotend peek slot Drawbacks: This part is a bit heavy being at 23g, adding fan and hardware is 53g covers much of printing parts due to large ducting observed more wear and tear on radial fan bearings due to odd mount angle, get a good one Hardware used: 3 washers (optional) x2 20mm M3 socket screws for fan x2 8mm M3 socket screws for mounting