https://forum.prusa3d.com/forum/original-prusa-i3-mk3s-mk3-prusa-i3-kit-archive/settings-preheat-cool-down/ Prusa3D Forum Discussion Board en-US Sat, 09 May 2026 13:29:57 +0000 wpForo 60 https://forum.prusa3d.com/forum/original-prusa-i3-mk3s-mk3-prusa-i3-kit-archive/settings-preheat-cool-down/#post-6029 Wed, 20 Apr 2016 14:03:42 +0000 Steve

At the end of a print, the heaters should be turned off automatically, so you only need to use the "cool down" option if that doesn't happen or if you have manually heated the extruder.

You should not turn off the printer until the extruder fan has stopped running (extruder < 50 degrees).

Peter]]> Prusa i3 kit (Archive) PJR https://forum.prusa3d.com/forum/original-prusa-i3-mk3s-mk3-prusa-i3-kit-archive/settings-preheat-cool-down/#post-6029 https://forum.prusa3d.com/forum/original-prusa-i3-mk3s-mk3-prusa-i3-kit-archive/settings-preheat-cool-down/#post-6028 Wed, 20 Apr 2016 13:55:03 +0000 Hi All,

When I've finished printing do i need to select the Cool Down option and wait for it to cool down before turning off the power, or can I just power off?

Cheers
Steve]]> Prusa i3 kit (Archive) steve.a https://forum.prusa3d.com/forum/original-prusa-i3-mk3s-mk3-prusa-i3-kit-archive/settings-preheat-cool-down/#post-6028