MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.

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I'm on an ender 3 pro, with a silicon sock and stock hot end . I was using the most recent 5015 single version of the duct. I found a few little things after I reprinted. The first was the heater cartridge was not in the hot end deep enough. It still was getting very hot on that side still. I printed out a mold and cast a new sock to cover the wired end of the heater. I also reprinted the duct in abs. Now I can crank up the printer to 250c without the duct getting soft on that end.