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.
Which printer and hot-end are you using? and which version of cooling duct are/were you using with the Hero Me? Do you have a silicone sock on your hot-end or just the paper and tape? If I know this info, I may be able to help. Silicone socks are the way to go. There are updates coming in the next couple weeks that will improve things greatly.