It looks like it has been done for a fair bit: http://jimlund.org/build-to-spec/Setting%20Up%20Libcutter%20-%20Cricut%20Hacking%20Wiki.html http://jimlund.org/

It looks like it has been done for a fair bit: http://jimlund.org/build-to-spec/Setting%20Up%20Libcutter%20-%20Cricut%20Hacking%20Wiki.html http://jimlund.org/build-to-spec/Setting%20Up%20Libcutter%20... Cricut's USB exposes itself as a serial USB port, and it looks like the library is there to make SVGs cut for it. EDIT: It looks like there is some sort of encryption between the host and Cricut as well? So Cricut makes it intentionally unfriendly to make it work with thir party vendors.