Abstract: According to some aspects, an additive fabrication device is provided configured to form layers of material on a build platform, each layer of material being formed so as to contact a container in addition to the build platform and/or a previously formed layer of material. The additive fabrication device may comprise a container and a wiper, wherein the wiper comprises a wiper arm and a wiper blade coupled to said wiper arm using a pivoting coupling.

Abstract: In a heterogeneous network environment comprising a plurality of first wireless networks and a second wireless network, said plurality of first wireless network utilizing a first wireless communication protocol and said second wireless network utilizing a second wireless communication protocol different to said first, a method of gathering data from said plurality of first wireless networks, which method comprises the steps of: electronically extracting a network identifier from at least one of said first wireless networks; transmitting said network identifier to a remote server; and said remote server compiling a database of network identifiers received from said plurality of first wireless networks, storing of said database facilitating inter-working between one or more of said plurality of first wireless networks and said second wireless network.