A 3D printing machine includes a build plate that descends from a horizontal printing plane where each of multiple print assemblies extrudes a road cycle of thermoplastic material onto an immediately underlying road cycle of thermoplastic material that is forming a sleeve for mounting on a mandrel of a commercial printing machine. A thermoplastic polymeric print material is continuously deposited during rotation of the build plate about a build axis by a rotational actuator assembly. An axial actuator assembly translates the build plate along the build axis from a first axial position from the one or more print assemblies to a second axial position, which is disposed at a distance that is further from the one or more print assemblies than the first position. A temperature control system directs an airflow between the one or more print assemblies and the build plate.

A sleeve for mounting on a mandrel of a commercial printing machine can include distinct annular regions that are integrally formed simultaneously as a unitary structure without a forming mandrel and without any need to be adhered to one another in manufacturing steps separate from the manufacture of each annular region of the completed sleeve. A 3D printing machine and method suitable for one or more of the flexible packaging industry, the offset printing industry, the publication printing industry, the dcor printing industry, and the corrugated printing industry, employs a build plate that descends from a horizontal printing plane where each of multiple printing heads extrudes a road cycle of thermoplastic material onto the immediately underlying road cycle of the sleeve.

A sleeve for mounting on a mandrel of a commercial printing machine can include distinct annular regions that are integrally formed simultaneously as a unitary structure without a forming mandrel and without any need to be adhered to one another in manufacturing steps separate from the manufacture of each annular region of the completed sleeve. A 3D printing machine and method suitable for one or more of the flexible packaging industry, the offset printing industry, the publication printing industry, the dcor printing industry, and the corrugated printing industry, employs a build plate that descends from a horizontal printing plane where each of multiple printing heads extrudes a road cycle of thermoplastic material onto the immediately underlying road cycle of the sleeve.

An actinic radiation and/or thermally curable composition (I) for composite material comprising: (A) at least 20 wt % of compound A comprising at least 2 ethylenically unsaturated moieties and a structural moiety; (B) at least 20 wt % of compound B comprising at least 2 ethylenically unsaturated moieties and a cycloaliphatic structure or heterocyclic aliphatic structure; (C) from 1 to 40 wt % of a compound C different from compound A and B containing essentially one ethylenically unsaturated moiety and having a viscosity of less than 100 mPa.Math.s measured at 25 C., preferably below 50 mPa.Math.s. even more preferably below 25 mPa.Math.s; and (D) from 0 to 20 wt % of a compound D, comprising at least one ethylenically unsaturated moiety, and which is different from compound A, B and C; whereby the total of compound B and A have a content of from 60 to 99 wt % in view of the total content of compounds A. B, C and optionally D.

A sleeve for mounting on a mandrel of a commercial printing machine can include distinct annular regions that are integrally formed simultaneously as a unitary structure without a forming mandrel and without any need to be adhered to one another in manufacturing steps separate from the manufacture of each annular region of the completed sleeve. A 3D printing machine and method suitable for one or more of the flexible packaging industry, the offset printing industry, the publication printing industry, the dcor printing industry, and the corrugated printing industry, employs a build plate that descends from a horizontal printing plane where each of multiple printing heads extrudes a road cycle of thermoplastic material onto the immediately underlying road cycle of the sleeve.

A sleeve for mounting on a mandrel of a commercial printing machine can include distinct annular regions that are integrally formed simultaneously as a unitary structure without a forming mandrel and without any need to be adhered to one another in manufacturing steps separate from the manufacture of each annular region of the completed sleeve. A 3D printing machine and method suitable for one or more of the flexible packaging industry, the offset printing industry, the publication printing industry, the dcor printing industry, and the corrugated printing industry, employs a build plate that descends from a horizontal printing plane where each of multiple printing heads extrudes a road cycle of thermoplastic material onto the immediately underlying road cycle of the sleeve.