A converting machine used to convert sheet material into packaging templates for assembly into boxes or other packaging, the converting machine comprising: a converting assembly configured to perform one or more transverse conversion functions and one or more longitudinal conversion functions on the sheet material, the one or more transverse conversion functions and the one or more longitudinal conversion functions being selected from the group consisting of creasing, bending, folding, perforating, cutting, and scoring, to create the packaging templates, said converting assembly comprising: one or more longheads comprising a body and one or more cutting wheels or one or more creasing wheels that perform the one or more longitudinal conversion functions on the sheet material, at least one of said one or more longheads being free of any electrical or pneumatic actuators and connections to a cable chain or other conduit that transfers signals or energy to the at least one of said one or more longheads, said at least one of said one or more longheads being selectively repositionable along a width of said converting assembly make the one or more longitudinal conversion functions at different positions along a width of the sheet material; a crosshead having a body and one or more cutting wheels or one or more creasing wheels that perform the one or more transverse conversion functions on the sheet material, said crosshead being selectively movable relative to the sheet material and along at least a portion of the width of said converting assembly to perform the one or more transverse conversion functions on the sheet material, wherein said crosshead is adapted to selectively engage and reposition said at least one of said one or more longheads along the width of said converting assembly; characterised in that a converting roller that may be selectively moved between a raised position and a lowered position, said converting roller being configured to support the sheet material when said one or more longheads perform the one or more longitudinal conversion functions on the sheet material, said converting roller being configured to engage at least one of said one or more cutting wheels or one or more creasing wheels of said one or more longheads when said converting roller is in the raised position, and said converting roller being configured to disengage said at least one of said one or more cutting wheels or one or more creasing wheels of said one or more longheads when said converting roller is in the lowered position, such that said one or more longheads may be selectively repositioned along at least a portion of the width of said converting assembly. one or more longheads comprising a body and one or more cutting wheels or one or more creasing wheels that perform the one or more longitudinal conversion functions on the sheet material, at least one of said one or more longheads being free of any electrical or pneumatic actuators and connections to a cable chain or other conduit that transfers signals or energy to the at least one of said one or more longheads, said at least one of said one or more longheads being selectively repositionable along a width of said converting assembly make the one or more longitudinal conversion functions at different positions along a width of the sheet material; a crosshead having a body and one or more cutting wheels or one or more creasing wheels that perform the one or more transverse conversion functions on the sheet material, said crosshead being selectively movable relative to the sheet material and along at least a portion of the width of said converting assembly to perform the one or more transverse conversion functions on the sheet material, wherein said crosshead is adapted to selectively engage and reposition said at least one of said one or more longheads along the width of said converting assembly; characterised in that a converting roller that may be selectively moved between a raised position and a lowered position, said converting roller being configured to support the sheet material when said one or more longheads perform the one or more longitudinal conversion functions on the sheet material, said converting roller being configured to engage at least one of said one or more cutting wheels or one or more creasing wheels of said one or more longheads when said converting roller is in the raised position, and said converting roller being configured to disengage said at least one of said one or more cutting wheels or one or more creasing wheels of said one or more longheads when said converting roller is in the lowered position, such that said one or more longheads may be selectively repositioned along at least a portion of the width of said converting assembly.