Rotary drum apparatus reconfigurable for various size substrates

A rotary drum apparatus comprising:

• a drum rotatable about an axis of rotation, wherein the drum comprises an inner circumferential surface comprising a plurality of connection sites spaced circumferentially around the inner circumferential surface of the drum;
• a set of first shell segments having a first number of the first shell segments releasably connectable with the plurality of connection, and each of the first shell segments having a first outer surface, and wherein the first outer surfaces combine to form a first outer circumferential surface surrounding the axis of rotation and defining a maximum radial distance from the axis of rotation;
• a set of second shell segments having a second number of the second shell segments releasably connectable with the plurality of connection sites, and each of the second shell segments having a second outer surface, and wherein the second outer surfaces combine to form a second outer circumferential surface surrounding the axis of rotation and defining a second radial distance;
• wherein the rotary drum apparatus is configurable between a first orientation and a second orientation, wherein in the first orientation the set of first shell segments are connected to the plurality of connection sites, and wherein in the second orientation the set of second shell segments are connected to the plurality of connection sites;
• wherein the first number of the first shell segments is different than the second number of the second shell segments;
• wherein the maximum radial distance is greater than the second radial distance;
• wherein each of the first and second shell segments comprise a shell member releasably connectable with the support member, the shell member having a curved outer surface;
• and
• the rotary drum apparatus further comprises a vacuum member releasably connectable with each of the shell members, wherein each of the shell members further comprise a plurality of vacuum apertures in fluid communication with the vacuum member.