The author studied two options for cutting the bioreactor into 2mm and 5mm wide wires, then directly feeding it into the print head to directly 3D print the newly cut plastic wires or feeding it through the plastic wire nozzle and then using this plastic wire to install into the printer and 3D print later.
The first option helps to print directly faster and does not require many other complicated intermediate tools and operations, just using manual scissors can do it. The plastic wire pieces are heated at both ends to lengthen them together:

The results proved that it is possible to cut into long wires of the new bioreactor with both 2mm and 5mm widths. This is very important in plastic recycling because the items need to be crushed to be recycled, which requires large and heavy crushers, consuming a lot of energy. This is obviously very inconvenient when used in space. How- ever, the experimental process needs to overcome the problems of plastic brittleness, the cutting process has occurred plastic breakage phenomenon, the cut plastic wire has uneven width. The directions to handle these phenomena can be developed including developing a new type of PETG plastic with more flexibility and toughness, using a smaller diameter printing nozzle to increase the uniformity of the shell, researching a shell heater to soften them before cutting and to cut sections with even width, the author suggests using a cutting table or a cutting machine with a slice width gauge.