4.1.5 Printer shall be enclosed box structure  with visible print area.  4.1.6 Printer shall be provided with licensed  print  preparation  software  which  supports  working  with MacOS  and  Windows.  4.1.7 Print preparation software shall support  STL and OBJ file formats.  4.1.8 Printer shall have ethernet port for data  transfer.  4.2 Desktop 3D Printer  Quantity:3  Manufacturer’s name  Product model/type  Country of Origin  Definition  The printer shall use Fused Filament  Fabrication method and it shall be  compatible with materials such as PLA,  nylon,  ABS  and  Carbon  Fiber  Reinforced filaments.  4.2.1 Printer  shall  have  dual  extruder  operation.  .  4.2.2 Build Envelope for single nozzle shall  have minimum of 200 x 200 x 200 mm.  4.2.3 Printer shall support printing of chopped  carbon filled filaments.  4.2.4 2kg PLA, 2kg ABS and 2kg Carbon  filaments shall be provided. Filament  colors  shall  be  white,  black  or  August 2020 c4f_annexiitechspeciiitechoffer_en.doc  Page 46 of 49 