CLARIFICATION No: 2 Q36  Item 1.3.3.  specification required; “ The build chamber shall be at least 200mm  in radius by 200mm in height ”.  Would you kindly inform us if it is acceptable to offer a DMLS system with a  rectangular build chamber as soon as dimensions are big enough to perform  manufacturing 200mm in radius by 200mm in height? Please refer to Changes to Tender Dossier No. 2. Q37  Item 1.3.12.  specification required; “ The machine shall have all the necessary  equipment and accessories supplied to process aluminum, titanium, tool steel,  stainless steel 316L including 2 build plates of each mentioned material and 1  cylinder set with lids for each powder type mentioned, filter set for each  material type ”  Could you please clarify do the specified materials (such as aluminum, titanium,  tool steel, stainless steel 316L) need to be provided in the scope with 3D machine?  And if it is required, could you please specify the required quantity for each  material (in kg)?  The stated specification might not have been  totally clear. However, the materials that need to  be included are aluminum, titanium, tool steel and  316L stainless steel with one cylinder full of each  material with their separate cylinders. The amount  of material that a cylinder accept might differ  between manufacturers hence it is not possible to  state an exact quantity in terms of kg.  Q38  Item 1.3.12.  specification required; “ The machine shall have all the necessary  equipment and accessories supplied to process aluminum, titanium, tool steel,  stainless steel 316L including 2 build plates of each mentioned material and 1  cylinder set with lids for each powder type mentioned, filter set for each  material type ”  We understand as if cylinder set refers to a demountable build chamber apparatus  which houses the excess powder and built product after manufacturing is  completed and used for transferring the excess powder to glovebox without  interaction with air.  Many leading manufacturers offer a separate powder collection cylinder which can  be also transferred to glovebox without carrying the test piece. Would you kindly  confirm that this cylinder is acceptable?  Cylinder-based additive manufacturing machines  have 3 cylinders that are used during the  manufacturing process. One of the cylinders is  used to hold the initial material, one cylinder is  used as the build volume and the last cylinder is  used for excess material. The specification  requires 1 set of cylinders for each mentioned  material, which means a total of 12 cylinders is  required. This is need to prevent cross contamination between material types. The build  volume cylinder is processed in a separate  machine that is also filled with inert gas. ublication Ref: NEAR/ANK/2020/EA-OP/0056  Subject: Supply of Equipment for Final Stop Before Climbing the Ladder: Mantar Cultivation and Technology Commercialization  Center Sayfa  12  /  21