Cobra Infantry Helmet 3D Model STL File There are three files available for immediate download (See listing picture): Inner Helmet Outer Helmet (Note: This requires a print bed that is 350mm x 350 mm x 350mm for head circumstances 24 inches and larger.) Spacer This purchase includes the STL files ONLY. The helmet itself must be printed on a 3D printer using these files. Refunds cannot be processed if the file has been downloaded. Scaling will be necessary to size this helmet to your head circumference. The table below shows what scale to print at for each head circumference for this visor: Head Circumference (Inches) Print scaling (%) 20 87.50 21 91.88 22 96.25 23 100.63 24 105.00 25 109.38 26 113.75 The last pictures are examples of how the mask looks printed.
