Head Sizing Reference
thingiverse
Here's a model I've been using for sizing my helmets to my head you may find useful for getting your helmets to fit your head just right. You can use the free program Meshmixer to resize this head to your head and use the model to base your helmets sizing on. There are youtube videos showing how to use the Measuring in Meshmixer. Dimensions (approximate) width (middle side of head to opposite side) 6 inches / 154 mm width (temple to temple) 5.2 inches / 134 mm width (jaw) 4.6 inches / 118 mm length (brow to back of head) 7.5 inches / 191 mm height (top of head to chin) 9 inches / 229 mm
With this file you will be able to print Head Sizing Reference with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Head Sizing Reference.