headlamp
thingiverse
Here is a suggested replacement for Nitecore HC30 or Xtar H3 V2, which fits onto a 20mm headband. For those with a 25mm headband, the Xtar H3 V3 might be more suitable due to its M5 screw fitting.
Download Model from thingiverse
With this file you will be able to print headlamp 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 headlamp.