Summary These files are three different versions of a mount to attach a Magicshine LED light to a Giro Montaro helmet using it's included GoPro mount. This may work for other helmets and LED Lights, YMMV. Rev 3 is probably the version you'll want to use, it places the light closer to the helmet and gives the most adjustability. Note I have posted a few other Magicshine to GoPro mount helmet adapters: Giro Edit: http://www.thingiverse.com/thing:684331 Generic: http://www.thingiverse.com/thing:197074 Print Settings Printer Brand: RepRap Printer: MendelMax 1.5 Rafts: No Supports: No Resolution: 0.2mm Infill: 70% Notes: I used 0.2mm layer height and 70% fill with ABS. These parts are designed to print without support. You'll have to rotate the parts to lay flat on your print bed, typically either + or - 90 degrees on the X axis. How I Designed This Designed using Solidworks 2016. I included both .STL files and the native Solidworks files for your remixing fun.