MUDRUN.CZ EMERGENCY WHISTLE

thingiverse

January 2015 is marking a historical event - the first ever winter Spartan race in Slovakia, where every participant must have an emergency whistle at all times as mandatory equipment. In conjunction with mudrun.cz (the OCR magazine), whistles are being attached to 550 paracord and distributed free of charge either as a promotional item or given to individuals who left their own whistles behind. It's imperative that you're not experiencing any technical difficulties, as the problem lies elsewhere. Plenty of working whistles have been printed, so I'm confident that mine won't be the cause of your distress. The steps below should guide you through assembling these promotional items yourself - no special expertise is required here since it's surprisingly straightforward. Step one: Since printing 3D models are something even I can manage despite being a novice myself, please print these whistles out. Print in high-visibility filament to increase visibility.