Motorcycle helmet visor drilled vents

prusaprinters

Warning : This model is the dumbest shit ever and motorcycle helmets engineer will probably hang themselfs while looking at this.____________I wasn't happy with my Dual roads helmets on off-road use, and was hopping to get additionnal fresh air. Since I am a highly skilled pilot, I never crash and don't drive this fast (I never exceed 200km/h).  So I said to myself « Why not drill holes in my new helmet ».This model have been designed to give additionnal vents, especially for dual-roads helmets that have visors and not off-roads goggles. Drill 3 holes in any visor, then, use this pinacle of technology to have plug in case of rain or when times are cold.The first model is designed to fit in the holes. The second ones are optionnal plug for when you want to block the air passing. The thirst model is a helper to help you when drilling.Tips / additionnal notes.Use the helper and draw the holes location with a sharpy.Print parts with flex material like TPU.Use metal drill bit, small sizes to the 10mm size.Drill at least at 10mm from the edge to not damage the visor.Do not drill next to the joint.You will probably destroy the UV protection on the visorI highly suggest to use a old / scrapped visor.Don't sue me, I will not take any responsibility of this.