Originally Posted by
Winfried
The
Kickstarter page says that "the project was successfully funded on January 13, 2013.": Out of curiosity, what technical issues did you have that kept the product from being shipped earlier?
The most major one was when the injection molded parts had different sound qualities than the 3D printed parts we prototyped with. I describe that problem in
this video. Another problem was with the button connector which used to be right on the horn housing
like this, but in tests the huge vibration from honking would wiggle the connector right out. We moved the connection point to the cable outside the housing and now it works great (
horn photos here and below).
Originally Posted by
Winfried
I stopped using the Airzound because 1) it didn't work in the rain or when it was cold, and 2) the volume knob broke after just six months.
The Loud Bicycle horn is crazy, I've ridden it in through tropical storm Arthur last month. Here is a video showing how
water resistant the bike horn is.
Originally Posted by
Winfried
As for building one's own bicycle car horn, there's the issue of weight (
li-po battery + two-tone horns + relay + switch + wires) and not getting fried when it's used in the rain.
Yeah, car horns are pretty robust but protecting a high powered LiPo and the button is the tricky part. A friend of mine had success putting all the electronics inside a sports water bottle. Then mounted it naturally in the water bottle cage. To charge he simply unscrewed the lid. I'm not sure what he used for a water-resistant button though ...