Channel: James Biggar

Category: Howto & Style

Tags: crosskart buildair raid sirendiy off road go karthow to build a go kartdiy buggyelectric buggyelectric go kartelectric crosskartelectric vehiclediy electric buggydiy evdiy off road buggyoff road buggyelectric trikebuild a crosskartdiy crosskartdiy electric crosskartelectric motorsportsdiy go kartdiy sirenbuggy buildhow to build a buggyev noiseev soundelectric motorbikehow to build a crosskartdiy electric go kart

Description: In my attempt to create some sort of noisemaker for the kart (maybe) so it's a bit safer to drive in the trails, I took the wooden siren that I threw together a few weeks ago as a 'proof of concept' (link below) to the next level and redesigned it for either sand casting the parts in aluminum or using compressed carbon fiber, and made a working prototype with my 3d printer that can be used to make molds. I've got access to loads of scrap cast aluminum alloy, so I may take that route next. The printed parts came out pretty strong at just 20% infill and are holding up fine, producing over 80 db at 2500-3000 rpm, which works out good for this application since most vehicles are limited to creating around 90 db of engine noise (sometimes by law). The siren's pitch can be changed by changing the size and # of port holes and the rpm range (with gearing), but I think it's just about right for a kart. I'm not sure if the cast version will actually get installed in the kart since this was an afterthought and the kart wasn't designed with space to spare for it, so I might end up saving the idea for a future project anyway. I might even investigate doing this electronically instead, if I can figure out how to use a raspberry pi to do the job and find room for speakers. Any suggestions are welcome. Wood siren test video: youtu.be/sonniMSDPOo Website: resystech.com Follow RST on Facebook: facebook.com/RenewableSystemsTechnology