v30: v29 whistle remix with source files

myminifactory

So Joseph Zisa is either refusing to share CAD files of his v29 whistle or doesn't have those, so I decided to create my own from scratch based on his general idea. This one has a different license: it's GNU GPL v3. The main difference is that if you remix this thing, the remix also needs to be licensed on the same terms. The shape is quite different and there are no internal ribs, so you can print it much faster without losing any function (you probably shouldn't print this without infill). And it can be much lighter, thus allowing it to naturally stay afloat if printed with less infill. It doesn't need all that extra weight from redundant ribs v29 has. The source files are available here: https://cad.onshape.com/documents/127002769eb5c2412870432a/w/84e3ee8687bc0f8d1c3acb2c/e/6e75b4f3ba9b11e85a305dd4. I printed and tested a few, and in my ears it sounds way louder than v29. Holy shit, it's ringing a lot! Don't use it in an enclosed room. Also, I tested it outside, and even though I was in an open field, my ears are still ringing. Bloody hell, it's freaking loud! You're totally allowed to make an unbranded version of this whistle. You can even put any text or logo on it, just don't claim the authorship. The Onshape guys keep changing the interface often, and the export button for anonymous viewers doesn't always work. If you need a source file but can't export it for some reason, feel free to ask me. I'm perfectly fine if someone rehosts this thing or its remix as long as it honors the terms of the GNU GPL v3 license.