{"id":16821,"date":"2021-05-03T18:16:19","date_gmt":"2021-05-03T16:16:19","guid":{"rendered":"https:\/\/nerdiy.de\/?p=16821"},"modified":"2022-07-24T22:24:23","modified_gmt":"2022-07-24T20:24:23","slug":"news-may-2021-current-projects-and-developments","status":"publish","type":"post","link":"https:\/\/nerdiy.de\/en\/news-may-2021-current-projects-and-developments\/","title":{"rendered":"News: May 2021 - Current projects and developments"},"content":{"rendered":"

Things have gotten a little quieter here on Nerdiy.de at the moment. This was because I was working harder on developing a few new projects. <\/p>\n\n\n\n

Unfortunately, accessing the website or creating new posts often suffers as a result. However, since the roughest plans have now been completed, this will soon change again. \ud83d\ude42<\/p>\n\n\n\n

Until then, I would like to give you a brief overview of the current projects in the following article.<\/p>\n\n\n\n

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WinDIY_2<\/h2>\n\n\n\n

Last year I presented \"WinDIY\", a wind turbine that can be made largely from 3D printable parts. (You can find more information here: WinDIY<\/em><\/strong><\/a> <\/em><\/strong><\/a>\u2013 The wind turbine from the 3D printer<\/em><\/strong><\/a>)<\/p>\n\n\n\n

Relatively quickly after building the first prototype it became clear that I would build a new version. The design of the first WinDIY version worked in principle, but there was a need for optimization in some areas.<\/p>\n\n\n\n

I now want to implement these optimizations with a completely new design. Not only the design of the wings is being revised. The 3D printed generator is also being completely redesigned. In addition, I also plan to simplify some of the somewhat complex mechanics. Ultimately, the structure should be lighter, the turbine should run more efficiently and also be somewhat more compact.<\/p>\n\n\n\n

I was able to gain a few partners for the development phase and the construction of the first prototype, which I would like to briefly introduce below.<\/p>\n\n\n\n

Thanks<\/h3>\n\n\n\n
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The magnets for the generator were given to me by Supermagnete.com<\/a><\/em><\/strong> provided free of charge. A generator is planned in whose rotor up to 40 neodymium magnets measuring 40x10x10mm can be installed in a Halbach array.<\/p>\n<\/div><\/div>\n\n\n\n

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To simplify the mechanics of \"WinDIY_2\", I use worm gears in various places. Unfortunately, the worms of these worm gears are very difficult to print on FDM 3D printers due to the overhangs. <\/p>\n\n\n\n

To solve this problem I recently switched to a Mars 2 Pro SLA printer www.elegoo.com<\/a><\/em><\/strong> To fall back on. This can be used to print 3D components with a very high resolution and even with overhangs. You can see a first result in the video below.<\/p>\n<\/div><\/div>\n\n\n\n

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Of course, to build a 3D printed wind turbine you need filament. \ud83d\ude42<\/p>\n\n\n\n

In this regard, I am pleased about the support of 3dPrima.com<\/a><\/em><\/strong> who support the development of WinDIY_2 with their filament and resin products. <\/p>\n<\/div><\/div>\n\n\n\n

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In the first version of WinDIY I mostly made screw connections with encased nuts. This often made assembly even more complicated. <\/p>\n\n\n\n

To make this a little easier, when building WinDIY_2 I will use threaded inserts that can be melted into the 3D printed component. The Company Ruthex <\/a><\/em><\/strong>supports me with the thread inserts provided.<\/p>\n<\/div><\/div>\n\n\n\n

At this point, thank you very much for your support, which makes the implementation of WinDIY_2 much easier. \ud83d\ude42<\/p>\n\n\n\n

First results<\/h3>\n\n\n\n

My first sub-project for building WinDIY is building a worm gear. Three of these are to be installed in the WinDIY hub in order to ultimately be able to adjust the angle of attack of the blades.<\/p>\n\n\n\n

The problem was that the friction between the worm and the worm wheel was too great when both components were printed using the FDM process. The rough surfaces resulting from the process repeatedly became wedged, which ultimately led to the worm gear not functioning reliably and blocking. The snail was also very difficult to print on an FDM printer due to the overhangs. <\/p>\n\n\n\n

Ultimately, the combination of FDM printed worm wheel and SLA printed worm turned out to be very suitable. You can see the result in the following video.<\/p>\n\n\n\n

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