Spherical speaker enclosure for 'Mona 2.1' speaker set
Description
This spherical speaker enclosure is designed for the 93 mm chassis <a href="https://www.monacor.de/produkte/components/lautsprechertechnik/hi-fi-breitbandlautsprecher-/spx-30m/">Monacor SPX-30M</a>, which is the sattelite chassis of the 2.1 <a href="https://acoustic-design-online.de/de/mona-21.html">Mona 21 speaker set from ADW</a>. The design consists of one (almost) spherical enclosure, two long legs (90 mm) and one short leg (70 mm) per speaker. Via the length of the rear leg one can vary the vertical beam angle of the speaker. Here the angle is appr. 5° upwards. The legs have 5.9 mm holes, in which I glued sawn-off m6 screws. They are mounted to the sphere with M6 nuts from the inside of the sphere. To mount the chassis to the sphere I glued four M3 nuts into the corresponding holes in each sphere. Maybe not the most solid solution, but it worked by carefully screwing in the four screws per speaker. At the lower back of the spherical enclosure there is a hole for a RCA Jack Connector / cinch socket which you can screw tight from inside. By the way, the sub-woofer enclosure was build as a classic wooden cube. My design was inspired by these two things: <a href="https://www.thingiverse.com/thing:3564085">Mona 2.1 Speaker by ADW</a> and <a href="https://www.thingiverse.com/thing:3100140">Circular Speaker</a>. As you can see on the pictures I've chosen white color for the sphere and no color for the legs (black PLA). It was quite a lot of work to give the sphere this look (grinding, filler, grinding, spray filler, grinding, spray color, grinding, again spray color), but from my point of view it was worth the effort. Print time was around 37 hours for each sphere. *Printing instructions:* In Cura I defined support blockers around the inner support. You can see that quite good in the picture of the print process. That way it was much easier to cut out the supports after the print finished. I didn't do that for the first sphere and had quite a hard time to cut out the "circular support". The outer support caused quite some rework with filler and grinding at the back of the sphere (see pictures).
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