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nothinglabs

NOMOON Speaker Generator

by nothinglabs Dec 15, 2014
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Is there any way of making the legs of the stand flat at all rather than pointed at the base?

There's an OpenSCAD zip file for them. You should be able to modify (if you don't know OpenSCAD - just google it..)

Ahhah! I missed that!

Thanks!

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Thanks a lot for your work! Getting quite a nice sound with these even with cheap drivers!

What did you use for amplifying the speakers? or Do these speakers already come pre-amped?

What temperature did you use? My silver PLA seems to be overhanging without supports.

I print at 230c. I definitely get a little overhanging towards the bottom of the sphere - but things generally work out OK.

I have found that increasing to 300 micron layer height can surprisingly help with overhangs / curling.

-Rich

I printed one with Grey ABS instead at 230c and at 0.3 mm layer height. I still got the overhangs at the base but it came out okay on top. Can I make a suggestion and attach small supports to the base that can be easily broken off to help with the problem so users won't have to select support material and end up spending a lot of time cleaning support material on the inside. Thanks

Note that for certain drivers you may get better results without a port, and stuffing the box with acoustic stuffing. (Pillow stuffing works well). This makes an "acoustic suspension" type sealed box which has a more gradual F3 roll off than the ported box does. You can get deeper bass with a given driver with a ported enclosure, but the box must be larger and the bass may be "boomy" rather than "tight". Drivers with a lower QT work better in ported boxes, those with larger QT's are good candidates for sealed boxes.

Anyway of turning it into a portable Bluetooth speaker ?

Yes - I've done a few of these. Check ebay / dealexteme for things like "bluetooth audio receiver" - you'll also need a small amplifier board. There are also some combo boards including amplifier. Trick is finding things small enough to fit in the speaker opening. Also - there's issue of getting mono as opposed to just right / light (combine the audio signals pre-amp - don't try bridging amplified outs - results in smoke).

Haha. That's no moon! I wish it looked more Death Star-like and less like an igloo. Still cool and this would just require aesthetic changes.

Cooool. What's the wall thickness set at?

5mm by default. Think this is reasonable for smaller speakers.