Teardrop Speakers

by Framingr, published

Teardrop Speakers by Framingr Jun 16, 2017
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Fusion 360


Teardrop Speakers by Framingr is licensed under the Creative Commons - Attribution license.

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A set of speakers (desktop) I designed using the teardrop back ported construction. They were designed for the Dayton Audio PS95-8 3-1/2" Point Source Full Range Driver 8 Ohm and tuned accordingly.
The speakers print in two parts which twist lock together. For the most part they print without support though you will need it for the main body which prints driver end down. Your printer will need to be fairly well tuned in order for the twist lock to work straight off the bed - otherwise a little sanding will be needed. The tolerances are deliberately low because the lock needs to be tight.
They have holes for the pegs towards the back of the speaker and I personally placed accoustifill (essentially stuffing) inside mine (allowing of course for airflow out the port) to give a little more depth and richness.
I am very happy with the final sound after driver break in.

Mine were printed in Hatchbox woodfil and then given 6 coats of satin lacquer after sanding ALMOST smooth. I wanted some print lines left. You do them how you like. I do feel however the softer wood filament was of a benefit to the sound.

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Sorry for another (somewhat dumb) question: Other than the 3d printed parts & the drivers, what else will I need?

You will need some short speaker wire - or at least some medium heavy gauge wire. I also like the accoustifil product but in a pinch you could use the very light stuffing they use for chairs. You will also need the pegs for the speaker inputs and any associated cables to go from your musical device of choice.

Oh and of course the ability to solder

Excellent. Thanks much! I'm printing speaker #1 right now.

Awesome - let me know how they work out for you. As mine break in I feel they sound even better. One word of advice make sure you wire up the speakers and remember which is positive and negative correctly (the pegs should truly represent the polarity they are attached to) If you cross wire one of the speakers you will lose a lot of base.

What infill % did you use? Any other print setting tips?

3 shells - 10% infill. I find that when I plan to sand something the shells are more important than the infill. In this case the walls are not very wide so its not necessary to pack them full of infill