Fully 3D mini speaker with dual chamber bass reflex enclosure
Description
This is the basic components of a 3D printed speaker; you need to add magnets and copper wire, along with getting the plates machined from a local or online cnc (they can be cut on a lathe) (top plate/center section/bottom plate) The Surround should be printed in TPU or this speaker may not work. I used Varioshore Foam, but it should work with everything from 85A-97A it will just change the frequency response (higher shore hardness = high frequency response-- 85A will act like a small woofer and 97A should act like a mid) (the final version used the cosine surround and spider 2 folds) Magnets are as follows - read the info at the following link before continuing: https://www.stanfordmagnets.com/are-magnets-dangerous.html#:~:text=Precautions%20in%20Daily%20Life%201%20Pinching%3A%20Strong%20magnets,devices%20are%20sensitive%20to%20strong%20magnetic%20fields.%20 1- 39mm OD/22MM ID x 6mm Height MAGENTS ARE DANGEROUS, THEY CAN SHATTER IF LET FLY TOWARDS EACH OTHER, AND CAN ALSO PINCH AND CUT SKIN OR EVEN BREAK SMALL BONES, ESPECIALLY WHEN USED WITH SHARP LASER CUT STEEL- USE THESE DESIGNS AT YOUR OWN RISK - WEAR PROPER PPE (Personal Protective Equipment) also need a few metric fasteners 1- for the motor 4 to mount the speaker Copper wire is magnet wire with a .2 mm OD i used enough to set it up at 3.7 OHMs you'll have to check your manufacture spec of wire for OHM per 1000 ft and then do some conversion math to get your desired OHM rating. I Also used a coil winder to get a smoother and cleaner coil wrapping, you can do this by hand it just takes longer. --MAKE SURE YOUR AMP IS RATED FOR THE OHM YOU'RE WIRING FOR-- you can always wire higher than your amps rated OHM but never lower. Magnet bodies/coil should be printed in PETG as they can get warm. The Coil former was printed in vase mode due to the thin walls. everything else can be printed in PLA,PETG,ABS etc. make sure to use full cones bodies for vase mode and omit top and bottom layers. VIdeo Link: https://youtu.be/mMiM9TFpPfU
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