[Eng sub] [DIY] How to make a concrete-filled speaker box. 3D print 

I made a speaker filled with concrete.
The exterior part is printed with a 3D printer, and the cavity inside is filled with concrete. Filling with concrete has reduced the noise of the box (compared to the previous work). The use of concrete makes the speaker body heavy, so care must be taken when handling it. It must also be handled with care to prevent cracking of the concrete.
See the previous video on how to design.
Previous video 3D print Making backroad horn speaker • 【電子工作】ダイソー300円スピーカーを3D...
★ Equipment (including Amazon Associate Link)
・ Speaker (sold in Akizuki) 8Ω, 7W
・ 3D printer Anycubic mega-s i3 amzn.to/2DxAX1r
・ 3D printer filament amzn.to/2Ph8NgQ
・ Heat gun amzn.to/2NLhPBJ
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