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Archive: https://archive.today/LLRAZ

From the post:

>The density of MDF is around 500kg/m3 versus PLA at around 1240kg/m3. So this means I could print at 50% infill and exceed the density of MDF. First I tried 90% infill. It did not go well. There was terrible curling with the default settings with the X1 carbon; unacceptable! I reduced to infill to 50% which helped – less plastic, less shrinkage in theory.

Archive: https://archive.today/LLRAZ From the post: >>The density of MDF is around 500kg/m^3 versus PLA at around 1240kg/m^3. So this means I could print at 50% infill and exceed the density of MDF. First I tried 90% infill. It did not go well. There was terrible curling with the default settings with the X1 carbon; unacceptable! I reduced to infill to 50% which helped – less plastic, less shrinkage in theory.

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fully parametric

Physically scaling a design to fit the mechanical dimensions of speaker drivers will lead to the creation of a lot of shitty speakers. There are many acoustic variables that need to be taken into account when building speaker enclosures. Even using just the Thiele-Small equations for acoustic system design is not enough to work out in modern speaker construction.

Ports and vents have taken over the sealed box concept and higher order band-pass/stop designs are also very common now. These all require some serious acoustic modelling and a lot of characteristic data for your speaker drivers you are using. It's become quite complex now, but most people will just try to fit the biggest sub-woofer driver into the smallest box and call it a day. The results sound like total shit, but it's loud because they pumped 10,000 Watts into it and claim to hit 190 dB even though that would destroy the city if the reached such a sound pressure level.