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Gli ultimi otto messaggi ricevuti dalla Federazione
  • Breathe Easy While Printing With this VOC Calculator

    We love 3D printing here, but we also love clean air, which produces a certain tension. There’s no way around the fact that printing produces various volatile organic compounds (VOCs), and that we don’t want to breathe those any more than necessary. Which VOCs, and how much? Well, [Jere Saikkonen] has created a handy-dandy calculator to help you guesstimate your exposure, or size your ventilation system, at least for FDM printing.

    The emissions of most common FDM filaments are well-known by this point, so [Jere] was able to go through the literature and pull out values for different VOCs of concern like styrene and formaldehyde for ABS, PLA, Nylon, HIPS and PVA. We’re a bit disappointed not to see PETG or TPU on there, as those are common hobbyist materials, but this is still a great resource.

    If you don’t like the numbers the calculator is spitting out, you can play with the air exchange rate setting to find out just how much extra ventilation you need. The one limitation here is that this assumes equilibrium conditions, which won’t be met save for very large prints. That’s arguably a good thing, since it errs on the side of over- rather than underestimating your exposure.

    If you want to ground-truth this calculator, we’ve featured VOC-sensing projects before. If you’re convinced the solution to pollution is dilution, check out some ventilated enclosures. If you don’t want to share chemistry with the neighborhood, perhaps filtration is in order.

    Thanks to [Jere] for the tip!

    hackaday.com/2025/12/23/breath…

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  • Canada runs one of the largest holiday traditions on Earth.
    It’s not a parade. It’s not a TV special.
    It’s a mailroom that answers every letter to Santa.

    Learn all about it in my special Christmas Day issue.
    ✅ Sign up at newsletter.todmaffin.com

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  • What the best tasting water

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  • Ah yes, the Four Stages of EDM.

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  • Fuori dal vortice. Qualche parola su una nuova operazione repressiva a Genova
    @anarchia
    Fuori dal vortice. Qualche parola su una nuova operazione repressiva a Genova FUORI DAL VORTICE qualche parola su una nuova operazione repressiva a Genova Il 5 maggio 2024 un partecipato ed energico corteo ha attraversato le vie del centro storico...

    Vedi

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  • Let's do this... @feditree@masto.es

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  • Melomakarona
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  • @mos_8502 this post finally convinced me to pull the trigger on a beige C64 Ultimate. It's been in my cart for weeks. But, I really like the idea of making games and tools that take advantage of a big REU (which I guess VICE and TheC64 can also have, so it's not unique to C64U, and folks who make software that uses it can expect a sort of broad set of possible users). It's almost entirely unmapped territory. This demo was another contributor to the decision. https://www.youtube.com/watch?v=RK8U_sS5ld4

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