Silencing loud things Part 3 (final part)
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- čas přidán 16. 12. 2023
- This is part 3 of this series about soundproofing my noisy shop vac. In this part, I finish the enclosure and do measurements. Some of the elements may be helpfull for similar, but bigger projects like a vocal booth, drum booth or other kind of rehearsal room.
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![3 Easy Wins - Soundproofing a Workshop Wall [video 469]](http://i.ytimg.com/vi/9OH4Blo6lDs/mqdefault.jpg)
Nice build, also you should check "hooked on wood" sound box he made for the exhaust
Excellent result. As mentioned in my previous comment on the second instalment of this build, there has to be an issue with heat build up with this kind of enclosure. As it is now several months since the original build, I'd be interested to hear your experience. Nochmal, vielen Dank aus Schottland!
Good question : I wouldn’t let it run for longer than half an hour. I had running for approximately 20 minutes, and the exhaust air was kind of warm, but not hot. Since it’s 2 kW of energy, I wouldn’t recommend to let it run for an hour anyway, because it would get expensive overtime. Furthermore, I have a smoke detector above the enclosure.
Thanks for the quick response. I tend to use the large, noisy vac only with the mitre saw or table saw. For other operations, I go with a small cordless vac that is much quieter. That said, with both of those larger tools, it is unlikely to be running continuously for very long. Sanding or using the router is another matter. I'll definitely have a go at making one.
Great video and workmanship! Thank for creating this informative series. 👍👍👍
Great result, good job! A suggestion to improve it even more: I think adding some cushioning floor padding could greatly reduce the vibrations and thus some sounds.
Ah, I missed to show that: there’s exactly that between both floors. 4cm thick, the stuff with which I sealed the mineral wool.
Great result, and similar to your table saw great demonstration of the process (including the bits that didn't go so well)
Outstanding job!
Nice one!
Nice!
I once (around 20-25 years ago) set out to build a box like this for a computer that I thought was too loud. I never finished the project though because I made some mistakes early in my design and it made building it very difficult. Also I don't think I managed to find any high density rubber foam material to line the "maze" with. I think it would've worked had I not been too sloppy, because I think I hade similar ideas as you, and yours obviously is working.
Thx. Yeah, sounds familiar. Btw, the lining in this maze´ish box is an open cell foam, the trademark here in Europe is basotect. I forgot to mention that in the video (I rushed it at the end to have it published finally).
Thank you. Very helpful video. I am trying to find a budget friendly solution to collect dust for a cnc router that uses a handheld palm router. Thus, would you recommend a Camvac (that you have) attached to a cnc machine? A cnc router job can run hours at a time. I heard the Camvac can only run for 45 min before overheating. Many wood workers use a shop vacuum but the Camvav is much better than the shop vacuum. Any light you could provide would be greatly appreciated.
Good question. I think the camvac should not run that long. It´s 2k of watts crammed into two small motors in a small bin. Thats a lot of energy. Recently the camvac was running for about 20 minutes while I was routing a bunch of parts for drawers. The exhaust air was warm, although not very warm or hot. Neverletheless, after 20 Minutes I felt like "nah, perhaps I should give it some time to cool down".
Danke für die Videos!
Danke fürs reinschauen 🙂
Most vacuum noise is the inlet and outlet wind. How does this perform regarding heat ? Does the vacuum motor get too hot ?
Hi, the inlet and outlet wind is definitely less loud than both motors with 2k watts in total. But of course there is some noise in the airflow as well. The heat question is very good, I was concerned about that as well: I made a test run for about 15 minutes and the shopvac was kind of normal warm. It seems it’s the flowing air that cooles the vac the most. However putting any 2k watts device in an enclosure should always be paid attention to. And don’t forget the risk of static electricity and sparks etc. I have a smoke detector on the ceiling above the vac.
@@tims.2832 Thank you . That is very informative.
Tolles Video! Ist evtl. auch ein Bauplan vorgesehen, in der die einzelnen Komponenten und Materialien (wie z.B. das Basotect) beschrieben sind und in dem die im Video erwähnten Verbesserungsvorschläge / Alternativen mit einfließen?
Moin Fabian, im Moment noch nicht. Der Grund ist, dass ich derzeit noch wenig Projekte mache, die gut "bauplangeeignet" sind. Damit meine ich die Projektkomplexität. Es gibt ja eine Bandbreite von "quick-and-dirty" bis hin zu "Raketenphysik". Je einfacher, desto mehr "bauplangeeignet". Die meisten meiner Projekte neigen zur Komplex-Seite. Da ist das Video als proof of concept und als Ideengeber vielleicht nützlich, ein im Vergleich zum Video noch detaillierterer Bauplan aber nur mühsam zu machen (und vermutlich auch mühsam umzusetzen, der Plan könnte schnell frustrierend sein, weil er hier und da gar nicht funktioniert).
Great work and awesome result.
I'm wondering, would it has the same good result if you dig up a box shape hole in the ground and put the vacuum with that fancy lid in there? Seems easier to do😅
Off course the mobility is zero. Lol.
Ja, my projects are leaning towards the complex side. But hey, other people paint or draw complex stuff , others rehearse months or years. I build things ;-)
@tims.2832 thanks for the very helpful and interesting video. I have some questions 😅. Did you use basotect or a generic alternative? Do you think it is more effective than those recycled rubber granulate mats that can be used for anti-vibration and on construction sites? Also, did you consider alubutyl sheets used for cars? I'm considering these two options for my own upcoming sound proofing project, because I thought they might be quite good at lower frequencies and might need less space that mineral wool
I just watched the first two videos now and saw that you included butyl strips in your sound test. I wonder how it would have performed if instead of only using strips, you'd covered the entire walls. I think its only a bit less dense than mass loaded vinyl (though typically thinner), but has the added benefit of being elastic/viscose, so it also converts lower frequencies especially into heat in the same way that the green glue does. Not sure how much heat gets generated, which could of course be it's own problem
Hi Sebastian, I didn´t consider alubutyl, since this seems to be a very car-specific product, I would partly pay for charateristics I don´t need. Basotect is a good alternative to mineral wool, but its more expensive than mineral wool. Mineral wool is more fire resistant. I went with mineral wool mainly because of the price. Butyl is resonably affordable if you just use these cords/strips as decoupling stuff, but the costs would have added up if I had covered the whole wall. But my impression is, that in the whole system, the density/mass of the wall material and good airtightness does accout for most of the soundproofing result and less the layer of mineral wool (or hypothetically foam).
@@tims.2832 thanks for the response Tim. I asked about basotect because I saw you mentioned it in another comment, but I see now you used it only for the exhaust maze.
Regarding alubutyl, there's surely something im not understanding about using alubutyl, as it seems like it is an excellent and reasonably affordable (12eu per sqm) product for sound proofing even in non-auto applications, but I haven't been able to find much evidence online of others doing this. It's very dense and can be used in the same way as green glue, to create a constrained damping layer. If there's a reason you think it's not a great option, please let me know
One last question, I didn't find mass loaded vinyl online in Germany (where I'm based). Could you please let me know a product name that I can search for? Thank you!
This must weight a ton! 😳
a couple of osb/mdf boards and a couple of plasterboard. Not exactly edc, but on the other hand not a ton :-)
Great result for noise - but how easy is it to empty the camvac. As you say the whole idea is to not have any dust at anytime and emptying seems pretty hard - except if you used a vac. 😀
it is easy, to detach the VAC and take it out, the top side is wide enough. The vac is coupled with the inner enclosure via magnets.
@@tims.2832 I had forgotten about those and their purpose. Well done. Did you cover the actual can in MLV, it would seem best to stop the noise as close at the source given how much work you have put in.
As others have said awesome series showing the effect of various treatments, vid 1&2. I particularly like the fact that you did a free field analysis to get higher quality measurements. I had always wondered how to do it best for cost.
Then showing just how hard and serious you have to be to make highly significant noise reduction vid 3