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Why not just use a rake and a broom?
You ever raked am acre? Or three? Ten?
I didn’t say you had to do it all on your own.
Why isn’t there video of this yet? I didn’t care at all what an article says. Show me the video
There’s a video at the bottom of the article. https://youtu.be/ISgHpUDeLBw
Here is an alternative Piped link(s):
https://piped.video/ISgHpUDeLBw
Piped is a privacy-respecting open-source alternative frontend to YouTube.
I’m open-source; check me out at GitHub.
Good. I fucking hate leaf blowers.
The best invention against leaf blowers so far is the scrapyard.
I want the stl!
There’s no way this won’t affect the final CFM or Velocity of the air.
This would be no different than running it at a little less than 100% power, but wastes that energy instead.
Why else would they not provide any technical detail, even a wind velocity test would be huge FFS.
They wont release anything because the design is being sold to black&decker, yay
As soon as it’s out to market someone will clone it and have an STL available
it literally doesn’t matter because most people don’t 3D print
Ok?
no.
see my comment above.I’ve read the article attached, the article linked, and the video linked as well.
Not one talks about anything technical other than it doesn’t decrease the power, so where’s the stats to prove it? You can’t silence or muffle something without a tradeoff, we ignoring basic physics here?
So what does your comment prove?
I don’t know, it sounds like it slightly redirects only the air at the margins that contacts the blower tube, which reduces turbulence. The noise reduction is due to the decreased turbulence, not a reduction in airflow. If I had to guess, the actual reduction in airflow is probably negligible, and they don’t describe it in more detail because they’re trying to commercialize it
So they could provide the testing data to prove it. Even the numbers, don’t need a full detailed video.
The lack of proof to their claims is concerning.
They’ve made a claim they should have known would need to be verified, eventually…… its bush league for that on its own.
You seem really worked up about these undergrads’ project
I thought having a conversation about the validity of their claims would be an okay thing to do in this community?
Or are you saying this place is for something else?
You demanding more evidence right now and saying these students’ project “is concerning” is not having a conversation about the validity of their claims, it’s just being petulant. Saying, “I’ll be interested to see the specs” or “I’ll keep an eye out for testing data before I believe this” would convey the same thing without coming off like an asshole
It’s data they should have had to begin with, they made the claim. Of course it’s going to be questioned, they could have been upfront with the data.
What other reason would they omit it? Other than to mislead if it wasn’t actually 100%.
It’s funny how I am “demanding” something that would be just basic decency to include along with their claim, they provided the data for the sound after all……
They are almost certainly restricting the amount of information they release under the advice of the legal team at the University, in preparation for the impending commercialization. I agree, it’d be great to have the details and to live in a world where all information is free and open. However, we don’t on both counts. The assumption that they could only be attempting to mislead people when this isn’t even a product for sale yet, is at best naïve and at worst willfully obtuse.
If it were me that designed this, I would license out the design for manufacturers to use in their production models instead of making some kind of attachment that is unlikely to work on all models. That seems much more likely to achieve the goal of reducing noise from leaf blowers long term. Get like 3 manufacturers on board that could even charge a premium, and you have reduced the noise potentially forever while still making a tidy profit.
It was a collaboration with the company. They probably helped fund it for exclusive licensing to start.
Companies know they can make tools quieter. They didn’t do it because louder sounds more powerful to consumers.
For the stupid maybe.
Turns out they number around 70 million in the US…
Somebody tell Kate Blanchett
??
Are the majority of people who use leaf blowers regularly really going to buy/use these?! I think the leaf blower droning is almost a relaxing noise to me but those god forsaken commercial mowers are a little annoying
Removed by mod
I prefer Lucifer 🤣 just saying chain saws and weed eaters are pretty rufff
I’ll wait until I can 3d print my own. I’m not paying for a hunk of plastic.
Based on how it works, (not how they say it works) you need a different geometry depending on the frequency. So it’s only going to work at select rpm.
It squashes the fundamental and certain harmonics and fractional harmonics.
Since I probably won’t be able to patent the idea myself anymore, maybe I’ll publicly disclose.
If anything changes, and you have an STL or 3d model you can still sell it.
Lol what do you put into your 3d printer?
A string of plastic, not a hunk =D
Fair!
But a rake is not powerful, you want proof? It barely makes any noise!
Not gonna 3d print a rake.
Maybe a baby rake for sand or something
Why do leaf blowers exist in the first place?
So annoying twats can be annoying.
To blow leaves.
I often see those things with a sack on public workers here. They suck leafes. 🤯
Some leaf blowers are also leaf suckers but it can get a bit messy since they usually mulch the leaves, too.
And clean up after mowing.
I also use mine when starting a fire. Way easier then using a pot lid of blowing.
Ha! I have the smaller work bench cleaning “blower” for my fires. It’s awesome.
Back when I used a Weber charcoal grill I’d bust out the blow dryer.
Nice
Have you never raked a yard?
I still say replace them with rakes.
I get what you’re saying, but leaf blowers are also commonly used for cleaning up extra grass clippings from the roads, etc.
And sand/dirt after a windstorm, at least in my area. They’re really quite useful.
Electric is so much quieter. They have them in Singapore
This thing influence how air moves through it, so it would make electrics more silent too
The video in the article shows them testing with an electric leaf blower.
The gardener in my last apartment replaced all of his powertools (mower, blower, trimmer, …) with electric ones powered by an accu-pack he carries on his back. This is an absolute game-changer! I could actually sit outside again and even do stuff for work, when he was there.
This was designed for electric leaf blowers, not gas leaf blowers.
Electric leaf blowers are much much better, but they’re still loud, and that’s what these students were attempting to address.
Pretty sure when I saw the original post talking about the design, they said the students were only working with electric leaf blowers. So this was designed to make electric leaf blowers even quieter.
Let me help you with the correct wording: ‘Power to noise’-converters. You’re welcome.
