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zakruti.com » Knowledge, science, education » GreatScott!
My Last Chance to OVERPOWER my Vacuum! (Homemade Turbine)

My Last Chance to OVERPOWER my Vacuum! (Homemade Turbine)

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Rating: 4.5; Vote: 2
I will try to OVERPOWER my Vacuum Cleaner one last time with the help of one of my viewers. He designed better impeller models and in combination with a new BLDC motor and driver, we want to find out whether we can beat the original design. So come along as I test static pressure, air flow and run into lots of problems during this last attempt. Let's get started! David: From an ex vacuum engineer - it isn't as simple as either 'max flow against no back pressure' or 'max pressure pull with no flow'. What matters is the inbetween, and whether your impeller performs well in series with the back pressure of the vacuum's filters. Vacuum cleaner companies use a metric 'airwatts' to characterise it - pressure times flow rate (in SI units) actually cancels out to watts, and you can compare your electrical power in to your air moving power out!
Date: 2023-07-09

Comments and reviews: 18


can I suggest not to buy that specific brand. its overpriced and is just not worth it. They suck. and not in a good way. batteries die way too fast and their suction strength is terrible. It is faked by making the pipe only half the diameter at the inside. but you know just aswell as I do that it doesn't make a difference once in use. Its a total waste of money. trust me. the brand name doesn't do a thing besides making sure accessories of one model refuse to work on another for no reason what so ever. Take my advice. stay away from that crap.
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The vacuum companies are the same companies who submit designs to NASA, seriously. Dyson has an enormous r&d team and their impellers are some of the most efficient designs. It s almost impossible to diy and vacuum better than the theirs when it comes to efficiency. Not to say that you can t make a stronger or longer lasting one.
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Do a lost PLA casting of the most aggressive impeller with aluminum, drill a hole perpendicular to the shaft and tap it for a grub screw of your liking. With that done you should no longer have issues with the blades coming off because you can just tighten the grub screw to the shaft.
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You should try a resin 3D printer for that. It is possible that bc FDM printers aren't known for printing air tight enclosures. It is possible that there are small holes in the enclosure that prevents it from producing pure vacuum. Resin solves this problem
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I got a Bosch Ultimate 7. lighter than most Dysons, sucks about as much, uses normal Bosch DIY battery's and has a nose so you can stick it in corners easier.
oh and costs about a third compared to a Dyson.

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Smart man, two entertaining and educational videos, annoying the gf, then using that to pay for the vacuum she wanted in the first place. Love the 3d printed impeller remover tool.
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heya, if you ever look for a nice vacuum that doesn't cost as much as the dysons, you could try some of the xiaomi ones, they are actually surprisingly good
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need tighter tolerance. resin printing might help, or if u really want to go overkill, machine the impeller and housing from billet aluminium lol
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Great video. Gained knowledge otherwise you would not have, is far more valuable and beneficial. Like a road trip, getting there is part of the fun.
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Put a groove on the end of the motor shaft - spin it up full speed and use a triangular file - and then a circlet will keep the impeller in place.
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Maybe you can try to integrate a screw shaft coupler by heating it and melting the plastic. That would probably make the prop fixed enough.
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Dysons suck, literally. We ve got a brand in the UK called Shark that are pretty good, not sure whether you can get them where you are though
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Maybe when your girlfriend said, your vacuum sucks, it was a compliment? :P
Keep it up, I'm expecting a knighthood for your efforts soon!

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FDM is not the way to go for this. If you don't want to buy a resin printer or don't trust resins strength, get it made in SLS/MJF
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Try to saturate the printed parts in super glue or clear nail polish it helps solidify the prints and can achieve a smoother finish.
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at this point, you need to concider metal insert in the plastic and press fit on the shaft of the motor. nice video keep it up: )
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Regarding patreon, you mean to be able to afford an dyson: D I hope your Girlfriend lets you try to improve the vacuum further: D
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10: 35 in part 3, i think you will be going to buy a brand new vacuum cleaner with your girlfriend have fun
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