My Last Chance to OVERPOWER my Vacuum! (Homemade Turbine V2)
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Published 2023-07-09
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Previous video: • The Most Underrated Tool? (DIY or Buy...
Previous Vacuum OVERPOWER video: • I tried OVERPOWERING my Vacuum! (Home...
Rctestflight video: • DIY 3D Printed Vacuum Impellers
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You can get the shown components and impeller files here: (affiliate links)
Impeller Designs: www.patreon.com/posts/85244104?pr=true
BLDC Motor: s.click.aliexpress.com/e/_DdQ6ahT
FSESC: s.click.aliexpress.com/e/_Ddiqsp7
In this video 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!
Thanks to Rohde & Schwarz for sponsoring this video.
0:00 DIY Vacuum Impeller got Destroyed!
1:12 Intro
1:57 Measuring Static Pressure of DC Motor
3:22 Old DIY Impeller Design Static Pressure
5:35 NEW DIY Impeller Designs
8:04 Practical Vacuuming Test + PROBLEMS
10:03 Verdict
All Comments (21)
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It's almost like the Bosch engineers knew a thing or two about designing a vacuum cleaner 😆
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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!
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I never would have thought I'd watch a 3 part series about a vacuum cleaner. Lol
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I hope you do part 3 and keep leveling this up. Even if you buy a dyson, its fun to learn this stuff!
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You should take a look at the way cutting discs are attached to angle grinders. They are held on by a nut that's threaded opposite to the spinning direction. The centrifugal force keeps them tight, they will never come undone on their own.
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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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I just want to say that also printing an impeller removal tool was a very nice touch & not something I expected to see. Great job!
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Create a black hole
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The closed impeller design they used can make a massive difference for static pressure. On impeller to motor connection just get some metal(alluminium) hub for plane/car model motors and make the impeller connect to the hub instead of the motor shaft. This will introduce much higher surface and possibly hard connection to it.
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For part three, maybe include a "turbo button" with a 30s timeout that runs the motor at ~95% of the maximum that the motor and controller can handle and run it at whatever level the lady deems acceptable all other times.
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Add a boost button to overclock the motor for short periods of time, if you get in trouble spots
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Do NOT purchase a Dyson. They are pretty and have great suction, but that's about where their benefits end. They get clogged up super easily and the plastic is super brittle. Mine was under warranty and they said I can't get it fixed because they don't have the parts for it. WTF??
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Would be a costly surprise if it actually sucked up all the water and spilled to your lab bench.😅
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I'd like to publicly acknowledge how much Scott cares for his girlfriend. Clearly, her ability to quickly and efficiently vacuum his apartment - and, therefore, her quality of life - is hugely important to him.
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Be sure to check out the Tineco Pure One. We have several clients with handheld Dysons that we occasionally use if we're just adjusting something or didn't make a big enough mess to grab our Festool shop vac from the truck. One of these clients replaced theirs with the Tineco when their Dyson died and couldn't be repaired. The Tineco is way quieter and feels less like it's been overly value-engineered (just feels more solid in general).
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you should try getting the impellers SLS or SLA printed. It should help with airflow by having a smoother surface, and the SLS one can be CF Nylon, which should be plenty strong and light for this application
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Just a heads up PCBWay does polymer SLS printing. Maybe they'd sponsor a V2/MK2 of the 3D printed impeller.
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A grub screw will help with keeping the impeller on. It will have to be factored into the design. As far as the impeller is concerned you could try carbon fibre filament, it may be stronger. The other option is creating a silicone mold of it and using a casting resin or making a clay mold,and using aluminium to cast the part.
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Strongly fixing the rotor to the shaft will solve a lot of future problems.
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Hello Scott! Do you consider printing the impeller with other materials, for example ABS? Because in general the density of ABS filament is about 10% lower than PLA and PETG. Maybe saving a bit weight on the impeller can help the efficiency. Thanks!
