Вставка
- Опубліковано 1 тра 2022
- A portable dynamic balancer based on the digital HS-ACC platform
NOTE: these two dynamic balance projects are not equal
HS402W BAL is analog. The waveform is less noisy, needs less filtering. Its analog IR is capable of up to 4000 RPM. It is a more challenging build.
HS-ACC BAL is digital. The waveform is noisier than I'd like but cleans up with aggressive filtering. Its digital IR tops out at about 1300 RPM. It is an easier build.
DOWNLOAD Build Info here:
github.com/theGADGETSplaylist...
ESP32 firmware found here:
github.com/martinloren/HScope
HS-ACC WiFi Accelerometer site:
www.martinloren.com/hs-acc-wi...
Firmware is not open source. At the time of this video, the $6 activation fee was waived by the developer, Martin Loren. The free version of HScope will run this project and can be found on the Google Play Store. - Авто та транспорт
I don’t think that I’m ever going to build this device but I nonetheless very much enjoyed watching the video. I just love how make very useful measurement equipment with cheap components. Brilliant!
Thank you very much Denis!
thanks so much for your comment, Eduard:)
Gotta keep those…Vibrations a happin with her. Just like Brian Wilson said 😃 Another genius build. 👍
lol...thx Ian
Outstanding quality content & presentation Denis.
thanks so much, Grunter:)
I'm thinking this will be my next build, Thanks Denis
it's an enjoyable build Chris
you'll like it, I'm sure:)
Interesting. Certainly a great idea for dealing with dynamic balancing.
thank you:)
Great work!
thanks Eric:)
I know you're a busy guy, appreciate you dropping by...
Another great Gadget Denis👏,
I hope to have some time soon to build one of those
Thanks for all
I know you've been really busy, thanks for dropping by:)
Denis, it's really cool and compact. Keep it up.
thx Owais:)
@@theGADGETSplaylist My pleasure!
This is awesome, I'd love to build this setup and try it out on a few of my cars. Not sure i would go as far as to deploy it in my little workshop (who knows, maybe) but i'm going to seriously look at this, been searching for a relatively cheap method of on-car balancing my shaft for a while now since no one around here can do it anymore (and funnily enough, because of the shaft/end flange design, manufacturer actually states it should be on-car balanced as a whole assembly....but even the dealers don't have the gear anymore)
driveshafts are actually easy to balance right on the vehicle...but not with this GSADGETS#167 which is limited to about 1200 RPM max due to the digital IR sensor
better to go with ADXL335 analog based solutions...I demonstrate driveshaft balancing in GADGETS#153
if you don't want to get fancy, then the equipment I used in GADGETS#60 to balance table saw pulley is capable of driveshaft balancing speeds
Very compact, a nice and simple device!
with 3 GADGETS, I've shown the world how to get in the dynamic balancing game affordably with your HS-ACC project
Nice compact unit & some nice 3D printing too
thx Phil:)
these 2 dynamic balancing projects are not equal:
HS402W BAL is analog. The waveform is less noisy, needs less filtering. Its analog IR is capable of up to 4000 RPM. It is a more challenging build.
HS-ACC BAL is digital. The waveform is noisier than I'd like but cleans up with aggressive filtering. Its digital IR tops out at about 1300 RPM. It is an easier build.
Awesome gadget! I like the direction this is going. The next generation will fit in your shirt pocket. 😁
That's the plan!
lol
Amazing! Does this just show balance or the spot that needs balancing too like a tyre machine or just if something is in balance or not?
it can tell where to place weight
I demonstrate this in GADGETS#152
wow nice work
thank you, Dan
I am so glad i found this channel, so much useful info here. Could i hijak the hall sensor of the ABS system to get an RPM and secure the the accelerometer to an axle to figure out vibration while driving? Reason i ask is i have a semi I'm trying to sort out, and it's considerably harder and less safe to jack up and run on jack stands. Sometimes to get into a shop to get a proper balance done, it can take hours and most of the time the machines are"broken" and they just want to throw the beads in the tires, which have never worked for me. I've been researching ways to do a decent dynamic balance myself without purchasing a machine that can do commercial tires for thousands of dollars.
ABS sensor might give you RPM but would not provide a reference which is what we require for balancing...and balancing tires on test drives would be very tricky (if not impossible)
I'm thinking of a vertical tire balancer with video to be released later this summer/fall...it will be for lighter car tires but the principle there might work for you if beefed up for weight of semi truck tires
@@theGADGETSplaylist you're right, I thought abs had a gap somewhere to give a reference point, I'm confusing that with cam and crankshaft position sensors. A vertical tire balancer would be greatly beneficial, or maybe I can figure out a way to spin my front tires. Would you balance a tandem tire combo together or balance each tire individually?
@@boxoftj1 I suppose if tires remained as a pair then could get away with tandem
there would be a couple forces (the reason wide tires are 2 plane balanced) but on something so rugged as a semi should not be an issue
As you are familiar with balancing, can you tell which sensor is more sensitive if they have g rating. 100mV/g or 300mV/g? My mind says it’s the later but is it so?
you are correct, it is the 300mV/g
as with pressure transducers, the mV/PSI the better the resolution
that should have read the MORE mV/PSI
any sensor, the more mV/unit the better
I think I'd be taking on too much at once if I tackle the oscilloscope assembly (never used one except in university), I'm terrible at soldering.
Do you think it'd be feasible to use a Hantek 6022BE usb oscilloscope + the E18-D80NK photocell + a microphone (or tiny speaker) to do the wheel balancing? Instead of measuring the vibrations with an accelerometer, I'd be listening to them with a microphone.
I'm tempted to do that because I have a quickjack setup to lift my car and I don't really feel like spinning the wheels and make the car unevenly supported on purpose.
Also, what do you think about transforming a car 12v alternator into a motor (either brushed like stock or modify it to be brushless), and, instead of the pulley, you could fabricate an adapter to mount a wheel or brake rotor on it with a 3D printer? For a wheel or brake rotor, the adapter would either be a conical piece that fits in the wheel's center bore and a recessed center that is bolted to the alternator shaft where the pulley goes, or you could 3D print an adapter for the wheel stud pattern (5x114.3 for my car) and bolt it to the alternator shaft.
This seems like it'd be quite compact (just a jig to mount the alternator on), cheap (20-30$ for a used alternator) and it would have more than enough power. You just need a 12v DC and a 48v DC source to power the alternator in brushed mode. I already have a variable power supply from a previous project (hybrid battery nimh cell reconditioning) and the 12v can just be provided by a car battery or a battery charger. Pretty sure this setup can spin fast enough to send a wheel flying to the moon and you'd only need between 500 and 1000 rpm depending on total wheel radius and desired balancing speed.
I'm a chemist and a hobby mechanic, so I'm a bit out of my comfort zone here. But I'd first balance the alternator properly with its nut on the shaft and no attachment, then balance the 3D printed attachment, and then it would be ready to make the world nice and dynamically balanced.
Would this work? If so, given that the adapter would be printed flat (ie : printing axis perpendicular to load axis), do you think it'd be strong enough if the current is applied slowly? What material would you recommend for the 3D printing? Steel adapters for wheel balancers cost roughly 150 usd which is the same cost as a 3D printer that could print an adapter like this. For occasional, light duty use, if it doesn't shear and send a brake rotor flying, it'd be great!
Thanks in advance for your tips!!
E18-D80NK is a digital photocell and can only work with HS-ACC platform
E3F-DC30C4 as shown in #58 is analog and would work with HT6022BE along with ADXL335 analog
a stand alone tire balancer is something I've given thought to ... am resisting powering it with a motor (or alternator) ... maybe just bicycle crank and sprockets...
as a matter of fact, the turbine failed project in #170 was envisioned as the power source for a tire balancer ... was a flop, and that happens...I shared the fail on the channel to show that not all ideas pan out:)
I've had a crazy busy summer so not too much time for GADGETS...but intend to get back at it in the fall....
Great content Denis, heck I consider it an insult you've got less than 4k subscribers. Knowledge takes a backseat to cat videos I suppose. I do my part to let others know about yours and Martin's great work at every opportunity. Regards.
much appreciated, Don:)
Is the software running on your tablet on the ESP development board or is that an App?
there is firmware in the ESP32 and there is HScope app found on the Google Play Store
not open source but both the app and the firmware are free at this stage of development for HS-ACC
my hscope apps keep crashing when connected. Can anyone help me?
I love our content. You got me hooked on Hscope. As a long time Snap on Verus , ATS and Pico scope owner I love the Hscope app. I also love DIY just like your projects in your videos. I am a Industrial generator tech. Sometimes I cant fly with all of my scopes when traveling. I mounted a 1008c to my tablet and bring that on some trips. I switched to a 6074be as The ht25 capacitance lead and other secondary ignition probes would Immediately disconnect the 1008c scope. Can you suggest something to resolve this? Would the DIY ac coupling filter you made help? I would hate to have the 1008c go to waste. Also , one last question. For some reason on the rare occasion when the 1008c stays connected , it seems to output a cleaner ignition waveform vrs the 6074be. I used every sample rate to try and get a better picture. It seems like I loose data when I zoom in. Anyways, your channel is a gold mine. Ty for all the great content
thanks so much for your comment:)
HT25 disconnects is a subject recently discussed in our HScope Telegram Group. And needs further investigation. Likely EMI related.
I invite you to join the group Jesse. We'll try to get to the bottom of it.
t.me/hscope
Denis
@@theGADGETSplaylist Your quick response is greatly appreciated. I will be joining the group. Take care and thanks again >>>
Interesting subject. How do you differentiate which plane is unbalanced with a single sensor ?
single plane only with this build...for tires, 1 weight location, inside rim as you would see in factory balance of aluminum wheels
@@theGADGETSplaylistThanks. I was hoping for a trick by measuring the difference between two axis from the sensor. This makes the balancing quite challenging if not impossible if there's a significant unbalance between two planes or two parts. Your setup seems to be the electronic version of the method using a glass a water and a piece of chalk: ua-cam.com/video/zuPSGJZpL3k/v-deo.html
Really cool project, it would be fun to make it into a hobby open source project. If you don't mind, can you please share the firmware + software tool you use in the video.
The firmware is not mine and is not open source. Please check in video description for my recently added information on this matter.
Hi, greating from Romania, I'm not an engineer but I am passionate about the subject. My question is, if it is possible to build a easy to use but still cheep, all in one weel balancer that it's similar to the one on the market... Don't get me wrong, what you are doing is phenomenal job... But still I think the process of balancing is kind of part guessing the place where you need to put the weight part mounting the tyre on the car... It would be much easy to use if it have an electric motor to spin the wheel and also a light from a leveler to show you exactly where you need to put the weight. Anyway... Congrats for the good work you are doing!
greetings form Canada, Nicoara:)
yes, a tire balancing machine using these same components could be built
I do not at the present time have intentions to do so...
Greetings from OZ. Just an add-on to this project, strobe light . Strobe at the peak of the açcelerometre will give heavy at top add weight to the bottom .
@@mrman1536 greetings from Canada:)
this project is not strobe based, HS-ACC will not fire it...not an option
either IR sensor as I've used here...or a laser sensor with digital output (I have not sourced any)
@@theGADGETSplaylist Cheers for the feed back. My head naturally is analog. However i do like the digital outcomes with the no nonsense attitude you bring to your projects . Dynamic balancing , I like that.!
bro, you blew my mind with something that should be so obvious and is so simple. I think you would do good to rename this video. If I did not watch the preview, i would have skipped based on the title
glad video reached you Kasper:)
Hi Denis. I was totally blown away when I saw what you did. I have had many of these kind of problems in my line of work, so I think this product should help me a lot.
Is it possible to purchase the “tools” from you? I have a windows-based tablet & can download the app from the app store. That is all when it comes to electronics.
How can I get your email address to arrange. I am in South Africa.
thanks so much for kind comment:)
all HScope, HS Serie Oscilloscopes and HS-ACC Accelerometer is ANDROID only...
I share all build details on channel for DIY to build themselves...am too lazy to build for sale...