How (Not) To Build A Power Meter | GCN Factory Tour With power2max
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- Опубликовано: 15 сен 2024
- If you thought that making a power meter was a simple process, you'd be wrong. Simon is at power2max in Germany where he takes us through a step-by-step factory tour as he makes a power meter from scratch!
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Let's just say that Si shows us how much of a skilled job it is!
From the lazer etching spiders to dynamic calibration, there are a number of highly technical steps involved with the manufacture of power meters like the NG Power Meter from power2max.
Join Si as he has a step-by-step tour of the power2max factory and tries his hand at building a power meter of his own!
If you'd like to contribute captions and video info in your language, here's the link 👍 gcn.eu/mM
Watch more on GCN...
Road Bike VS MTB 📹 gcn.eu/eF
Unboxing the power2max NG Power meter 📹 gcn.eu/NGpower
Photos: © Bettiniphoto / www.bettiniphot... & ©Tim De Waele / www.tdwsport.com
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Leave us a comment below!
Let us know what you think about Si's soldering!
For an amateur, I'd give him a solid 5/10.
i could give him some 'Hot tip's...lol
As the guy in the vid said " Es ist gar nicht angelötet " it isnt soldered at all 🤣🤣🤣
Powermeter, soldered by Si: Accuracy 40%. But, »it's not broken, it's British!«
I guess I've never actually heard a Brit say the word "solder" before today, but is it a universally British thing to pronounce the "l"? I'm just curious because here in the US, the "l" in "solder" is typically silent. I have to admit, it does sound better with an English accent.
That was a very cool show. Thank you GCN & power2max. Many, many years ago when I started out my career as a component level repair tech on mainframe computers, I was woefully pathetic when it came to the art of soldering but it didn't take long to master the art. By the time I moved onwards and upwards, I was THE soldering specialist. Anybody can do it, it takes perseverance, just as with everything else in life does, if you want to succeed.
Wayne Richter Simon will be happy!
Yep, quality of GCN shows is great, no question about it, power2max is more practical than powertap, pedal based power meters, but its price might make your bike more attractive for thief , while someones carbon bike with such gadgets could easy cost more than car used by many people in the world, so that is why so many people wants something similar but much cheaper even if accuracy will be sacrified ;)
I was considering buying a NG Eco in the future, but now I'm afraid to end up with Simon's monstrosity!
They included a GCN t shirt and warranty instructions to let you know if you get one of Si's ;)
It probably already contains a return label. :D
@@Fidasaind hahaha
I've been a Power2Max user for a couple of years now, coming from SRM. I don't miss the 3x more expensive units from their competitors at all. I'm not very fond of the slight delay the readings have (between 1'' and 2''), but sometimes that's actually useful (for sprints, for instance, when you simply can't keep an eye on the head unit). It's great to be able to change the batteries myself (plus, they are unbelieavably cheap). This video makes me feel more confident (dare I say proud?) of the power meter I have on my bike. I would never imagine such a rigorous, high-cost/high-price products German company would allow for such great insight. Thank you, GCN and P2M.
Kudos to power2max and kudos to Si and GCN. Great original content that is educational and entertaining. So hard to do. Certainly great advertising for power2max. I will look at them carefully when I am purchasing a power meter.
Big thanks to GCN for this!! I finally understand how a power meter works, why they're expensive and what goes into making one! Brilliant stuff!!
Congrats to power2max for letting you do that! Awesome video!
Great video. Advertising a product, yes, but doing it in an informative and entertaining fashion. This is the way to do it! (not like that Ask GCN Anything video the other day with the Fizik guy... cough, cough)
How much cheaper would the power meter be if they didn't have to cover their losses form Si's visit?
lol
this is so good im crying - everything i ever wanted to love about power meters explained
I have just found the joy of bicycling again after my youth. Your channel has been informative and inspirational. Thank you GCN.
What power2max just did was awesome, I mean, probably the best you had the occasion to do and on par with the frame you built.
+xGshikamaru we'd have to agree. So cool to get behind the scenes. Huge thanks to power2max!
Good job Simon, nice to see you taking a real interest in how things are made from scratch.
Did anyone else notice "for GCN training" near the barcode at 1:17?
Germans don't believe in coincidence :)
Filip H oh my god ,neither do the french !
Informative video. That was cool. Thank you GCN.
+TRON KNOWS thanks TRON!
Good Video GCN! Thanks
Good stuff, love these factory tours. Keep up the great job producing this sort of content Si!
Got mine ordered....can't wait!
When checking the soldering the pcb to the battery connectors, he actually says "It's not soldered at all?!".
M9IN0G Its easy enough done, the solder sticks to one side of the joint and not both. It's not obvious until you begin to understand how solder flows.
I would like to see a tutorial of how to install that power meter by Simon
Next video will be set in Disneyland with Mickey Mouse showing how to make a Stages.
Mr B :)
i have one
not sure if it works
the only good thing is that I live in protoland
I own two Power2max units (as well as other brands) and this video makes me even more likely to buy more Power2max in the future. There is a lot of "made in xxx" rhetoric but a factory tour really separates the marketing from the reality.
Merci pour ce super reportage
6,000 miles on my type S and totally satisfied. Set and forget. Auto calibration. Never a weird data spike or a dropout. Simple - & rare - battery replacement.
Fantastic video, incredibly interesting and chapeau to Power 2 Max for showing so much of their process.
This was a GREAT!! Love these "How it's Made" videos, thanks GCN
So if you receive one with a GCN T shirt you know you have a dodgey power meter! Lol
Great video
"Hopefully that's not gonna be tracable to me specifically..."
*Holds barcode up to camera
I've got a new favourite GCN video.
7:39 "es ist gar nicht angelötet!" means "it is not soldered on at all
!"
Can we do more of these kinda videos, how helmets are made, how are wheels made for example. Love the content keep up the good work
Interesting as hell, +1
Awesome vid.
i spent about half an hour going through parts of this video frame by frame (do this by pressing the < or > buttons when paused) so i could translate the german words i was seeing...'twas fun
Thanks saved me 1k just did my own power meter
from personal experience, those strain gauges are an absolute bitch and a half to install on anything.. props to those guys for being able to do it flawlessly every day
TheGreenMachine I know what you mean, I was thinking the same.
very informative video, Thanks GCN
Nice video
I like their idea of all employees eating breakfast together, but I don't like to start work at 7 am :-)
Interesting and entertaining video.
Brilliant video!
As an american, I've always been jealous that you guys pronounce aluminum and soldering right...
i love power2max
Si should have to use this power meter he made :p
Damien he is!
His ftp suddenly shot up 50w 🤣
Love this one!!
No doubt that German people are so precise at working.
You can probably test out different shaped chainrings on the dyno and see the results
would be an interesting little series
0:20
That's one of the most German things I have ever heard(no offense).
Nice to know you were in Saxony!
Factory Videos are great, keep up the good work Si, you just need more time on the soldering iron, and a tad less morning coffee...
He gave a good try;. Welding and soldering properly is a difficult skill, and one needs lots of practice.
That was a fun video :D
How do you install this type of crank based powermeter? Would you need a crankset with removable cranks on both sides? It looks similar to the Specialized chainrings system that I never understood.
Si looked like a little boy in a candy shop.
Si remember when it comes to soldering "THE BIGGER THE BLOB THE BETTER THE JOB" 😳
Wow that was a big sausage!
I have to agree Si's soldering skills were lacking, there are more important questions & answers needed about power meters. Like how much temperature actually affects the power reading while riding. Living in Melbourne Australia, you could start riding in 25dg afternoon then all of a sudden it could drop by at least 10-15dg. How much will it affect the reading?
Si the Science Guy
imgur.com/a/KJ3oV totally not Photoshopped
Nice vid interesting
You guys should put the GCN power meter on Simon's custom GCN bike he made awhile back.
I feel like we need a new challenge: GCN Presenter Solder-Off. Who can solder the best?
Simon has got to be holding the UK record for vocal fry
Oh Si, the USA (and I think most places) have had that storage system since the 80s.
Who says the Germans don't have a sense of humour? Great vid.
I think your welding is better than your tapping, Simon 😊
Will this fit on a Shimano Ultegra crank arm ?
Anyone know when the NG eco will be up for sale?
Si looks like Bill Nye
and even sounds like it too!
How do they test how accurate things like the dyno machine and turbo-trainers are?
He is so fu**ing sympathic.
I really like his infantile behaviours ☺☺☺
Despite his set backs, Simon soldered on ...
Germans keeping eye on everything Si touches.......sounds hilarious!
With so much tech no wonder power meters are so expensive!
Hmm wouldn't these be really flexy laterally with the leverage of the big chainring? I know most of the load is rotational/angular but still.... Removing that nice big one piece shimano spider and replacing it with 2 tiny little bars that close to the crank shaft axis doesn't inspire confidence.
You really fluxed it up Si!
The making of power meters is a closely guarded secret...and today we put it on the internet.
This is unrelated but I was hoping that you guys gcn and the viewers could help me spread the word that there are ways to save team drapac and I want people to spread the word, please there are many jobs on the line and if this team is gone, there are many extremely talented riders that could lose their job
This is 20€ of electronics + some milled aluminium and paint, that costs at least 490€. Insane
GCN club specific powermeter???
Micro soldering. Hnnng!
I'm actually attempting to make a power meter out of cheap parts Arduinos, NRF24L01 wireless modules and strain gauges off ebay. So far it looks like it will work but haven’t completely assembled it yet for testing on the bike. Check out this forum for more info normandnadon.com/forum/showthread.php?tid=3083 Soldering strain gauges takes a bit of care with the soldering iron, I had to do 4 of them.
Great video by the way would love to have the chance to do such a factory visit. Shows how much of the cost of a power meter is wages of skilled workers. If I payed myself a wage my homemade power meter would be a very expensive one but the parts cost very little.
That a good way to save money if you don't mind a huge ass box. The power 2max ones however also measure torque, the pedal smoothness and so on so it will still be better.
Charles Lo The real purpose of mine is to create the world's first bicycle to have fully automatic shifting and use a CVT. It is only one sided but I'm still measuring torque and going by the graph I was getting on my phone I think I could get an idea of pedal smoothness as well. Power meters from these big manufacturers will always be better and more accurate because they have a team of people working thousands of hours refining the design. I'm learning a lot and I'll have something that's hopefully more accurate than a HRM.
cerebellum Its possible but a bit of a challenge to get it streamlined. Energy use is one of the most difficult ones, to get it to run on a small battery requires some super refined circuitry.
I might be wrong as I haven't got to it yet but I assumed calibration was reasonably simple. The strain gauges are just measuring a force on the pedal and so hanging a known weight from it is all that's needed. The force becomes a torque because the crank is spinning. Power is calculated from the torque and the rotational speed.
cerebellum The power consumption of measuring strain gauges isn't that insignificant now that I've calculated it. About 0.1 watts in my case as I'm energising the Wheatstone bridge with 5V. You've given me a good idea if I use the Arduino to power the bridge only when measuring the voltage I could save a little.
The challenge is that the lower the voltage across the bridge the more amplification is needed to get a useful output voltage. The higher the amplification the more that noise becomes an issue.
Si's onto sausages 😂
Its not that much of a secret, but to make something universal and accurate the components, materials and production is just expensive. Still they can be much cheaper than right now...
So "how NOT to build a power meter" - Tour with power2max... You guys are really selling power2max through that title ;)
I get it thats why there so expensive they have breakfast for everyone
Neat How about a tour of a chain making factory
David Hellyer - have a look at this video ruclips.net/video/h8j5-dC6_x8/видео.html
Did anyone hear "How It's Made" music?
Man eyyyy Simon warum kommst du immer zu spät
You can tell the eco is the cheap one - Si is using only one glove!
12:18 :D
Now I know why power meters are so expensive.😮
"Just down the road cupel hundreds k 's away" that's a pretty big road
Si looks like Matt on the thumbnai. l
Know I understand why these things are so expensive a lot of precision done by humans and not machine
Fourth?
The noise during the test is horrible.
Egg cucumber and franks? Wat?
Guoenyi most German breakfast I have ever seen.
Guoenyi Must be specific to Waldhufen ;)
To be fair, Si was trying to get at least some sense of humor from Germans...
No harm to them. But that breakfast looks awful
Sooooo... we don't get to win one?
That's Si for you!