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Showing content with the highest reputation on 03/23/2019 in all areas

  1. 5 points
    Hear that, @Marty Backe? You, me, @UniVehje, @Touho and many others have been doing this all wrong! A modern powerful 18” wheel will not hesitate even when facing a tedious sets of roots, and even very steep short inclines and rough cliffs are doable once mastered. Doing it on a MTB is a completely different hobby. It is not about choosing the best vehicle to get from A to B, it’s about stretching ones personal limits on an EUC. I see, you’re just in it for the @Smoother sailing... Well, I don’t consider what @EUC Extreme does as just ”off-roading”. He’s riding style is a dedicated category of it’s own. He replaced a motocross bike with an EUC. My off-roading is often roughly the same, just at 1/10 speed. As are most other off-road EUC videos I’ve seen. For my usage the MSX is a perfect off-roading wheel. No cracked bones, shells or anything else. Hiking boots can do even rougher terrain! Why doesn’t anyone vouch for them here as a mode of transportation?
  2. 3 points
    NonStopNeal in Milan, Italy
  3. 3 points
    Ride today!! It was almost warm! Almost... The route was along a river and back. Still barely spring, as you can see. But no longer winter Small ford along the way. Wonderful water colors (looks nicer in real life). A bit further along... Colors! Further up the river. I've been told my pictures look postapocalyptic because there's no people in them. Friday afternoon is always pretty empty, it was actually hard to have people in the picture, but here are some. How many do you count? Point of return. It's always nice to see that it's 33km back home and thinking "no big deal" Rural scenery a few steps away. Snowy mountains hiding in the afternoon haze. Swans, pond, ACM, mountains. Saw a lot of swans today, never saw any before. Mountain view. Gorgeous sunset on the way back, looking behind me. The church spires are a neat detail. I promise there's other people in those vehicles More sunset. This definitely proves I did NOT release a deadly virus so I could ride undisturbed (as certain people surmised) Route (clockwise). Just a quick 60km ride I need bigger batteries.
  4. 2 points
    It just froze while In trolley mode. The wheel locked so I couldn’t even push/pull it. LEDs remained on. Power button unresponsive. Carried it back home. Damn it’s heavy. Unable to connect to KS app. Same with DB app. Got really hot (top cover, engine and rim) to the point I couldn’t touch it. Then it died.
  5. 2 points
    If you had been long enough on this board, you would know that I rarely AFFIRM something. I always say "I may be wrong" or I could be mistaken. You are referring to the wrong person. On the other hand when I see some blatant errors I point them SPECIALLY when they affect beginners. BTW you still have not posted a video of what you can do other than boasting that you learnt to free-mount in less than (I will let you complete) hours. I don't think you have enough time on the NB1 to claim that you are an expert on it. Food for though about stability. (hey, if the word has same meaning for you...) start at 00:33 and try to do that on a V5F. If you had also been there long enough @hirsute discussed it with Jonathan.
  6. 2 points
    Nothing like fart-sounds riding around big crowd. Also, this is a good song to play while riding around:
  7. 2 points
    I'm not looking at the wheel when I ride it, other people are. If they want carbon fiber or faux puke, they should pay for it, not me
  8. 2 points
  9. 2 points
    My use case for this is not to go faster actually. I despise the aggressive leanback and I find that a safety issue. I might be in the minority though.
  10. 2 points
    That's good to know. I haven't used the "up on blocks" technique so when I calibrate, my wheel is prone to being moved; that's why I use two phones (one with KS app and one with level app) so I don't risk moving the wheel while pushing the button on the KS App that says calibrate. I must admit i haven't calibrated in ages, maybe 6 months, and I have no drift side effects. Even my perceived pedal lean back was all in my head, its actually 2deg forward. I can hear myself becoming preachy about this calibration issue. If I come across that way, I apologize; I just don't want people to suffer when I have the answer to their problem @seage 's case in point. I'm no EUC guru, but the few issues I have successfully dealt with (always with help from forum members) I feel compelled to share, with those travelling the same path, only, a few blocks behind. But keeping with the distance analogy, at the rate @seage is riding, he'll be giving me advice soon.
  11. 2 points
    Jetzt gibt´s etwas Neues zur Legalisierung: Weil der Vorschlag des BMVI sowohl den Bürgern (vor allem denen, die bereits ein PLEV gekauft haben), als auch der Industrie sowie den E-Roller-Sharing-Anbietern maximale Bauchschmerzen bringt (der Quatsch, den das BMVI da zusammengestellt hat ist in der Praxis nämlich nicht umsetzbar), hat der Bundesverband Elektrokleinstfahrzeuge e.V. nun einen Gegenvorschlag erarbeitet. Dieser orientiert sich an der Praxis und ist zudem noch ganz einfach zu verstehen - geht doch! https://electricempire.de/presse/positionspapier-zu-legalisierung-aller-elektrokleinstfahrzeuge-in-deutschland-vorgestellt/
  12. 1 point
    Yeah. Wasn't me. Sometimes it seems the thread will incorrectly assign quotes. Happened to me a few times. Someone responds to me, and I'm like: "I never said that. "
  13. 1 point
    I calibrated my wheel as well today and found a good video for it.
  14. 1 point
    Sure, 1st picture posted by @houseofjob shows where the motor stop is located on the motherboard. 2nd picture is the switch I purchased from microcenter. 3rd and 4th pictures shows the enclosure I created for the switch in the same dimensions as the USB port and the final wiring. Let me know if you have any questions.
  15. 1 point
    There's a gazillion connectors available, but probably the balancing doesn't need to be done that often. So off the top of my head, if I'd bother doing something like this, at simplest I'd just get something like a basic 40-pin ribbon IDC cable (if you've worked with PC's, it's the "old" 2x20 -pin IDE-hard drive connector), or something with 17 or more wires/pins, cut the cable and strip 17 wires and solder the wires to the cells (16 wires to "+" -sides of the cells, which is the "-" -side of "previous" cell, and the last wire to the "-" of the last cell) , and leave it inside the shell. Since it's a female connector ("holes" instead of "pins"), it shouldn't cause a short circuit at any point (well maybe if there's water inside, but then the connector probably isn't your biggest problem anyway). When checking the voltages, you just take 2 "consecutive" (one after another) pins to check the voltage between them. To automate this, you'd need to connect two consecutive wires to the measurement circuit, so that the "low" side is connected to the ground and the high side is connected to the measument high side. To automate this, my first thought was using something like using a bunch of basic (and older than me) CD4067 16-channel analog switches to select the high- and low-side... you'd put the "high-side" 16-channel from wires 1-16 and the "low-side" from 2-17. High-side would connect to the "+" of the measurement, and low-side would connect to the measurement circuit ground (so the "low-side" / measurement circuit 0V would be at the "top" of the cell "below" the one being measured), and you'd move them one-by-one so that either channels from both would be at the same node of the battery cells (0V) or the high-side would be one higher (single cell voltage). The basic idea is to connect the measurement circuit ground to the negative side of the cell to measure, and leave the rest "floating outside the circuit". BUT, I don't think the inputs of these analog multiplexers are galvanically isolated, probably just a MOSFET? You'd still have up to 15 * 4.2V voltage between the first and last channel, something that I doubt the ICs could take (= I'm a bit drunk, didn't find anything on a minute glance at the datasheet, and first google results for "maximum voltage between cd4067b channels" didn't sound like they answer my question ), but the general idea would be to "step" through the cells one-by-one and check the voltage. Or charge, basically you'd just need a simple CC/CV power source with very low output current and maximum voltage of 4.2V, or if the voltage would be lower, the circuit should be able to also sink (enough) current, in case the cell voltage was above it. I'd need a (lot) more time to think this entire thing through really It might work, but if you get around playing with this idea, or some derivative of it, better test it without an actual battery first, or at least something that can't spew out large currents There are probably some nice balancing ICs available to get away from all the hassle I have a couple of ESP32's, but haven't used them much. If they have a separate AREF (analog reference) -input, you can use a precision voltage reference (for example, there are fixed voltage references with 0.1% tolerance, or even lower, I check my tabletop HP34401A with 0.05% references, although technically it has precision of 0.0035% DC, but hasn't been calibrated in 10 years) to use for ADCs to vastly improve the precision. About the WLAN and such, if you want to do precision ADC-measurements with pretty much any MCU, you need to shut off things anyway, as anything giving ripple / interference will cause problems with the measurement precision. If memory serves, ATMegas have separate power down-states specifically for more precise ADC measurements, where certain clocks are shutdown etc. to minimize "noise" in the circuitry. And memory serves: "AVR® devices have an Analog to Digital Converter (ADC) Noise Reduction mode, that stops the CPU and all I/O modules except asynchronous timer, PTC, and ADC, to minimize switching noise during ADC conversions. It's used when a high-resolution ADC measurement is required." Don't know if the ESP32's have anything similar, but shutting down all the unrelated peripherals probably would at least help.
  16. 1 point
    Keto has absolutely changed my life, so apologies if I sound like a cult-member when I talk about it. @Smoothergo check out reddit.com/r/keto and check out some of the links on the right hand side. It's an amazing community of supportive people who are all seeing incredible results. You never feel hungry, your relationship with food changes entirely. Couldn't recommend it more.
  17. 1 point
    Oh man, I'm glad I stay far away from #faceplantporn. 💩💩💩 One thing I've learned over my 3 year EUC run: arguing speed/helmets is as pointless as arguing religion/politics/kimkardashian, no one is ever convinced the other way.
  18. 1 point
    Over voltage is not a setting, @Flying W was referring to being over charged (and then presumably riding down hill) So the questions is: was it charged to 100% and were you trying to ride down hill? (although the hill is not strictly necessary)
  19. 1 point
    Cr@p, looks like I'm late for the party! Interesting debate you've got going on here. I'd say all the relevant arguments have already been made, but I do have a few thoughts that back/add to the rationale of.... [drum roll] ...the "Safety Nazi" side! (from the guy who face-planted at 40 km/h last week due to inattention) So I guess I'll start there by saying that I feel this crash was caused by a form of inattention: I totally understand how one can get caught up in the moment, the adrenaline rush, and have that overpower common sense and the wheel's limitations. Excitement, after all, can be seen as a distraction, and one with a grip on us that can be hard to shake off. I know that was my case...So no judgement here. Firstly, I'm glad the rider is OK. Secondly, I'm glad people are sharing this kind of content (and don't want to discourage it by being overly critical), as we all learn both from the event itself and from the discussions that ensue. There's a lot of food for thought in this thread. As to the debate...I entirely agree with @Duf and Smoother (not tagging, not sure he wants to be dragged back into the debate...unless, perhaps, it's with those pink hand-cuffs of his) Tiltback and other safety features are implemented for a reason. Disabling them seems like an ill-advised choice to me, particularly when it's been so well-documented in this here forum that that 3rd beep is as useful (particularly when wearing a FF helmet) as the idiot light on old cars, which only comes on once it's too late. Something else that puzzles me in that regard is why people opt for permanent settings: tiltback and beeps can be enabled and disabled at will, in a matter of seconds. It would be ridiculously easy (and make a lot of sense) to disable it, for instance, when riding/speed testing in deserted areas, tracks, etc., and enable it for casual daily riding or group rides, where you know you might find yourself pushing your limits (particularly in group rides where playful banter between EUCs and boosted boards can easily lead to spontaneous racing...) On the subject of speed and speed limits, I once again have to give it to Smoother: I agree with 100% of what he said: Speed limits are set with cars and motorcycles in mind, not EUCs: a speed limit of 50 km/h / 30 mph is set for a particular environment with the aim of giving cars and M/Cs (based on their braking capacity and drivers' level of control over their vehicle) sufficient reaction time and braking distance to avert an accident. If, say, a car's max. speed is 140 mph, we're talking about a speed limit that is 21% of the vehicle's max. speed. That means that at 30 mph, the driver is in no way pushing the limits of his car and has AMPLE breadth to react, as 100% of the vehicle's steering and braking capacity will be at his disposal. Even if we change the figures and assume the car wasn't designed to ever go its max. speed, and is only safe up to 90 mph, a speed limit of 30 mph is still 1/3 of the maximum speed at which the driver can still safely control the vehicle. An EUC, at 30 mph, is going its maximum speed, and even the slightest mistake, bump, distraction, etc., can cause a crash, not to mention that braking capacity and control over the wheel at that speed are in no way comparable to that of a car. There's a reason the Barcelona City Council set the speed limit for PEVs to 25 km/h (15 mph) on bike lanes that are on the road-side/away from pedestrians, and 15 km/h (9 mph) on bike lanes that are on the side-walk, where a mishap with a pedestrian is much more likely. I know, I know, the damage a car can inflict is much greater and all that, but we're talking about EUC safety margins. The car comparison above is simply meant to illustrate that we ride a very different kind of vehicle, with different speed, manoeuvrability, stability and braking characteristics, so speed limits set for cars don't (and shouldn't) really apply to us. And what's more, when riding near/at top speed, we're knowingly accepting a considerably high probability of having an accident, and by extension, imposing it on anyone in the direct vicinity of where we're riding (people who haven't accepted that risk). Yes, an accident can occur at 20 mph too, and our braking distance and reaction capacity may still be insufficient... which is why we should adapt our speed, at all times, to the particular environment of wherever we're riding, and in my book at least, riding near/at max. speed when there are other people and cars around is a definitive NO-GO: it's pushing the limits of our control over the wheel and wilfully subjecting anyone around us to unnecessary, unfair and easily avoidable risks, or as @Duf put it, "knowingly riding in this manner in an environment that was clearly not safe for doing so" I hate to disagree with you, @Marty Backe (I tend to agree with you on most topics), but even if things aren't as black and white as they may seem from the outside, dismissing something that could potentially (black & white, etc.) be considered reckless behaviour (I'm not judging or saying that it is) as "high energy enthusiasm" and "passion for EUCs" isn't as constructive as re-assessing our perspective and risk perception. As you said, it's about risk tolerance, but the question here is...whose? What about the risk tolerance of an innocent bystander who wasn't even aware there was a risk to begin with? I think events like this should be used as an opportunity to reconsider aspects (and possible consequences) of riding that we might not be taking into account, rather than waving it off as "boys will be boys" or "living the EUC life to the fullest". I know I did after my last fall (thanks, @Mono, for insisting that I do so ). I was the only casualty of my own mistake, and it was a very low-risk scenario in terms of other people (late at night, deserted streets), but the crash still prompted me to consider that there was still a (very remote) chance of someone else getting hurt, and decide to move my speed-testing to even more remote venues...I don't judge myself or others too harshly for my/their mistakes (live and learn), but I do feel that any post-crash attitude other than "what can be learned from this?" or "Are there any potential risks/consequences of what I'm doing that I may be overlooking?" is somewhat irresponsible (I'm not saying that's your approach ) We've (luckily) yet to see a any footage of a freak accident where a 50 lb wheel hits a curb, bounces up in the air and smacks a pedestrian on the head (at 40 mph, that's not that improbable, it could happen), so perhaps we're not fully aware of the potential risks of something serious happening. And if not for the sake of others, we'd be wise to take into account the PEV regulations and restrictions that are being implemented around the globe. I personally feel it would be in our own best interest to view crashes and situations like this as a blessing in disguise (no one got hurt and it provides a fantastic learning/mindset-reassessing opportunity) that might contribute to change certain attitudes and prevent THE BIG ONE that makes all the headlines and triggers us to start wondering why we didn't see it coming beforehand... (Clarification: I'm speaking broadly, this isn't directed at anyone in particular) In any case, we're all guilty of unnecessary risks to one extent or another (the minute we hop on an EUC), so no one's morally above or below anyone else. I'm just glad nothing serious has happened yet, and that we can have healthy and amicable debates and share opposing perspectives for the benefit of the community at large
  20. 1 point
    Es ist völlig egal wie schnell Du fährst. Wenn das Fahrzeug, mit dem Du unterwegs bist, schneller fahren kann (bauartbedingt) ist es (fast) völlig gleich wie fix Du gerade unterwegs bist. Jetzt und in Zukunft bist Du damit nicht legal unterwegs.
  21. 1 point
    It's a delicate balancing act, voicing one's opinion, while not offending someone, etc. We don't want people to hold back from sharing an experience from fear of being ridiculed, or told what idiots they were. And the continual effort to try and convey the desired speaking tone while writing is not easy either. Things get misunderstood, tempers flair, feelings get hurt. This is why I chose not to voice my opinion on this crash (exactly what @Duf said) and because sometimes I feel like one of the resident safety Nazis too. "Wear your pads" "watch out for tilt back" "be careful around pedestrians" blah, blah, blah. I thought I would give this one a wide birth and let others (@duff, @jacob) take it on. This is overall, a hugely positive forum. Even when we "fight" we rarely resort to the down vote, and usually make up (quietly, after a period of time). I would like it to stay that way, and continue to be a place where people can feel safe to report stuff that they know someone will take issue with. I hope that we, myself included can take issue while still conveying a tone that is none judgmental. A tall order, I know. Having said all that, I was a bit surprised that it took almost two full pages before someone mentioned (what to me was clearly) the elephant in the room.
  22. 1 point
    Interesting you say that. I've been feeling that my pedals are tilted more rear than I like them, but I just thought I was being hyper critical. I'll put a level on it and see. Unfortunately I can't remember what angle I like. I'll assume level, for now. EDIT. Well doesn't that just take the biscuit! I measured my pedals at a 2 degree lean.... forwards. I think I'm losing my mind. About electronic gyros, I believe every manufacturer uses the same gyro, or similar gyros, and the term "drift" has come up before. I believe over time they all drift a bit.
  23. 1 point
    It sounds like everyone needs to recalibrate their KingSong wheels. I calibrate mine every few months. They tend to start leaning back more than I like over time. I calibrate as described above.
  24. 1 point
    I agree it's great the rider was wearing good gear to protect him from the crash. However unless I missed it, why is nobody talking about avoiding the crash in the first place by riding more responsibly? Holy shit, cars on the left, pedestrians on the right and in a group ride in close proximity of other riders.... and the rider is pushing an MSX to cut out speeds. I must just be the crazy one that thinks about these things.
  25. 1 point