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Showing content with the highest reputation on 02/06/2019 in all areas

  1. 5 points
    When I am riding alone people think that I am some kind of super balance freak. There is no way they could do it! When I ride with my wife and daughters. They think, Hey!? , If they can do it maybe I can too. So the trick might be to get woman to take up the EUC. The logic that men are quicker to learn IS flawed. Yet when people see woman riding EUC`s the idea of trying them is less intimidating. The nuber of females riding EUC`s in my area remains higher than males.
  2. 5 points
    Last May I got my first wheel. I thought I could catch up to Marty. May 2018 Score: : @Marty Backe 7 wheels RockyTop 1 wheel ( 6 wheels behind) Feb 2019 Score : Marty 11? Wheels RockyTop 4 wheels ( 7 wheels behind)
  3. 4 points
    Great writeup / teardown by @EcoDrift, per their usual. Interesting to see the secret of the MCM5 being wider magnets, wider than those of the MSX & Nikola's motor. https://ecodrift.ru/2019/02/04/gotway-mcm5-part-two/ Gotway MCM5 (motor/controller), MSX (motor), Tesla (controller) Today we will study the main components of the Gotway MCM5 monowheel, and at the same time we will look at the MSuperX engine and Tesla controller. First MCM5 engine. This is an engine for a 14 ″ tire (bicycle size), although the native rim diameter is 10 ″ (automobile size). This is important in the selection of motorcycle tires, the dimensions of which are considered to be automotive standards, not cycling. The engine turned out weighty: 7kg with nuts and washers: Washers, by the way, are not needed, but the engine is separately supplied with them. Instead of washers, a large platform is now used, which protects the engine from turning. View of the engine from the end: It is really very wide. Wires are short: Marking (manufacturer: HB, production date: April 2018): Remove the engine cover: Open: The winding is tight, but not too neat: All engines are wound in manual. But the winding is quite dense, nothing dangles. Bearings in caps with a size of 6203 (this is important, since 6202 is usually put on 14 ″): Interesting surprise: The width of the magnetic 3.5cm. This is the widest engine that we met in monowheels. This means that the power available here is much more than in any other 14 ″ models. For comparison, the core Gotway MSuperX (MSX): The magnets on the rim are also 3.5cm: Magnets, unfortunately, not the best quality. Covered not with pure nickel, but with a cheaper nickel-copper alloy (yellow tint). Some magnets have traces of dirt, scuffs and even chipped. Do not forget that such a rim must be varnished before active use in wet weather to avoid corrosion of the magnets. Compare the wheel rim of the year 2016 with the MCM5, launched in 2018: Top rim from Inmotion V8. Magnets are covered with nickel, no chips were detected. But even visually it is clear how much such an engine is weaker than a modern monowheel. And now MSX (MSuperX) and its rim: 3cm magnets: The engine is very similar to the Nikola engine, which we disassembled at the end of last year. This is understandable. After all, 18 ″ differs only in an increased rim. The magnetic circuit is exactly the same as the number of magnets: 56. The winding is dense, nothing dangles: On the other hand, there are visible hand-wound flaws: The width of the core is the same as that of the magnets, as it should be: And now the controllers. The MCM5 controller was the first among the Gotway monowheels to be produced with field-effect transistors in large packages (TO247): Such a housing improves heat transfer and increases controller reliability. And the MCM5 and MSX really had no problems with the power unit. The reverse side of the radiator, on which the field-effect transistors are cooled: 4 capacitors: Marking close-up: The controller with a maximum voltage of 84V, so there are capacitors with a small margin of 100V. Bluetooth module for communication with the application: View from the end (you can see how the power transistors are located): MSX controllers are still equipped with the same field-effect transistors. And it is not yet clear whether Gotway will not switch to others, those that stand in Nikola. In the meantime, look at the controller from Gotway Tesla: Back side: Immediately installed fan: Two capacitors: Marking large: The board has 12 field effect transistors in a small package (TO220): Bluetooth card hid under the fan: In the next part, we will look at the MCM5 hull elements.
  4. 4 points
    Finally I've also joined the "Full Face Helmet Owners Club" with my brand new and yet unscratched Fox Rampage Pro Carbon: '
  5. 4 points
    I think EUC's will start taking off among the general public in about 20-years. Why? Because a lot of us are in the 50 & 60 year age bracket. Assuming that we keep riding, in 20-years time there will be a lot of 70 and 80 year old dudes (and some dudets) riding around, and people will think, "boy, if those old guys can ride those they must not be very hard to ride or dangerous".
  6. 3 points
    I hear comments like that today! I don't have to wait 20 years.
  7. 3 points
    I don't think EUCs in their current iteration would catch, as much as I love my Z10 a $2,000, 60 lbs wheel is not something that a regular person would buy. the cost of entry either have to be incredibly low, ie. Lime and electric scooter. or it'll have to be pitched as a premium product that offer beautiful design, convienence and performance, like Tesla (the car that is). IMHO, EUC will never be easy to get into because of learning curve alone, so the premium path is the only one that'll work for us. And that'll require strong branding, good design and great marketing, none of which any of the Chinese manufacturer have the resource or interest to pursue, and no US company would touch it due to patent issue. nothing wrong with EUC staying neiche, but investment and development will be slow and if the public's sentiment ever turns against us. like the ban on hoverboards, our wheels can turn into expensive paperweights overnight.
  8. 3 points
    Afaik WH/cm³ is worse for ultracapacitors than for Li Ion cells. But their advantage is extremely fast "charging" - so they could be used as imtermediate storage once much energy has to be "taken" like with strong braking. In the table on https://batteryuniversity.com/learn/article/whats_the_role_of_the_supercapacitor is stated that supercapacitors have ~5 Wh/kg and Li Ion 120-240 Wh/kg ...
  9. 3 points
    34 studs was plenty, and the grip in snow, slush and ice over expectations. Even packed snow is now a lot more relaxed and actually quite a lot of fun. I drove over ice patches, packed snow, slush, concrete, cobble stones and asphalt today without a single slip. Speeds were moderate, about 25kph or so, as I tested the limitations and balance of the tire. I have almost fixed the wobble, the method turns out to be inflating it to a v.e.r.y low pressure, less than 0.7bar/10psi, and then pull/push it to correct how it sits - then inflate it to target pressure. In my case that is about 1.9bar/27.5psi or so. I suspect the very fat knobs would allow for good comfort and traction all the way up to the nominal max for the tire: 2.2bar/32psi. And going too low on this tire will make for an awesome rolling resistance on a hard surface, especially with the studs in it. I could probably add another 17 studs to make it grip on wet ice without any slip, but that would make it more uncomfortable where there is no ice or snow. My improvised mudguard works better than I hoped too - no splatter on me whatsoever.
  10. 3 points
    Thanks Marty. There is no controller with the Skydio R1 you use an Iphone, tap the screen of the person you want to follow and it does the rest. You can have it follow, lead, 1/4 or full lateral follow, orbit,, etc. similar to a Mavic but with greater obstacle avoidance. Yes I noticed some of the erratice movements too. At times the drone was following me at 20 mph with 12 -15 MPH wind gusts which is the max this drone can fly in. Also a few times it flew near some tiny branches and then almost took the roof off of an approaching car so the obstacle avoidance kicked in. I still need to attach the Insta360 X to my Mavic to see what happens. I have mount. I just need some time. As you are fully aware....I love experimenting. Edit: @Marty Backe I just learned that the Skydio does not like to fly into ‘low horizon’ direct sunlight. That explains some of the jerky behavior. When the sun is low on the horizon, it can temporarily blind the R1’s cameras depending on the angle of flight. Your R1 may be cautious or jerky when flying directly toward the sun.
  11. 2 points
    I like the 11? reference as we may never know how many additional wheels @Marty Backe has stashed on top of his mountain ( aren't you proud of me that I refrained from using Brokebacke?)
  12. 2 points
    You're ready to go a certain speed when you feel comfortable doing so. So if 30 doesn't feel too fast, it isn't Just don't overdo it. Your first "real" fall should be at a lower speed ideally, so you get grounded by reality without serious consequences. You do need protection, though. Abrasion and more powerful impacts get really bad with rising speed. Your hands and face are very delicate body parts that are easy to fuck up for forever. Good sliding wrist guards, knee pads, a helmet should be a minimum at higher speeds. And be aware, 30 is too slow for "good enough for me" for most people. 35 at least for a 16+ inch wheel (probably more like 40 on an 18 incher, but they do that anyways.
  13. 2 points
    I think PLEVs overall are already starting to make a revolution, but mostly it is scooters. For most people two wheels feels safer, even when those wheels are like 8x1.5" or so and in reality much less safe. The learning curve is also not nearly as steep, even though the skilled rider on a EUC is both more agile and steadier on their vehicle. There are of course scooters that are both agile and relatively safe at speed, but I'm talking the rentals you see everywhere now. But as scooters become more popular, and Segways become eclipsed by cheaper, faster and lighter vehicles, there will be room for EUCs too. Especially if the manufacturers finally get their act together in terms of QC, safety in design, and ergonomics. The latest generation shows some promise, but we still see such shit as KS-wheels locking up because of static when trollying around, NBZ being delivered with "dead" batteries, that need taking apart to get them to take a charge and so on, so we're not really there yet. Also, a simple maneuver, like changing a tire, really shouldn't require you to open up the electrics at all. That simple fact goes to show these things are still mostly for enthusiasts.
  14. 2 points
    Right. In all seriousness, I'm trying to balance being seen vs. blinding people, like we all are. The daytime lights make a lot of sense I find. On the skateboard, where the lights are mounted low to the ground, I don't mind using the flashing lights in the front and in the back, and then I usually have a solid red light on the back of my helmet. I'm not sure what the right balance is with the EUC. The light in the chin guard develops a fairly narrow cone with less light leakage, so I think that's my go-to front light--on full power or even blinking during the day, and on low at night.
  15. 2 points
    It definitely is a, hey look at me, type of wheel which is appealing to a lot of people. I know tons of EUC riders whether they admit it or not like the look at me, reaction EUC riding generates in many situations, including myself.
  16. 1 point
    This year interest & sales of eScooters has surpassed Electric Unicycle sales—this isn't to say that the market for Electric Unicycles is diminishing, in fact Wheel sales were up 2.5x over last year —but with the continued deep pocketed expansion of the eScooter rental business, it's fairly certain that more people will take to Electric Scooter ownership, with a corresponding number of new suppliers/models being released to meet this demand. In the past two weeks, I've launched three new products: the Dualtron Spider, Turbowheel Hornet & the Turbowheel Dart. The Turbowheel brand will be the eWheels branded line of scooters, since the Chinese manufacturer names are both unfamiliar & IMO not the most marketable... During the exercise of launching these new scooter lines, it had me thinking that there should be some sort of broad classification of eScooters for prospective buyers to have a sense of where a particular model falls into. Similar to what we witnessed back in 2014-2015 for Electric Unicycles, where >80% products were pretty dreadful 16 cell, 350W machines, most of the scooters being pumped out of China are the 8" <300Wh, 250W feeble eScooters that won't last more than a few months on the rental circuit—in the Bloomberg article, it was claimed the average replacement rate is less than four months. There's quite a few other differentiators beyond just the wheel diameter, single/dual motor setup & speed, such as braking capabilities, whether they have branded battery cells (most of the cheap ones do not), but there is a rough approximation between Scooter quality & its performance. What do you think of these classifications? Are 10 categories sufficient to capture the different classes? Class 1: Cheap carbon-fiber scooters Class 2: 8”, <300Wh, <30kph. ES2, Xiaomi 365, Stryder (280Wh), Gotrax GXL, Swagtron 5 Class 3: 8”, 300-600Wh, >30kph. ES4, UScooter V/S+, EcoReco L5/L5+ Class 4: 8”, >600Wh, >30kph. Mini4, T8/Zero 8 Class 5: 9”, single-motor, >600Wh. Dart/T9/Zero 9. Class 6: 10“, single-motor. SW III, IV, T10/Zero 10 Class 7: 8”, dual-motor. Hornet, DT Raptor Class 8: 10“, dual-motor, ultralight. DT Spider Class 9: 10”, dual-motor, >1kWh. DT3, DT2, D4+, D5+ Class 10: 11”, dual-motor, ultra-wide tire. Thunder, Ultra
  17. 1 point
    Shamelessly promoting my latest video here even though i posted it in "Reviews" already. Thought you guys might enjoy it here too. https://www.youtube.com/watch?v=OXrtH9lqomY&amp;list=PLDOfnfEk0BeUs6uzkMvikDyhf0691SbR6&amp;index=2
  18. 1 point
    Sneaky bastard, isn't he? BTW, since your wheels seems to get kids all the time, which wheels are the females and which are the males?
  19. 1 point
    We use a walker modified to have four wheels for getting people started, as seen here: It works very well but we have to tell people to slow down, they quite often want to go faster and faster before they have learned to do anything at all on the wheel. The only drawback is, well, it's a walker, and associated with old and decrepit. For this reason we will paint some racing stripes on it (or do some other aesthetic mods) for sessions this year.
  20. 1 point
    Thanks. I'm not planning on doing a masters thesis on this , just thought it would be interesting to see how far some of these wheels/riders have traveled. To share with everyone.
  21. 1 point
    @Girth Brooks darwinawards.com
  22. 1 point
    Put the bottle down, you've had enough for one evening.
  23. 1 point
    Hmmm Marvel or DC.... who signs the wheels man instruction manual..ehh comic book with Mr @Marty Backe himself 😉 and t-hurt @Rehab1 the modder and costume design from @Hunka Hunka Burning Love t-shirt limited.... Guest appearance of @winterwheel and silver surfer of SF bay...(the wind surfer dude, again me and names, not working out)... Man what a hero list and new once keep appearing every quarter. 😁
  24. 1 point
    I'd say five-ten years because little kids think these things rock and are going to want them when they get older.
  25. 1 point
    Yes that was the scenario. I looked back at the snow run I shot with Skydio a few weeks back and the footage was smooth but there was clouds and no wind that day. The battery life on this drone is suppose to be approximately 18 minutes but I only achieved 12 minutes due to the cool temperatures. I always encase my spare batteries in a thermal bag with a hand warmer but once they are exposed to the cold their charge capacity diminishes. Hopefully the battery life increases when it turns warmer as spares are expensive. Yes the cost. I could have purchased a new wheel and then faced the wrath of my wife or purchase a new expensive drone a still face the wrath. The latter appeared to be a bit safer for my longevity so I chose that route.
  26. 1 point
    Oh! This tire is made for a max pressure of 32psi. It is stiff as a board, and almost doesn't deform under the EUC weight even when there is no pressure at all in the tire. Even at 27psi, there is no real tendency to deform when turning. It's basically a whole different animal from the standard street tires.
  27. 1 point
  28. 1 point
    @Nic After your comment about James Bond, I did a quick mental review of Bond gadgets. It's quite revealing. Bond Gadgets and accessories Auto gyro: Still around, but very much niche Jet powered mini boat: very darty in the film, just a prop really, no one's actually making these, although conventional jet boats are still popular in the US and other warm water communities Wet Bike: Consigned to history's garbage bin, Jet ski style was way easier to learn and ride, so it won. Mini Jet: Only a kit really. Only one or two in existence (DB7) I think. Only for experienced pilots anyway Car that turns into a submarine: Prop Omega watches: still around but not exactly setting the world on fire. Vodka Martini, shaken not stirred: I've never had one, have you? Parahawk ( a powered parachute) around, available, but again a niche market There must be others, that I can't remember. Based on the above, ironically, if you want a product to take off the last person you should give it to is James Bond.
  29. 1 point
  30. 1 point
    I am quite concerned about your health, as staying on an EUC in difficult riding situations is a skill you are not likely to have after a week or even a month or two. Going down at 30km/h is not a gimmick at all and can lead to severe injuries much more likely than at 20km/h. Apart from being illegal, I can only strongly recommend not going that fast before to have ridden a few thousand of kilometers. Of course I can't make life choices for others.
  31. 1 point
    I think PLEVs are going to take over the world if we let them. EUC is one of the best, but not suitable for everyone. Smartphones were never illegal to use, PLEVs are and this was a big factor in Segway failing to become popular. Segways also made the rider look lazy and they aren't seen as 'cool' ... too slow, heavy and expensive. Laws need to change so that more of these vehicles are seen on the road and then mass adoption will start. Prices need to come down too, but other types of PLEV that are cheaper to manufacture will help here. The push towards green policies to stop global warming and pollution will help drive the market for cleaner, more efficient transport. The government need to stop introducing laws that limit speed to overly low level that nullify the benefits of powered transportation. We don't put speed limits on cars, just on roads. How many Ferraris would sell if they couldn't go faster than 70 mph?
  32. 1 point
    The Z10, I affirm that it does not turn, it is a joy, because the one that turns is not the wheel, it is you, with the other wheels, to twist the foot of the turn and the wheel turns, you are only correcting that turn. The Z does not twist, you are the one that twists, turning only when you want, not when you want the wheel. It's just getting used to the change
  33. 1 point
    EUCs require near absolute control or else you fall off. Even riders who say they aren't confident riding at slow speeds in crowds are actually quite capable of riding at slow speeds around crowds, because just the ability to mount requires some advanced skills. In contrast there's lots of people crashing on 2 wheeled Segways. My favorite is 2:10. However, I don't think a single person was actually hurt in any of those crashes.
  34. 1 point
    Cool. So basically you were riding towards the Sun on a windy day - obviously challenging. So you should be able to get some nice smooth shots on a calmer day. The simplicity of that drone is very appealing - seems perfect for EUC rides. Very tempting. That cost though
  35. 1 point
    Ps! I haven’t pooped , my pants have ripped,,honest😩😁🤪
  36. 1 point
    @Chriull I actually had a call with Chris and like to make some things more clear here, sorry for my poor english and my probably lack of technical knowledge and english terms...but here we go: The KS BMS HAS control over the single (or dual) cells and actually stops single cells from overcharging at exactly 4,24 Volts. The problem from the thread opener is actually that he charged his battery packs by circumventing the overcharge protection. Seams he has gone over the “power outlet” cables(red and black)...instead of going over the “charge IN” (blue and red). With doing it like this there is NO overcharge protection anymore (and so no correct balancing happens)...it can not be overcharge protected this way...imagine you make a hard brake on nearly full battery, then you would directly faceplant, if there would be a small overcharge. But..if you use the “normal” charge port and charge cables there IS a overcharge protection, and yes, it is for single (dual) cells... ...and for these “bleeding” ....i am actually asking one more, but as Chris hardly stated the BMS to stop on single cells i doubt that this is a possibility. Other things: And yip, it was Chris who -at the time- revealed that the 9b eplus had no balancing at all on the board.....(and he also berated KS on a lot of things to make their products better). So Sorry..... Chris really would like to, but just hasnt the time to be more often here and answer all thise specific questions :-) He is busy with his shop and likes to be more on the practical side of things... :-)
  37. 1 point
    I wonder if motorcycle/bicycle forks are a good corollary for our legs on a wheel, just because I feel like I wouldn't be able to ride 10 feet if I replaced my legs with rigid steel rods. My thought has been that the wheel's gonna oscillate for whatever reason -- natural imbalance, surface issues, what have you -- and when you're clamped onto the wheel those oscillations translate directly to the person riding, so he/she is oscillating too; panic/imbalance ensues, followed by unplanned dismount. With unclamped legs the wheel can do all kinds of things, including oscillation, but I can generally recover because my legs aren't forced to be a 100% participant in whatever unhappy adventures the wheel is trying to impart. That said, I only have experience with one type of wheel really, that has enough power to get up into dangerous oscillation territory, so not an expert by any means.
  38. 1 point
    Commute this morning -33c, my new record. Definitely feeling the cold by the end.
  39. 1 point
    Targeting kids and making an EUC the next “rite of passage” similar to the bike is good and all but we need to do something about the safety of an EUC first. Kids notoriously push the limits and have no concept of consequences. One cutout on their precious child and mom’s everywhere will have these things banned.
  40. 1 point
    I'm not the author ( @OliG ) of this photo but The MSX in the left it's mine...
  41. 1 point
    I've moded a second nb this week, made the handle mod a bit easier this time around, and took some pictures if one is interested.
  42. 1 point
    I'm not sure if it is available where you are, but provided you aren't too heavy and don't ride at top speed, the King Song N1B should be able to provide that sort of range.
  43. 1 point
    Clearly Disagree. @Marty Backe and @Duf videos are informative, and demonstrate the experience of living with a wheel and tolerances. @KujiRolls videos feature more extreme tests of specific features. The videos serve different purposes and all are valuable. As much as I enjoyed @KujiRolls videos, I could give two shits about which wheel had the firmware programming to make it up that steep incline he tested. I will never put my wheel through anything, anywhere near this extreme. I do understand how important these tests are in helping us to understand the characteristics and behavior of each wheel. So, while I don't care about every single metric for my purposes, I am glad that all manner of tolerance and behaviour tests are conducted. I am interested in the wheels, but more important to me are people's experiences with them. I don't need every single video to be wheel pornography.
  44. 1 point
    I've been in marketing for years and I agree with most that 10 classes are just too many. Especially since you only actually have a single option in some of the classes. If its really that complicated, a simple "selection" tool might help. They choose distance needed, their desire for speed, their body weight, etc... Then you could provide options like "good long distance option" or "best for distance", "lower price".... This would also give you an easy way to ask for an email address to help build your email list (could be optional towards the end as they are already warmed up to putting in info). There is gold in the email list :).
  45. 1 point
    Oooh that's just ridiculous , i use my euc to go everywhere if i can it saves using the car, I've not had any bother off the police they just look, so the country has got to try cut down on traffic and bump the prices up on fuel to combat this , now that alot of pevs come out they just want to ban ,,i hope you get it back
  46. 1 point
    You're kinda being an asshole because 1. contributes incomplete info without reading previous posts, and 2. calls people stupid and young without anything else. Those are simply insults whose purpose is to make you feel good at the cost of making others feel bad. While @Darrell WeshWesh and I disagree with each other (sarcasm notwithstanding), we tell each other why we believe such thinking is faulty, or perhaps modify our statements accordingly. That is the difference between a destructive versus a destructive argument. Do you think you have ever convinced someone by telling them they are stupid? Next time a cop pulls you over for an infraction, call him stupid and immature and see if that convinced him.
  47. 1 point
  48. 1 point
    At first I thought that I could be of no help because I know nothing of these scooters. Then I realized I could be the dumb guy trying to figure it all out. My first concern would be quality. I hear that these things have I high mechanical fail rate. Size would not be as big of a concern as quality. I know that larger batteries used less aggressively will last longer so I would get larger batteries. I am lost after class 5. Then the tire size and duel motors cause a split. It would seem that the DT is on a level of it's own. Do the classes continue upward in speed and distance? ride quality? build quality? $$$$? I would prefer a three number system: (1-10 on quality )( 1-10 on weight and distance)(1-10 on speed and acceleration) ride fits in somewhere. My buying process: 1) Drop the cheap less dependable units regardless of capabilities. 2) Calculate my smallest distance and speed desired. also minimum battery in general (over usage) 3) See what I can get for the money compared to enjoyment As I said, I don't know what I am talking about. Thanks for all you do for us Jason
  49. -1 points
    Boy this thread got really stupid fast. Who let the kids in to the over 21 lounge?
  50. -1 points
    My sincere apologies. My intent was entirely light-hearted, just poking a little fun at an off-topic side discussion. Routine in discussion groups. Sorry I was an asshole, although I personally think name-calling with vile epithets in a public forum is a far more serious transgression. Those are my standards. And my apology for what I did is entirely sincere. As a relatively new member, it's helpful to learn who's sensitive on the forum. I promise @LanghamP and @Darrell Wesh I won't bother you again.
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