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Showing content with the highest reputation since 03/24/2018 in Posts

  1. 27 points
    Since receiving the V10F about two weeks ago, I've put on 200km distance on the machine & have to confess I simply love it! One of the first things an experienced Rider will probably notice, is that between the 2.5" wide tire & high pedal height of 17.2cm (6.7"), it has the feel, & many of the ride qualities, of a 18" wheel. For additional control, hugging the sides of the Wheel with your calves feels very comfortable, probably the best ergonomics of any other Wheel. Inmotion have really pulled out all the stops, listening to their Distributors & Customers in trying to make the V10 the best possible 16" Wheel that would satisfy the demands for majority of their Customers. For years, Riders have been crying out for larger pedals, a brighter headlight, cut-off switch, travel handle, speakers (well maybe not everyone for speakers), all of these features have been crammed into a body that is only a couple cm taller than the previous generation V8. I'm inclined to believe that given the constraints of the volume that the V10 occupies, it's difficult to see, at least without some major breakthrough in battery energy density technology, or commercial room-temperature superconductors, how an Electric Unicycle can be dramatically improved based on materials that are available to Engineers today. What There is to Like About the V10F: Power: based on my limited ride time, the 2KW motor has that same effortless glide quality as the GW Tesla/ACMv2, but you do get a couple degrees of tilt-back as you approach around 35kph speed as if to remind you of your mortality. If you push beyond this, at 40kph there's a klaxon warning before the tilt-back gets more aggressive. On low battery, 40%, the speed is reduced to 35kph, haven't run it down below this yet. Tire size: one of the first things I did on taking possession of the V10F, was to take it on a gravel track. As you can see from the picture, there's plenty of clearance at the lip of the shell, but within 20 minutes, a small piece of gravel did become lodged between the shell & motor; a small stick did the job to remove it & I was back on my way within minutes. To take full advantage of the wide tire, I'd recommend riding at a lower pressure than you would do on a 2.125", it becomes much more forgiving, stable & enjoyable. Pedals Size & Height: the total surface area is 30% larger than those on the V5/V8, giving more foot support & as @houseofjob had pointed out, these are the largest pedals of any other Wheel right now! There's mixed thoughts about the rubber surface material. I've ridden it quite extensively in wet conditions, whatever synthetic compound they used still provides excellent friction in the wet, hadn't found slipperiness to be a problem. Slim Profile: another unique property of Inmotion's Electric Unicycle is the location of the battery pack in relation to the motor. On all other Wheels that I can think of (with the exceptional of the IPS i5) the batteries are installed on either side of the motor; this necessarily makes other high capacity Wheels fatter than Inmotion's design. But isn't just about the width, the location of the battery has a direct impact on stability as well. As another reviewer of the prototype has recognized, the V10F feels a much stable than other Wheels I have used. My theory is that the narrower distribution of weight will be channeled directly down to the supporting tire, which will probably mean less of the wobble effect. Super-bright Headlight: it's the best headlight that I've seen fitted on a Wheel; has a downward direction to it, so doesn't blind oncoming cyclists from afar. The Chameleon: whirling animated LEDs might not be everyone's cup of tea, for drawing attention to oneself, but in Inmotion's quest for technical superiority, they've taken the stand ring & multiplied it by three, as it can be easily disabled, what's there not to like about this! Beauty Contest Winner?: there's no denying the power that the aesthetic quality plays in a Buyer's psychology when making a high-valued purchasing choice, especially first-time owners. Minor Annoyances & Issues on the Prototype V10F : Amount of Travel in the Handle: for me, this is the single most significant technical problem on the V10, there's way too much lose movement in the handle. Although it's identical to the V5, because the V10F is almost double the weight, when you're handling it on surfaces like carpet, it's hard to have firm control of the Wheel's direction. Technique of Wheeling it backwards helps, but Inmotion need to fix this for mass production, a couple washers might do the trick, haven't had a chance to test this out. Default Speaker Volume too Loud: because the speakers are so powerful, it doesn't appear that Inmotion adjusted the configuration to account for the more powerful speakers. At least on the prototype, the alerts are piercingly loud. You can use the previous version of the App to reduce the volume of these alerts. Default Pedal Pitch Angle: although the App represents pedal angle as being 0°, you can see a slight backwards inclination, this is evidenced when the Wheel is placed against the side of wall you get a significant amount of motor whine. In the App you can readjust this, found the sweet spot to be 3° forward. Width of the Self-Standing Support Struts: the self-standing supports on the V8 were a nice extra touch, you have this too on the V10, but the dimension have not been scaled for the larger Wheel. It is not yet certain if this is improved on the production shell mold. Side Padding Adhesive: given assurances that this has been changed on the production Wheels, but in my prototype, the pads kept falling off, had to resort to gluing them permanently in place. Charging Port Flap too Tight: I found that if the flap is fully closed, it can be difficult to pry it open without the use of a tool, the quality is really great, better than previous V5/V8 designs, but the practicality of opening it can be a challenge. Difficult to Fold Pedal Down with Foot: If you loosen the small tightness screw it's easier to undertake, but because of both the curvature of the pedal edge & where the shell meets the pedal, it's not easy to get a foothold to push the pedal down from the upright position. Getting a grip around the handle is manageable. Even though it's compact, at touch above 20kg, it's heavy & feels heavy too! If you're planning on carrying this up a couple flights of stairs during your morning commute, you'll need train up to be in a fit state to carry it. You can see how bright even the rear brakelight is. There's a high-def speaker fitted front & back (two for stereo). Notice the small arch support, standing upright on anything but perfectly flat surface is going to be unstable. Renders always look gorgeous!
  2. 18 points
    Some impressions from today's ride. Nice weather - clear sky, sunny and warm up to 15°C, just a little windy, but nice views! 68km (says the wheel) / 60km (says the GPS), and battery from 100% down to 11% Here's the route, it starts at the right. Read the circular part clockwise. Bike paths along a river pretty much all the way to where I turned around, then a little detour north along some hills, and then back to and along the river. View from the hill where I turned around (all photos are from the way back). Hard to see with the shitty phone camera, but very nice views of the snowy mountains. Deer in an enclosure. A bee got into my collar while riding and stung me (guess it didn't get out due to the wind and got desperate). Quick diagnosis photo I made, as I was worried the entire bee would still be attached. You can see the leftover stinger. Nice views on the way back along the hillsides. Tiny, scenic village. Horse farm with horse bust Purple spring flowers. Fantastic colors, wish my phone made better pictures, looks much nicer in reality. Pond with a view. More mountain views. Weihenlinden church (just some random church along the way, but nice ensemble). More mountain views. Back at the river. Mainly photographed this for the colors. The sign and memorial cross tells us not to swim here, as some 14 year old boy died here in 2016. Spring! New housing along the river. River path.
  3. 18 points
  4. 17 points
    I recently got back from a short 4 day visit around the Shanghai area. The first port-of-call was the IPS office in central Shanghai: I was greeted by Yueyue, (the sales contact) & Zhangxin, who runs the R&D Operation. During our ride from airport, Zhangxin told me about the absurd restrictions that Riders face in China, mainly in the cities of Beijing & Shanghai, where one is permitted to ride a 300kg lead-acid battery Scooter on the pavement, but the moment you're caught using an Electric Unicycle, you face an immediate fine, possible confiscation & the traffic warden will take a picture of you so that on the subsequent occasion you're catch, the case goes to court. And these are THE two cities in China most plagued by congestion. Anyways... the reason this is relevant, is because Zhangxin uses depends on an Electric Unicycle to commute with, in spite of the repressive anti-EUC regime, so a big kudos to him—at no other factory that I'm aware off, do the Sr. Management rely on Wheels to get about. They gave me short presentation of their new 14" Wheel, which will be complementary addition to the I5, known as the S5—pictures to follow in a few weeks, when it's officially announced. For those wanting to have the 'Safest Wheel', or one that might meet a future European criterion for safety, this may be the Wheel for you! Single Wheel but with two completely independent motors Dual battery pack (consisting of 32x (total) 21700 cells) with separate inputs to the board A board that is fault-tolerant & can take a single MOSFET failure, because the two motors are working independently of each other Magnesium alloy shell that's built like a tank, 3.5mm thick, vs. 1.5 on the i5 Probably the best App of any Wheel manufacturer, no social non-sense just what you need for configuration the Wheel & viewing vital stats What's particularly cool about the S5 interface, is that because the redundant systems run completely independent of each other, the power, battery, range stats are shown on two columns, you get a complete insight on what's going on inside I think it's quite an attractive Wheel, think of the I5, but thicker with tastefully furnished LED strips running vertically on each corner There's supposed to be other advantages to having a dual-motor, increased torque over a range of RPMs (presumably because the combined stators are wider) & a greater efficiency Weight is around 15kg, considering all the built-in redundancy, this is quite an achievement Then there's the BMS: this thing has temperature sensors, each of the cells voltage is monitored separately in the App, also incorporates a lot of scenario protections for reducing the risk of fire or other mishaps
  5. 15 points
    Long time no post, hope this one won't disappoint you! We at EUC.NYC just got 3 out of the total of 15 units produced so far of 100V GotWay Monster (22" for those who aren't in the know). We didn't waste any time and the Unboxing and Review videos are up on our YouTube channel (please support us by liking and subscribing). SPOILER ALERT: Free spin test speed has turned out to be 52.9 mph (with battery half-empty).
  6. 15 points
    Not my video, but from our group ride in Scottsdale last Sunday. We did a lot more off-roading than the video shows and the 14" wheels all did very well. This was an experienced group of riders.
  7. 14 points
    My V10F and i in Paris. 😍
  8. 13 points
    Recco, Italy group ride. It was a nice sunny day, we started from Recco in the italian region of Liguria where you can taste the best focaccia ever, we climbed a mountain and ended up in Genova and after lunch we went back to Recco. It was a total of 65 kilometers of pure fun
  9. 13 points
    Here's a longer-form video where I show my typical Venice Beach riding with some commentary along the way
  10. 13 points
    Hi all! Just wanted to give you all an update! It's been really fun debating the merits of different starter wheels for a potential slowpoke like me. I just went to check out Mark's V5f+ and he showed me how to ride it. What a great guy! Had soooo much fun, just had to buy it. Now I can't wait to zip around the city!! Again, I wanted to thank you all for your wonderful advice and let you know how much it helped me make my decision! ~Diana
  11. 13 points
    At State Highways Authority. We got our priorities right
  12. 12 points
    We shared some story behind InMotion and Solowheel, please check it out here: https://www.myinmotion.com/blogs/news/the-story-behind-inmotion-and-solowheel.
  13. 12 points
    Had the chance to try it for 1 minute today, amazing wheel, feels super thin between the legs! Great power! Agile as duck!
  14. 12 points
    Hi guys !! I just wanted to talk about the new MS3T 84V 1600Wh which has the mechanics & motor of the Tesla, 1900W. It's the same generation as the ACM2 of @Marty Backe. It is not my EUC but my friends. Let me just way....WOW this EUC is IMPRESSIVE !!! I have tested the MS3 67V 820Wh & the MS3s+ 84V 1600Wh, man it is a different wheel ! First thing, the MS3T is silent, much more than the Tesla itself, at standstill there is absolutely no noise, when you move at 30kph their is a slight noise but it's almost inaudible. It is a stealth EUC Regarding it's handling, it's more stable than the original MS3, it has much more power, and it is more stable but also more reactive ! The power that comes through is linear and gives a feeling of endless power, unlike on the original MS3. The algorithm is not "tesla like" it's hard, maybe not as hard (due to the wheel diameter imo), for me it's perfect. The manoevrability is better than on the original MS3, not as good as on the Tesla, but still a very agile wheel, and the height of the pedals is good so they don't get scratched as often. Regarding the speed, I reached 54kph (real speed), no beeping ! This EUC is insanely fast !! When I lift it up, it cuts off at 74kph (compared to the 59kph Tesla cut off) I think it's the fastest production EUC. Overall I like it more than the Tesla and the ACMs+, If the weight was a little lower, I would say this is my favorite EUC, the most impressive part is the silence, even the older MCM2s was louder than this EUC.. Have you guys tried it yet ??? From left to right : DT Ultra, MS3T, GT16, ACMs+, Segway I2
  15. 12 points
    Here's a group ride from early December 2017 (I have a video backlog I'm trying to work through ). I was joined by @Jrkline "Wheel Whisperer", @YoshiSkySun, @n2eus, @Sketch, @Williepimpin, and Sean.
  16. 12 points
    Yes, it's relevant, a mosfet that has failed in "open" (non-conducting) position won't cause any rotating resistance on the motor, whereas "closed" (conducting) position will cause the resistance when two phases get short circuited together. The terms "open" and "closed" refer to the circuit loop here, and only closed loops conduct current, probably you termed it the other way around. But even then if only one phase is closed (conducting) and the other ones are open (non-conducting), it wouldn't cause any resistance, it has to be two (or all three) phases shorted together, so that the motor windings create a loop "between themselves". However, this will likely happen as the controller tries to keep driving the motor when a mosfet fails, since one of the phases is continuously shorted to either the negative or positive rail, once the controller switches the conduction of one of the remaining phases to that same rail, the phases get shorted together. There's a bunch of alternative scenarios that could happen there (like a shoot-through when the opposite mosfet in the same half-bridge starts to conduct, strong braking current and/or back-EMF voltage spike when two phases short together in full conduction), but likely when one mosfet fails, the chain reaction following in the next split second destroys more of them, leaving two or more phases shorted to the same or both power rails, at which point you'll notice the motor is braking even when the wheel's otherwise turned off. The problem is that there's nothing except those mosfets that prevent the two phases of the motor from being connected together, and once the mosfets have failed in conducting state, removing power from their gates has no effect (as you've likely noticed, the motors resist turning even if you turn off the wheel or remove the battery, it's the physical connection between the motor phases). If there are two boards and one of them fails shorting the phases, cutting power to that board won't do anything, it would have to be able to cut the short circuit from the motor phases, otherwise the failed board will keep the motor braking while the other one tries to drive it. There would have to be more complicated and elaborate bridge and board design, allowing the failed board to cut the the shorted motor phase loop (actually, disconnect all the motor phases from the failed board) and give the control over to the secondary one. I don't think fuses or relays or such would work, fuses would likely be too slow, by the time it would blow the motor would already be braking hard and you'd loose your balance, and/or using fast fuses, too sensitive, blowing under normal driving circumstances due to a high power spike, like fast acceleration from standstill or accelerating up steep hill. Normal mechanical relays would cause faceplants just on their own, as the contactors would bounce around during normal vibration and knocks on the wheel, cutting the power by themselves. A simplest one I could come up with a moments notice that even has some theoretical chance of working was to use secondary high- and low-side mosfets, that are normally kept conducting, but in case of failure, they would be used to cut the failed mosfets from the loop. "Normal" half-bridge with single high- and low-side mosfets on the left, secondary mosfets in series on the right (the high-side secondary might be P-channel to ease gate drive voltage requirements). Still, this is far more complicated to actually implement in real life than shown here, there needs to be a fool-proof way of detecting the failure of either low- or high-side mosfet, so it won't shutdown just because there's a sudden "normal" current spike there, and it needs to shutdown the failed half-bridge fast. Secondary bridges (or entire secondary board) would then have to take over in a split second to prevent faceplant without any sudden braking/acceleration/coasting of the motor. The secondary mosfets could also fail at the same time if it's a shoot-through or similar, the parts cost goes up since the mosfet count is again doubled (and they're the most expensive part of the board, maybe not singly, but since you'd need 12 instead of 6 or 24 instead of 12 them), the software becomes much more complicated because it needs to monitor and make "smart" decisions what is actually a failure and what is just normal spike, how to turn over the control to the secondary board etc.
  17. 12 points
    This video is posted all over FB and gaining views on YouTube . I’ve gone on his FB posts and asked him kindly to remove the video. He might see this as “cool” or “informative “ or just a way to get seen, it’s none of these. It’s down right stupidity. FB and YouTube are gigantic social platforms viewed by millions of people . This video paints us all in a bad light . Look at how other countries are already cracking down ! Here in the US we are fortunate to not have any strict laws being imposed upon us right now . But videos like this can make that all change drastically. Blowing through a stop sign while swerving all over the road and damn near crashing into a Porsche is not how I want this sport portrayed to the general public ! I’m so angry right now . This guy has no clue the harm he could be doing . And you know...maybe nothing will come of it . But damn Ron , use some common sense . End rant .
  18. 12 points
    While i agree on the safety (and Quality) difference between KS and GW, i would blame this fall/Crash here totally on Ron himself! When he released his first Tesla Review Video, i allready thought that this guy will faceplant in the next foreseeable future. Even as a 2 week newbie he was testing the Tesla driving wide over 30mph with his Family driving nearby shouting "Go Go Go"....was just a matter of time he had a cutoff and if he didnt Change his driving style at all it will not be his last! It is just not "respect the beep"...and printing it on his hoodie and selling that, there are several other factors, and it seams Ron didnt learn anything from his fall. Like you and others pointed out, low Batterie or a hefty Speed bump might lead to a cutout also, even when you are not "riding the beeps". Or to high set tiltback might lead to disaster also! I am happy he wasnt seriously injured, but man, it is just stupid behaviour! And showing this Video on FB, Ytube and elsewhere is also not helping!!! In a lots of countrys People are fighting for the right to drive this wheels...such a behaviour, like riding with such a crazy Speed, geared up like it is the dangerous sports ever, and than even faceplanting and crashing the wheel into the bystanding cars...this will not help with EUC acceptance. Not a bit.... Pre-Ordering/Selling T-Shirts/Hoodie because the attention this fall gets??? .....makes me really speechless!!! Rant over.
  19. 12 points
    1 month since using the silicone patch over my incision. I think it is working.
  20. 11 points
    One issue I have now that I'm getting into EUCs is that my "outdoor time" doesn't net me much exercise. Yes, there's fine muscle control, there is SOME exercise involed, but nothing like spending the equivalent time (or distance!) walking, or biking or running. One solution is to just extend my "outdoor time" each day to *add* EUC time to what I already do. But I don't always feel inclined and/or able to do that. Enter the IPS i5 and the backpack I bought that can hold it (discussed in an earlier thread). I put the EUC in the pack, plus my folding helmet, maybe wrist guards, and slip my little "sit on the side of my glasses" rear view mirror unit in my pocket and I go out for a long walk. At the end of where ever I want to get to, I take out the EUC and ride it home. This hybrid approach is working well for me. It has the side benefit of getting parts of my body up to speed for hiking/backpacking season. The 20 or so pounds that I'm carrying delivers a little more exercise on a per-step basis on the way out. But long walks can get a little time consuming, even boring at times (podcasts, music help). So while I'm hiking out and schlepping the weight on my back, I can look forward to the fun of riding back home and for the distance traveled out, the total time required is reduced over walking both directions. This also makes this "last mile, commuter" EUC something I'm more used to using with the backpack. A couple days ago I hiked to a local drugstore, carried the pack in, no questions asked, made my purchases, then I had an empty backpack to carry the things I bought back home. Tomorrow I have a medical appointment a few miles away from home. My wife will drop me off as she's heading that way, but I'll bring the EUC in its pack and ride it home after. Anyway, I'm enjoying this approach. Of course one could do this with a bigger, heavier EUC, with the caveat that I like to walk on trails as well as sidewalk and gravel. Yesterday I was hiking some wet, somewhat muddy and steep dirt trails that I wouldn't want to even push an EUC up or down (even with the unit powered on and the extension handle deployed). And in general it's nice to walk with both hands free, not having the herd along a rolling EUC companion. Having to push along a bigger EUC just makes for a different walking dynamic. It's okay when you need to do it, but not the kind of walk that I enjoy. Okay, sorry for going on for so long --- just thought I would share this idea.
  21. 11 points
    Aren't we all tired of the dribble of information? At least I am. I understand it's all about building anticipation for sales, but I've lost interest for now. Maybe in a couple of weeks when actual information exists my interest will peak again.
  22. 11 points
    I can finally put a coat on by myself after 7 weeks post op but what can I say...it hurts. Baby steps.
  23. 11 points
    Trying out my camera stick I found. Didn't get the hang of filming with it just yet, but here's a video from a local trail.
  24. 10 points
    Let me introduce my new machine! I am an enthusiastic customer
  25. 10 points
    Mten can dance. This is much more fun than traditional therapy! Playing around with special effect plugins. Edit: I used my DJI OSMO Gimbal which did a nice job tracking movements.