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Jason McNeil

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Everything posted by Jason McNeil

  1. It's true, even back in 2017 from the era of the first true oscillation bug, the firmware library had 3 variants for the same Wheel size & voltage. Since then, the boards have gone through a profusion of voltages, type & subtypes; I wouldn't be surprised if there's over 100+ firmware variants in the GW source library.
  2. That's the current plan, Gotway want positive confirmation that the replacement controllers have addressed the instability before stamping out another 20 controllers. There is always a hitch to the best laid plans: a week before this issue was identified, I sent the special Firmware Downloader tool back into GW, to have the device loaded with the latest firmware, for the unrelated issue of raising the Nikola temperature threshold to 80°C. CN Customs, in a gesture of defiance to current holder of office, impounded the device under the pretext of it being a 'used' device?! For reasons that remain known only to the GW Boss, he's extremely reluctant to provide this tool, which would save Gotway thousands in producing 30x controllers for a firmware specific issue.
  3. According to KS source, both variants of the KS board are compatible with the CX/2200W motor, the material factor is the LH firmware.
  4. Hang in there, I've got a supply of replacement MSX 100V boards on the way, should be in your hands before the end of next week
  5. If preorder demand is any predictor of future success, the V8F is doing pretty nicely, despite the $200 price delta. Still trying to get some specific data on the new MOSFETs, although board overheating was never really a problem with the V8, the V10/F was susceptible to over-temperature on the hills.
  6. As Marty said, if your MSX is affected, this should be immediately noticeable. All of these MSXs that were shipped, went to Customers who have owned other [in most cases many] Wheels before, so the emerging situation seems less alarming than was initially supposed. Working with a sample size of 2, there was reason to believe the scope of the problem was all of these MSXs in this batch, but now it seems that it is just a small subset. Working on getting a supply of new boards Expressed in to deal with the ride stability by those impacted.
  7. Here's the primary evidence for the speaker-stability interaction behaviour. It's possible this is a red-herring, but GW Engineers believe that there is a direct correlation. If this is true, at least it's an easy diagnostic method. Note: that's not me in the video...
  8. Latest development on this: GW just advised, that they believe that this instability is a consequence of the internal piezoelectric speaker being in too close proximity to the gyro sensor, at least one Wheel has been tested, it looks promising. Waiting for feedback from a couple other Customers from this batch. If this is the case, the fix is a fairly simple speaker further out from the controller.
  9. The latest development on this 2200W Motor upgrade, is that you have to use the KS Soft Tuner App to manually load the '18LH' firmware onto the board, instructions sent over.
  10. Launched... Inmotion HQ have promised us first dibs on this initial production (please, please don't screw it up IM ), tentative ship out date from CN is two weeks away, will be flying in a small supply to try to get these under the Christmas tree in time. https://www.ewheels.com/product/new-inmotion-v8f-518wh-battery-1000w-motor/
  11. Gotway rep said that apart from North America, the MTen3 has not sold well in other regions. Manufacturer logic in producing a new Wheel product is based on historical/current sales demand, rather than what we would prefer of, 'let's make something really cool, then people will buy', AKA the Tesla pickup truck approach.
  12. That's true, my sense is there's an untapped segment for first time riders, who tend to be price sensitive in the beginning, or parents looking to purchase a Wheel for their kid(s). Having a sub-$600 MTen3 would be a perfect foray into the world of Wheels, for those who are on the fence about which model to buy. I'll probably get a supply of both & let the market decide which is the best for their needs.
  13. Working on a deal with Gotway, for offer an 'entry' level MTe3n in the next 40-50 days for around $590, or $400 less than the current 512Wh/84V model. The choice is either a larger capacity 420Wh/67v or the 325Wh/84v, weight difference between the two is negligible, but the question is whether it's more advantageous to have another 95Wh capacity on the 67v or the extra 5MPH of speed head-room. For a 10", does anyone actual ride this at the 25MPH limit, or is 20MPH sufficient? Which would you choose?
  14. Thanks for sharing this information. When you sent the email, with all this wonderful telemetry & direct video evidence, I thought it had to be shared for everyone to see the very real risk potential of this narrow power safety band. Either KS need to get their firmware bulletproofed, where there is a sufficient >5-10kph speed/rpm margin before falling off the torque cliff, or they have to reduce the max speed of the Wheel to 45kph. There's no extenuating circumstances here: you're on v1.07, the battery level is >80%, temperature is not a factor, nor are you a sumo wrestler pushing the 320lb weight class. Guess this necessitates another safety advisory tomorrow
  15. Nearly all the chargers have voltage protection, if the battery threshold falls below 40v, the charger will not output current to the device, this is a requirement of all chargers specs. There have been instances where these chargers alternate between red/green. If the battery is over the 40v & it remains in this mode without topping up the battery, then the charger is probably defective, standard procedure is to replace. Good to see you alive & well Mr. Eucist, get back on your Wheel!
  16. On further probing the question of cell provenance, the Gotway boss said that they were exploring options, including repurposed model 3 cells, but ultimately decided to go for new cells.
  17. GW contact is being somewhat coy on this question: from what I'm told, they are 'repurposed', but before using, the cells are individually checked for IR & random sampling for capacity. The guys at GW know their batteries, from a Distributors point of few, GW packs have the lowest failure rate of any vendor, the normal 18650 Panasonic GAs have earned the AAA+ grade—we haven't had a single bad cell in any of the GW packs sold to date. There's a chap who did an incredible cell comparison over on the eBoard forum. His conclusions for the high draw application of Electric Skateboards, is that the 18650s still reigns supreme. The Panasonic NCR21700A were not evaluated; also with the 5-10x the cell count, multiple-parallels, in high end GW, the individual cells do not draw anything like the same amount of amperage as on an eBoard. In a 24s4p configuration, even 5A/cell load x 4p x 100.8v = >2000W sustained, which is more than ample for just about any scenario, therefore I don't think we should be too concerned about the lack of high current lifespan on the 21700. A more analogous use case is in a Model 3, where these vehicles are expected to have a >500k miles battery. https://www.electric-skateboard.builders/t/my-findings-on-18650s-and-21700s-and-a-little-awards-show-at-the-end/87095
  18. I'd like to a see a new version of the MTen3 with 4x modular battery packs, so in theory it could be taken aboard a plane. At least one manufacturer is working on a suspension, with the added weight & complexity, is it worth it? It could be argued a large 19x3" tire can absorb the brunt road irregularities, I guess we'll see if this ever makes the light of day. Another idea that I think would be cool would be to add an XT90S (anti-spark) output connector, for using this massive energy reservoir with an inverter for use a backup power supply for laptops, or other purpose.
  19. From the research I did on the topic, both the volumetric & Wh/kg are nearly identical, there's a good open access paper published last year on the comparative differences: main advantages from what I can determine, are on the manufacturing side, less materials for driving down the Wh/$$ & lower internal resistance with thicker anode. For the purposes of slamming in as many Wh into a GW shell, the same battery bay slot can use a 900Wh pack instead of the 615Wh with 18650s pack. With the Nikola, this leaves the top slot available for a 3rd 18650 615Wh pack. I asked GW if this would work, but they're adamant it's not supported & shouldn't be used. Can't really see why, sure there would be a lower drain rate from the 3rd pack, the bulk of the load would be maintained from the 2x 21700s, unless I'm missing something here, what harm would that do.... https://www.researchgate.net/publication/328396021_Energy_Density_of_Cylindrical_Li-Ion_Cells_A_Comparison_of_Commercial_18650_to_the_21700_Cells
  20. Removed the wrapping on one of the daughter packs to check the BMS arrangements, that it was not just cobbled together in series: as can be seen, the charging wires are routed back to the main BMS.
  21. Gotway rep says they will not suppress the startup tone by default, unless they get enough complaints. So please help get this changed by voicing your opinion on the Gotway facebook page. https://www.facebook.com/groups/GotWay/ "Boss will not change it until many complaints about it"
  22. Politics. There's always a tension on getting information out about improvements on existing models, because they're reluctant for existing Customers to be clamouring for these changes to be available, the emphasis is on selling new kit.
  23. We did not create this label. Nevertheless, the FTC definition of 'Made in', requires 75% of the manufactured cost of product to be made in the country that's declared. These Panasonic GA cells are made in Japan, therefore this label is an entirely accurate description of goods. In 1996 the FTC[2] proposed that the requirement be stated as: It will not be considered a deceptive practice for a marketer to make an unqualified U.S. origin claim if, at the time it makes the claim, the marketer possesses and relies upon competent and reliable evidence that: (1) U.S. manufacturing costs constitute 75% of the manufacturing costs for the product; and (2) the product was last substantially transformed in the United States. Unfortunately not, I am not prepared to disclose information that could get contacts in trouble for going above & beyond.
  24. Thanks. There's been a recent breakthrough, after many entreaties, KS has committed to fully supporting Illya on this project: before the end of the year, DB should be able to perform KS firmware updates & all the other features from the native App, removing all dependency on the KS App on IOS.
  25. In the manufacturing world everything is about scale, no Wheel maker wants to get involved in making a bespoke pack for an end-Customer contacting them asking for a larger battery, it's not worth their time or hassle. This special edition MSX pack was produced from the GW supply chain, it's not on the 'official' catalog. Ha, I wouldn't make that claim, countries like South Korea & France sell a lot of Gotways!
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