Popular Post Scully Posted June 12, 2017 Popular Post Share Posted June 12, 2017 An update from Speedyfeet via their Facebook pages. SpeedyFeet UK 1703 1704 1705 is just batch code for the Motor itself (literally the motor from the motor factory) It doesn't relate to the Gotway build. (From Gotway "1703 1704 1705 is just batch code from motor factory. But all of them are the same."). So those broad set of numbers wont help / dont mean anything. Its the numbers AFTER those numbers that are the batch identifiers for Gotway (when it was made, who purchased etc etc). 7 Quote Link to comment Share on other sites More sharing options...
Popular Post Jason McNeil Posted June 12, 2017 Popular Post Share Posted June 12, 2017 (edited) Got some additional info from GW this morning: They claim that this is the first time they've heard of these problems They're trying to gather the Motor Codes of effected units to assess if it's a batch problem It could be a firmware, at this point they're not certain The motor wire tubing is a new addition from mid-May Edited June 12, 2017 by Jason McNeil 13 Quote Link to comment Share on other sites More sharing options...
MichaelHensen Posted June 12, 2017 Share Posted June 12, 2017 I think if it is firmware, they should know what has been changed prior to the last batch, but only if they are in control of their own firmware.. As it seems switching PCB was a working solution in one case.. (could be that this had an older firmware) ... but all is guessing.. They have a big problem to solve.. (and test) 2 Quote Link to comment Share on other sites More sharing options...
EUCGUY Posted June 12, 2017 Author Share Posted June 12, 2017 we need the code under the barcode on the boc it came in. Quote Link to comment Share on other sites More sharing options...
EUCGUY Posted June 12, 2017 Author Share Posted June 12, 2017 Lets all wait until we hear from gotway what the problem is.. 2 Quote Link to comment Share on other sites More sharing options...
OliverH Posted June 12, 2017 Share Posted June 12, 2017 (edited) 3 hours ago, Jason McNeil said: Got some additional info from GW this morning: They claim that this is the first time they've heard of these problems They're trying to gather the Motor Codes of effected units to assess if it's a batch problem It could be a firmware, at this point they're not certain The motor wire tubing is a new addition from mid-May If a manufacturer is not sure if it's firmware than he has no documentation of the assets and the corresponding configuration. If there was a firmware change they should know which items are in scope and they can conduct tests to all configurations. No maturity for doing a batch production of a type. Edited June 12, 2017 by OliverH 1 Quote Link to comment Share on other sites More sharing options...
Carlos E Rodriguez Posted June 12, 2017 Share Posted June 12, 2017 (edited) companies like this will self destruct eventually. I just dont see why they could survive unless their margins are so big that they can give you a new wheel and still make money. If the margins are minuscules, one event like this would be enough to shut the doors and possibly a competitor would buy the brand and possibly shelve it. At this point I do not thrust GOTWAY to make any change using engineering principles. That clear shrink wrap on the hot phase cables are clear sign of how little they know. also to say they give you extra/spare sleeves for the convenience of customers is even more ridiculous. Technically speaking the connections should be permanent. The batteries and board should not need replacement for the life of the board and it should only be a rare event. Ane even worst, the shrink wrap is a terrible shield at high temperatures. RIDICULOUS. Edited June 12, 2017 by Carlos E Rodriguez 3 Quote Link to comment Share on other sites More sharing options...
OliverH Posted June 12, 2017 Share Posted June 12, 2017 32 minutes ago, Carlos E Rodriguez said: companies like this will self destruct eventually. I just dont see why they could survive unless their margins are so big that they can give you a new wheel and still make money. If the margins are minuscules, one event like this would be enough to shut the doors and possibly a competitor would buy the brand and possibly shelve it. At this point I do not thrust GOTWAY to make any change using engineering principles. That clear shrink wrap on the hot phase cables are clear sign of how little they know. also to say they give you extra/spare sleeves for the convenience of customers is even more ridiculous. Technically speaking the connections should be permanent. The batteries and board should not need replacement for the life of the board and it should only be a rare event. Ane even worst, the shrink wrap is a terrible shield at high temperatures. RIDICULOUS. full ack. This products are not designed as we understand designing something. This products just happens from our point of view. Quote Link to comment Share on other sites More sharing options...
Dingfelder Posted June 13, 2017 Share Posted June 13, 2017 Well, mine is still in the mail ... and now I'm worried ... 1 Quote Link to comment Share on other sites More sharing options...
MichaelHensen Posted June 13, 2017 Share Posted June 13, 2017 4 hours ago, Dingfelder said: Well, mine is still in the mail ... and now I'm worried ... I am in the same boat.. But also don't know if shipped already, all a bit vague.. Quote Link to comment Share on other sites More sharing options...
Hatchet Posted June 13, 2017 Share Posted June 13, 2017 I'm sorry to upset anyone (I know we have some Gotway lovers here!) but I agree with Carlos on this one. QA is very important, very important and i have never been convinced it is a part of the Chinese business model. This may drive business to King Song who appear to have realized that at the very least paying lip service to QA and safety is an excellent selling point. I have no idea if KS really are any better, never owned one, but they do list features specifically aimed at safety and quality. @Dingfelder and @MichaelHensen I hope if the worst happens the dealer will take care of you. Bummer to have anything possible spoil the super fun anticipation of a new wheel! 2 Quote Link to comment Share on other sites More sharing options...
Hunka Hunka Burning Love Posted June 13, 2017 Share Posted June 13, 2017 (edited) Just speculation, but I wonder whether their change to a thicker motor wiring may have inadvertantly created a new problem. Without a change in bearing size and axle wire channel diameter, their motor supplier might have been forced to thread thicker wiring through the axle channel. If they didn't spend extra time like @Rehab1 did to smoothen out any metal spurs or edges or use a lubricant to aid in wire movement, some wires may have their insulation compromised resulting in electrical shorts. Is there a wire bundle protective tubing present that goes through the axle channel with the wires? The thinner hall effect sensor wiring might be more susceptible to damage. One other possibility might be that during assembly they are having a tougher time threading the wiring through possibly stressing hall effect sensor legs so they may be breaking or contacting neighboring legs? There doesn't appear to be a supporting PCB board for the sensors judging by @Rehab1's photos. A bump during lower speed riding may be enough to create electrical contact if those sensor legs are not insulated or supported properly. Soldering wires directly to sensor legs without a supporting PCB never made sense to me considering how frail the legs can be. Even cheaper wheels have been seen to include a small mounted PCB board that acts as an intermediate junction point between sensor and wiring. It would be interesting to see a video of the motor assembly process. Edited June 13, 2017 by Hunka Hunka Burning Love 3 Quote Link to comment Share on other sites More sharing options...
Marty Backe Posted June 13, 2017 Share Posted June 13, 2017 (edited) 23 minutes ago, Hatchet said: <snip> QA is very important, very important and i have never been convinced it is a part of the Chinese business model. This may drive business to King Song who appear to have realized that at the very least paying lip service to QA and safety is an excellent selling point.<snip> <snip> I'm just having a little fun here, but you do realize that KingSong is Chinese too? Edited June 13, 2017 by Marty Backe 3 Quote Link to comment Share on other sites More sharing options...
Popular Post Marty Backe Posted June 13, 2017 Popular Post Share Posted June 13, 2017 51 minutes ago, Hunka Hunka Burning Love said: Just speculation, but I wonder whether their change to a thicker motor wiring may have inadvertantly created a new problem. Without a change in bearing size and axle wire channel diameter, their motor supplier might have been forced to thread thicker wiring through the axle channel. If they didn't spend extra time like @Rehab1 did to smoothen out any metal spurs or edges or use a lubricant to aid in wire movement, some wires may have their insulation compromised resulting in electrical shorts. Is there a wire bundle protective tubing present that goes through the axle channel with the wires? The thinner hall effect sensor wiring might be more susceptible to damage. One other possibility might be that during assembly they are having a tougher time threading the wiring through possibly stressing hall effect sensor legs so they may be breaking or contacting neighboring legs? There doesn't appear to be a supporting PCB board for the sensors judging by @Rehab1's photos. A bump during lower speed riding may be enough to create electrical contact if those sensor legs are not insulated or supported properly. Soldering wires directly to sensor legs without a supporting PCB never made sense to me considering how frail the legs can be. Even cheaper wheels have been seen to include a small mounted PCB board that acts as an intermediate junction point between sensor and wiring. It would be interesting to see a video of the motor assembly process. Interesting speculation. I so wish Gotway would actively participate here or on Facebook so that we could get faster responses to our concerns. Unless the majority of wheels start failing it could take months (or never) before Gotway offers an opinion. As someone who's just about to receive their new MSuper I can't help but be a little nervous about receiving it. 5 Quote Link to comment Share on other sites More sharing options...
Rehab1 Posted June 13, 2017 Share Posted June 13, 2017 (edited) 1 hour ago, Hunka Hunka Burning Love said: Just speculation, but I wonder whether their change to a thicker motor wiring may have inadvertantly created a new problem. Without a change in bearing size and axle wire channel diameter, their motor supplier might have been forced to thread thicker wiring through the axle channel. If they didn't spend extra time like @Rehab1 did to smoothen out any metal spurs or edges or use a lubricant to aid in wire movement, some wires may have their insulation compromised resulting in electrical shorts. Is there a wire bundle protective tubing present that goes through the axle channel with the wires? The thinner hall effect sensor wiring might be more susceptible to damage. Hunka... are you trying to jinx my new motor? I can only hope GW took the time to smooth the axle bore as there were sharp edges on the old motor shaft that cut through the new 14awg wires as I was feeding them through the shaft. Edited June 13, 2017 by Rehab1 3 Quote Link to comment Share on other sites More sharing options...
Popular Post Rehab1 Posted June 13, 2017 Popular Post Share Posted June 13, 2017 (edited) The new ACM wires exiting the shaft are well contained in a plastic sleeve. I feel good about this! Without removing the motor covers I would not have any idea about the integrity of the hall sensor and motor wires entering the shaft. The 9 wire bundle enters the shaft at a 90 degree angle and the previous shaft had many sharp edges. I had to use a dremel tool to smooth the edges. Hopefully the shaft on the new motors has been finely machined so no sharp metal edges remain or the insulation on the wires will eventually be compromised. Edited June 13, 2017 by Rehab1 5 Quote Link to comment Share on other sites More sharing options...
kour Posted June 13, 2017 Share Posted June 13, 2017 38 minutes ago, Rehab1 said: The new ACM wires exiting the shaft are well contained in a plastic sleeve. I feel good about this! Without removing the motor covers I would not have any idea about the integrity of the hall sensor and motor wires entering the shaft. The 9 wire bundle enters the shaft at a 90 degree angle and the previous shaft had many sharp edges. I had to use a dremel tool to smooth the edges. Hopefully the shaft on the new motors has been finely machined so no sharp metal edges remain or the insulation on the wires will eventually be compromised. thanks for showing! 1 Quote Link to comment Share on other sites More sharing options...
Rehab1 Posted June 13, 2017 Share Posted June 13, 2017 On 6/12/2017 at 10:34 AM, Jason McNeil said: Got some additional info from GW this morning: 4)The motor wire tubing is a new addition from mid-May Oh how I would love to see the process of feeding the wire bundle and protective sleeve up the small shaft. Do you think GW would provide you with a short assembly video on the technique? Quote Link to comment Share on other sites More sharing options...
Jason McNeil Posted June 13, 2017 Share Posted June 13, 2017 1 hour ago, Rehab1 said: Oh how I would love to see the process of feeding the wire bundle and protective sleeve up the small shaft. Do you think GW would provide you with a short assembly video on the technique? I can ask, not getting a lot of answers from GW at the moment, maybe a bit later. Quote Link to comment Share on other sites More sharing options...
meepmeepmayer Posted June 13, 2017 Share Posted June 13, 2017 Gotway management stuffing bills into their suitcases and booking tickets to Rio while the workers find themselves in front of locked doors and a dark building? 2 Quote Link to comment Share on other sites More sharing options...
Marty Backe Posted June 13, 2017 Share Posted June 13, 2017 Does Gotway have a social presence anywhere? We know that they don't in the Western World, but how about in the East? I don't have a clue as to how Chinese businesses operate. In the West, any company that wants to be successful maintains a website and tries to get traction on social platforms. How do the Chinese operate? If they have the equivalent than some fellow EUC enthusiast who can speak the language should investigate a bit (web surf?) and let the community know what's happening. That's my dream anyway. I continue to be mystified how the whole EUC manufacturer community is a black hole to us. 2 Quote Link to comment Share on other sites More sharing options...
Rehab1 Posted June 13, 2017 Share Posted June 13, 2017 Are we certain that this is just a Gotway MSuper motor issue? My new ACM motor has a 1705 prefix! 1 Quote Link to comment Share on other sites More sharing options...
Popular Post esaj Posted June 13, 2017 Popular Post Share Posted June 13, 2017 6 minutes ago, Rehab1 said: Are we certain that this is just a Gotway MSuper motor issue? My new ACM motor has a 1705 prefix! Are we certain that this is a motor issue at all? AFAIK, the motor codes were mentioned only as a way to identify wheels possibly having the fault, but whether the actual reason is in the motor, electronics or firmware seems totally uncertain at this point. 4 Quote Link to comment Share on other sites More sharing options...
MichaelHensen Posted June 13, 2017 Share Posted June 13, 2017 (edited) I believe only the 84V wheels are affected.. Edited June 13, 2017 by MichaelHensen Quote Link to comment Share on other sites More sharing options...
Rehab1 Posted June 13, 2017 Share Posted June 13, 2017 (edited) 22 minutes ago, esaj said: Are we certain that this is a motor issue at all? AFAIK, the motor codes were mentioned only as a way to identify wheels possibly having the fault, but whether the actual reason is in the motor, electronics or firmware seems totally uncertain at this point. Esaj...I'm sending out my new motor for your expert analysis. This whole thing is very unsettling! We need some definitive answers immediately! Edited June 13, 2017 by Rehab1 1 Quote Link to comment Share on other sites More sharing options...
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