Megsy73 said:
i would also be enraged to find out that it was never even stress tested
Yeah that's the biggest weakness of the LR that it's not tested by the manufacturer. So what that means is the customers are the guinea pigs and have to find the limit of all the parts..?? This is more of a problem as the kit is new.
With better quality kits like the AFT, they list on their website that they have done 10,000km testing, confirmed by people out there who have done over 4000 miles like cheeky bloke on the AFT:
http://endless-sphere.com/forums/viewtopic.php?f=28&t=59063&start=125
It's easy to make something that looks like it will work or work for a short time. But it's only through testing it in real world conditions for lots of Kms that you can be certain it will work for a long time in the real world...... and even better is having real world users confirming its not manufacturer hype.
my initial assumption was that although the drive was not fully tested, the way it was built (i.e part by part after the previous parts has failed) would may be sufficient that the parts individually were tested rather then the whole.
the customers don't seem to mind to be guinea pigs, they didn't seem to mind to pay for replacement parts even though the initial were ones were broke because of a design flow. to be honest, i didn't mind either. what i DO mind is owner constantly getting worried that my posts would harm his kit, even though i never stated that there was something wrong it with. and i would have done that in the future (post things that may have happened to it, not that it was bad) things happen to me, should i be worried that each post may anger him, that each time he didn't answer his mail i would have to wonder maybe it was due to deciding not to answer me rather then just being overloaded? that's too much for me.
i'm still considering to build a kit around his motor, the problem is this is the only motor i have, and he won't provide a new one if this one fails. (off course,) what's the special about this motor, is that his motor's shaft go through a process where he strips the original belt pulley and install a custom larger pulley that rids the use of a belt tensioner that according to their calculations wastes 100 watts. that also places him as "bottle neck" because he becomes a motor supplier of his own. the only possible failures i see for a motor are magnet braking (hey, it happened to me) and hall sensor failure due to over heating or water taking in the motor (also happened but i was able replacethem myself)
i examined once the aft, my biggest problem with it, and in fact all other mid-drives kits is planetary gears, it's the secret of what makes them small an elegant, but also their main failing point, because it's a custom part, it could wear out very often. so that's a bottle neck as well, L-R's kit maybe big and bulkey but it has less moving parts. i have no idea what i would do if that aft's planetary gears would wear out. additionally their motors has such huge fins,one should question how much heat is getting wasted.
actually cheekybloke is switching to L-R's kit, L-R is building him a special version, where the primary reduction is a D.I.D chain instead of a belt.
http://endless-sphere.com/forums/viewtopic.php?f=28&t=57720&start=2575#p1011806
which is something i wanted for my kit as well, as the belt seemed to be slipping when starting from a high gear, i asked him if he could do that to a small block as well, but again.. was ignored.
right now i'm not exactly sure what to do, i'd like to continue to use L-R's kit, but to invest such a huge sum in custom plates i need to be 100% sure i can replace all the wearable parts. which from what i can see are the D.I.D driver sprocket, driven sprocket. the belt pulley on the motor itself, as well the driven pulley.
i think i'm pretty sure that D.I.D parts are off the shelf, but i'm not sure about the belt pulley, or what specs to look for, as for the driven pulley, that i know is custom made, i even heard that he planned to make a better one, but all my questions about when it's gonna coming out were ignored.
maybe i should just order the 2015 edition gng kit try and run that in 2000 watts for a while and see what brakes.
you may not know my history, but i'm currently using an ecospeed kit, however without the original motor, (with original configuration had me going barely 40 kph), i'm using a bmc motor, that has a much higher rpm, and gives me better acceleration, this was one of the few motors that had its' internal controller disabled and externalized. but the issue with using it, is that wears out the planetery gears in a few months, and those are speciality items (that i can get for 20$ in ebays, but still), infact it's using a original lashout gear box, so i've had to replace the roller clutch sprockets, nylon washers, outer bearings, driven sprocket, and off course the planetary gears. this is what prompted me to go to L-R's kit, hoping he would have better parts, and easier way to replace them.