My 6374 motor broke some time ago and this weekend I bought copper wire to re-wind this boy. Since this was my first time it didn’t go as planned because I somehow winded one of the three 4 pole phases half a round extra in comparison to the other two. So instead of 10 turns per pole, 4 of them got 40,5 in total somehow. Don’t ask me how this happened, it is actually very easy to make this mistake.
Now will it still work? It is unsensored. I also could wire the last phase one extra round and make it 40. 40,5. 41 though that would probably affect the performance worse? Or better because you get a little more torque?
If this wont work well would making it sensored make it better do you think?
Should still work fine and supposedly a lot of motors are wound imbalanced like that by factories. If u measure the inductance of each phase with an L/C meter, which are cheap and very worth getting, even when there’s an equal amount of turns on each phase and teeth they are often imbalanced due to the order or disorder of the winding.
Thanks for the compliment. The real experts hang at rcgroups
If you put a lot of effort into the winding and well done it would be nice to see it compared on the bldc tool looking at kv and resistance.
Worth getting some thin high-heat epoxy to hold it all down after winding and especially insulate where the phases come out
Instead of epoxy I could use some super glue? Google sais it withstands about 180 Celsius until melting.
That should atleast be better than epoxy which is not heat resistant. And also I only have super glue at hand rn, and some silicone caulk and metal paint, though that wouldn’t work well i suppose.
I won’t get an l/c meter because these are the cheap Chinese 6374 motors and spending 20$ at repair is better than 50$ on a new motor. Buying some I/C meter wouldn’t be worth it.
You’re running an unsensored motor with no temperature probe so you’d have to be super careful with the heat, if the super glue were to melt it would eventually end up in bearings and seize them up once you stop riding. Otherwise, dunno.
I don’t bother with bldc tool, I don’t know what that is and I dont use a vesc… I think I’ll just hit the motor up and see how well it goes and I wonder what will be better super glue or the glue you use for patching up bicycle tires, maybe that is more heat resistant?? And wont eat my insulation because that would make me cry inside.
Also the motor won’t get that hot because I have two of them… That’s also why I am somewhat worried about my windings. I am a very light rider so my system will be a ok.
Hot glue a better alternative?
glue for bike tires sounds too soft. bldc tool is for running the motor with a vesc on your computer and can see stuff.
if you search on the forum for “battle hardening” people have used different materials to glue the windings.
maybe powder the windings first with talcum powder before the super glue? i see those often mixed with good results
Hummieee I might do that or first use ms polymer caulk or hot glue to protect the insulation and then super glue on top
Lol hot glue might melt so perhaps not the best idea, I could use a soldering iron and kind of melt the hot glue like crazy to higher the melting temperature but the fumes could be very harsh etc…