A little history about the Janux Flux Drive:
This is the same exact motor that Max offered on his forum. Unfortunately, he is no longer able to carry it but has given me the consent to contact the manufacturer who sold it to him. I am able to sell this motor for the same price $260 for 2 or $140 single which includes shipping in the USA.
TL:DR, can they add a dimple in the shaft where the set screw goes in, and change the set screw to a conical shape one instead of the flat one they currently use (see pix below)?
Is there any way to have these made better? According to @JLabs who also sold this variant before there seems to be a slight flaw in how the motor shaft is held in. I bought two from Max, one motor is still fine but the other one has two issues:
1.) the entire motor can moves in and out 2-3mm (with the shaft), only thing keeping it from pulling out is the c-clip,
2,) the grub /set screw that holds the shaft in position doesn’t do a good job so it slowly wiggles in after 10 miles. This happened to me three times despite properly using loctite.
Max said he would send me a replacement but it hasn’t arrived in time for the group ride tomorrow. I was able to shift the shaft out, there are two FLAT spots where the the FLAT set screw presses on, mine had scratches on it from the shaft moving back and forth. I drilled a dimple on it and switched the flat set screw to a conical one so it actually screws into the dimple. Hopefully this holds up tomorrow,
BUT the entire can and shaft still moves, still not sure what that issue is
My buddies and I also been running Scepter’s motors, we did not encounter any issues so far. They are quite a solid performer. The only thing I could think of is the possibility of missing brass washer before the retainer c-clip as picture below. This might explain the motor moves in and out 2-3mm.
By the looks of it, it’s 100% like the motor I had several severe issues with.
Shaft moving, magnets coming loose, but the biggest issue for me is the weak metal where the screws holding the motor go, leading to stripped threads in the screw holes. And I did not overtighten the screws, but if you have to screw and unscrew a couple of times, the threads will strip.
3 out of 4 holes have stripped threads.
Also, a slight bit of play letting the can move as was mentioned. And it did have the same brass retainer.
Like I said, my buddies and I ran the same motors with no issues. Magnets coming loose probably caused by motor can accidently knocking against the curb or pavement. As for stripped threads, be careful not to cross threads mounting bolts the first time around. Loctite is also recommended.