Does anyone know what I need to do to fix this movement? This board has gone through just south of 50 miles. I can tell one mount angling down more so I have to redo the loctite there…On my way home from the office just now it didn’t feel right. I hopped off and noticed that the motor can is loose I can wiggle it back and forth.
Couldn’t untighten the set screw though, not even with added heat, and eventually it stripped. I had to use a hammer to push the shaft out and then added green loctite to keep shaft in place.
Same exact problem for me in the past! If you strip the grubs you’ll have to drill them out. That motor can accommodate up to an m6 grub. To set the shaft to the right depth, you can set the can on a skate wheel, put the spacer and the circlip back on, and gently hammer the shaft back until it won’t go further.
If you have to drill, remove the shaft, and use duct tape to cover the motor magnets.
There is a flat spot on the shaft already, but it’s too long allowing the screw to slide along the flat spot. They should have drilled a hole for the set screw, not a flat spot.
It sits pretty tight even without the screw, and then add the force of the magnets… It won’t fly off, although it might not run very smooth as there will be some added strain on the bearings?
I noticed that when getting the shaft in place, motor ran a lot smoother with less noise.
It’s a very tedious process… you will for sure have to drill out the set screws because they are so small and brittle. Also, if you push the shaft back in at the slightest angle you will ruin the entire can.
Dude one of my motor is doing exactly the samething. My motor can slides like yours and also the shaft rod shift too. I really hope you can find a way to fix yours
Ok, I got a chance to pull the two set screw out, pressed the shaft back to the correct position, re-tightened the set screws with a make shift torque wrench.
Sadly the can (with shaft) is still moving make and forth. I was only able to pull the motor off so much to peek in without taking off the mount. It does look like the circlip is warped/bent. Does anyone know what size circlip that would be in that thicker park of the shaft? I want it on hand before taking more things apart.
I had the same problem with the motor of my first build. My solution was to add washers between circlip and pulley then the can with shaft can’t move outwards anymore. Second advantage is that you can re-mount the pulley 100 times and it’s always on the same position as before.