Servo42C assembly fix
Symptom
Symptom
You feel it grinding while manually turning the stepper shaft
Root Cause
Root Cause
The M3 bolts might loose due to the elasticity of nylon spacers in the long run, especially in a heated environment. The stepper armature might grind surrounding magnets.
Solution
Solution
Replace the nylon washers with M3 bolts and M4 nuts as washers (or an equivalent) as shown in the pictures.
For a temporary workaround, just check and fasten the long M3 bolts before you have time replacing the nylon washers.
Remember to calibrate again.
Materials
Materials
M3 nuts (x4)
M4 nuts (x4) or 3x6x1 metal washer (x8) as spacers
Loctite 243 thread locker