MPCNC-Add KFL08 Z-Lower-C-Burly

thingiverse

While assembling my MPCNC (C-Burly) Z-axis assembly, I noticed a significant movement on the Z-axis assembly when weight was applied to the tool holder. This movement was evident on the shaft of the Z-Axis motor. The entire weight of the Z-axis, including the material/mount and spindle tool, is supported solely by the Z-axis motor. The upward forces generated during cutting are handled by the bearing on the Z-axis threaded shaft and the shaft coupler. However, the motor bears all the static load. To mitigate this issue, I modified the Z-Lower-C-Burly part to accommodate a KFL08 bearing assembly under the part, which takes the static load off the Z-axis motor. Now, it's possible to assemble the motor and Z-axis threaded rod without the two shafts touching, allowing for some flexibility in the flex coupling if needed. To secure the KFL08 bearing assembly, I require two M5 bolts/nuts.