If you are reading this article, you may have questions about installing a 65mm spindle on an older Onefinity Z-16 carriage using the factory 65mm mount.

This is not an issue with the spindle itself. Rather, it is a characteristic of the older Z-16 carriage design and the position of the factory 65mm mount. When the spindle is installed correctly, we have not found this to be a significant problem.

Below are several photos showing our 65mm air-cooled spindle installed on an older Onefinity machine.

To ensure proper installation:

1. Lower the Z-axis completely.
2. Insert the spindle into the mount, but do not tighten the mount yet.
3. While supporting the spindle by hand, raise the Z-axis completely. This allows the mount to slide upward along the spindle body.
4. Once the mount has reached its highest position, lift the spindle upward until it contacts the bottom of the Z-axis motor.
5. Tighten the mount securely to hold the spindle in place.

When installed using this method, the spindle should sit in the correct position and operate as intended.