Excessive play in the SOL Z-axis

Problem

Excessive play in the Z-axis. This solution applies to SOL machine models.

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Solution

Check if the nut that holds the lead screw against the bearing is loose. In order to tighten this nut, access to the back of the Z stage is needed. There are a number of ways to do this. Once viewing the back of the z-stage and screw:

(1) remove the lower z mount (see images), (2) then the gear, and (3) then use a deep socket to tighten the nut while holding the lead screw still. Then reassemble the gear back on the z drive.

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