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Add Ender-5 leadscrew README (#16424)

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thisiskeithb 2020-01-02 18:41:50 -08:00 committed by Scott Lahteine
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# Creality Ender-5 Leadscrew Changes
In mid-to-late 2019, Creality upgraded the base Ender-5 leadscrew to the same one used on the Ender-5 Pro which prevents the bed from dropping once power is cut.
If your machine shipped with the upgraded leadscrew (or if your prints are 1/2 as tall as they should be), change your Z steps from `400` to `800` in `Configuration.h`:
Before:
`DEFAULT_AXIS_STEPS_PER_UNIT { 80, 80, 400, 93 }`
After:
`DEFAULT_AXIS_STEPS_PER_UNIT { 80, 80, 800, 93 }`
Or by sending `M92 Z800` followed by `M500` after updating your firmware.