4 Ways How to Fix Z-Axis

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WHY DOES YOUR Z-AXIS KEEP FALLING OR SLIPPING There are instances when the Z-axis falls or slowly slips down on the print bed, often in the middle of printing, resulting in a ruined print. It has now become a common issue among 3D printing enthusiasts and creators.

A binding of your Z-axis nuts with the leadscrew and 3D printer can definitely cause this dropping of your Z-axis, meaning your motor finds it harder to lift the Z-axis all the way through.

Loose eccentric nuts Bad lubrication of your 3D printer Z-coupler and other screws not maintained

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Binding of your 3D printer Z-axis and lead screw

HOW TO FIX YOUR FALLING OR SLIPPING Z-AXIS ON YOUR 3D PRINTER One of the simpler fixes for your Z-axis slipping or falling is to tighten the eccentric nut. This is the nut that is attached to the inner sides of the Z-axis, attached near the belt going across the Xaxis.

When I finally tightened the eccentric nut along the Z-axis, Ender 3 z

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axis limit switch adjustment no longer slipped like before.

FIX BINDING ISSUES IN Z-AXIS Another issue that can cause your Z-axis to fall comes from binding from your printer.

In order to fix this issue of binding, the user loosened the two screws for the brass lead screw nuts. You don’t want to loosen this so much that there is vertical play in this section, but loose enough that you can slightly feel some side-to-side play.

3. LUBRICATE YOUR Z-AXIS

If you find that your Z-axis leadscrew is properly installed and is not binding, then you should try lubricating your 3D printer, especially around the Z-axis.

This can be as simple as using a lubricant PTFE spray or using a popular lubricant like Super Lube Synthetic Oil with PTFE from

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Amazon.

TIGHTEN YOUR Z-COUPLER & SCREWS Another fix this works for some people is tightening your coupler so that it is securely fixed onto the leadscrew.

You have the two screws for the coupler itself that you would’ve tightened during your initial assembly, so doubleMech E Store

check those.

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