¶ Z-axis Lead Screws
Z-axis lead screws are used to drive the heatbed up and down. The three Z-axis lead screws require regular greasing to ensure smooth operation.
¶ When to lubricate
It is recommended to check and lubricate the lead screws every three months. You can use the BX-300/F series grease in the link, but other lubrication alternatives can be used.
A popular lubricant is Super Lube 92003 Silicone Lubricating Grease with PTFE or Lucas Oil 10533 White Lithium Grease which should work similarly.
¶ Video Guide
https://public-cdn.bblmw.com/wiki/H2D/maintenance/h2d-Z-maintenance-en.mp4
¶ operating steps
Wrap a non-woven cloth around the Z-axis linear rod, move it up and down to wipe and ensure the linear rod is cleaned thoroughly. Then, use the same motion to wipe the lead screw.
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Next, apply lubricating oil to the linear rod and lubricating grease to the lead screw. Please ensure not to mix up the lubricating oil and grease.
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In addition to the linear rod and leadscrew on the left side, there are also linear rods and leadscrews on the right side and the inner side inside the H2D, totaling 3 sets. The same cleaning and lubrication procedures need to be carried out for the other 2 sets of linear rods and leadscrews as well.
The following images show the cleaning and lubrication process for the linear rods and leadscrews on the right side.
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The following images show the cleaning and lubrication process for the linear rods and lead screws on the inner side.
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Once lubrication is complete, power up the printer again and control the movement of the heatbed up and down on the printer screen. This is to ensure that the lubricating oil and grease fully penetrate the Z-axis leadscrews and linear rods, guaranteeing adequate lubrication.
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¶ End Notes
We hope the detailed guide provided has been helpful and informative.
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