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Maintenance & Calibration

How to Clean and Lubricate the Z Honeycomb Bed Screws on a Thunder Laser Bolt Series machine

Step-by-step guide to cleaning and lubricating the Z screws on the Bolt series laser machines, including removing the honeycomb, crumb tray, and cover plates.

2 min read5 steps1 videoUpdated Jul 2026
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Applies toBoltTopicMaintenance & Calibration

Preface: This article covers how to clean and lubricate the Z Screws on the Bolt series laser machines. The article was written based on the desktop bolt version of the machine.

Quickstart Video


Complete Guide

Tools and Supplies Needed

Tool and Supply Reference Picture
  1. Lubricating Oil (5w-30 motor oil)
  2. Bristle Brush
  3. Blowing Ball\Compressed Air
  4. Paper Towels
  5. 2mm Allen Wrench
Tools and supplies needed

The Procedure

Basic procedure is to gain access to the screws by removing the cover plates, then cleaning the screws, re-lubricating them and assembling the machine back to be ready for service. The steps are covered below.

In order to gain access to the screws we need to remove the Honeycomb and the Crumb Tray:

This would also be a good time to clean the Honeycomb and Crumb Tray

To remove the honeycomb, lower it down below the rotary port. Open the front blue door. Lift the tray out of the frame and pull out the Honeycomb.

Honeycomb Before Honeycomb Removed
Honeycomb before removal Honeycomb removed

To remove the Crumb tray, open the front blue door. Slid the tray out until the stops are engaged and then lift the tray up and pull out the rest of the way.

Crumb tray removal illustration
Crumb Tray Before Crumb Tray After
Crumb tray before removal Crumb tray after removal

Then we need to remove the protective plates for all 4 screws:

Upper Bolt Location - Remove these 8 bolts completely with the 2mm Allen wrench

Left Side Right Side
Upper bolt location left side Upper bolt location right side

Lower Bolt Locations - Just loosen the bolt with the 2mm Allen Wrench, do not remove the bolt completely. The plates are designed to slide into these bolts.

Left side Right Side
Lower bolt location left side Lower bolt location right side
Lower Z Bed to Bottom Remove the 4 Plates
Lower Z bed to bottom Remove the 4 plates

Then use the brush, compressed air or towel to remove excess dirt and debris from the screws:

Note that with the debris being stuck on with oil, it will likely require the brush/towel to remove. You may need to raise and lower the bed slightly to expose the opposite side of the screws
Cleaning the screws with brush

Then re-oil the screws:

Lightly re-oil the screws Run the bed frame up and down to help distribute the oil
Lightly re-oil the screws Run bed frame up and down to distribute oil

Then Reinstall the Cover Plates, Crumb Tray and Honeycomb

Make sure the honeycomb is seated properly, it has pins on the front lip.

Not installed or seated correctly Installed and seated on pins correctly
Honeycomb not installed or seated correctly Honeycomb installed and seated on pins correctly

All complete, lets get back to lasering.


Reference Articles

Preventative Maintenance Checklist - PM Checklist

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