Cleaning Your Stock Exhaust Fan

Preface: This article covers cleaning your exhaust fan and the air flow path.

The exhaust fan shall be disconnected from the machine electrically before servicing

Before you begin:

-Gather tools to service the fan and exhaust. You will need screwdrivers, rags, brushes and a mild cleaner

-Identify which fan you have, the older Centrifugal type or the newer Axial Inline type that are quieter

-Take note that the fans are not "washdown" rated. Be careful when cleaning to not get liquid buildup or runoff near the motor and other electrical parts. Failure to head this advice can damage the fan and is not covered under warranty

-Depending on how much dust\moisture you create, your fan may require a shorter time between cleanings

Centrifugal Fan	Axial Inline Fan
This style fan was found on Q3 2021 and older Nova Series machines (Excluding the Nova 24, Mini 60 unless really old)	This style fan is found on all Bolt, Aurora, Odin and 2022+ Nova Series machines

Exhaust Path Areas to clean:

1. Exhaust Fan

2. Machine Exhaust Grate\Cover

3. Your specific exit point of your space (No details on that since each one will vary)

4. Inspect exhaust ducting for holes, excess buildup. Replace if worn.

Inline Fans (New)

Here is how to clean a inline exhaust fan:

How to Disassemble the fan to access the fan body:

Centrifugal Fans (old)

Here is how to clean the CZ-TD550 Centrifugal Fan that ships with the Nova 35, 51, and 63:

Remove the Cover	Inspect and Clean the Cover
Remove the 8 Phillips head screws as shown

Here is more on that fan: CZ-TD550 Exhaust Fan Specs

Exhaust Panel in the Machine:

Nova and Bolt/Odin Machines:

Lower the Z bed all the way down to gain access to the panel at the back of the laser bay of the machine.   

Use a brush (foam, bristle etc) to knock the dust of the grate and then follow up with a paper towel and cleaner to wipe off the rest.

Nova Before	Nova After

Bolt Before:	Bolt After:

Aurora Galvo Machines:

Use a brush (foam, bristle etc) to knock the dust of the grate and then follow up with a paper towel and cleaner to wipe off the rest.

Aurora Before	Aurora After

Reference Articles:

Preventative Maintenance Checklist - PM Checklist

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