3D Prima Technical support

Introduction:

As there are different versions of the K1 series hotend and heatsink, it is important to know which one is needed when ordering replacements. This article explains

Identifying Hotend Version by Serial Number

• Serial Number Ending with "23" (before the 4 letter ending): This indicates the machine is from 2023 and should be using the original hotend.

• Serial Number Ending with "24" (before the 4 letter ending): This indicated the machine is from 2024 and should use the newer unicorn hotend.

(See examples below)

If your serial number is the 2023 version, the new unicorn hotend will not be compatible with your hotend unless it has been modified. Conversely, if your serial number is the 2024 version the original hotend kit will not work well.

Physical Differences Between Hotend Versions

Visually, the primary distinction between the older and newer hotend versions lies in the presence or absence of the extended heatbreak.

• Original Version (2023): Equipped with a short heatbreak tube (heatbreak is the copper cylinder at the top)

• Newer Version (2024-): Very long heatbreak tube extending far above, this will go through the heatsink when connected to the machine.

Additional Tips

Refer to the user manual or manufacturer's website for specifications and compatibility information.

Hopefully with this information you can accurately determine which hotend version your Creality K1 series 3D printer uses, ensuring compatibility when purchasing replacement parts or upgrades.