Aluminum 3D Printer Extruder Block, 18mm Center Distance, CoreXY and Ultimaker
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Prices updated: 14 Oct 2026
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About this product
An aluminum extruder and nozzle carrier block for desktop XYZ 3D printers, with an 18 mm center distance and red epoxy insulation between the heater rod and the block. It is designed for Ultimaker-style and CoreXY machines and has a fan side for part cooling. The sandblasted and oxidized surface is intended to improve durability and print finish.
Specifications
- Center distance
- 18 mm
- Material
- Aluminum
- Surface treatment
- Sandblasted and oxidized
- Heater insulation
- Red epoxy resin
- Compatible designs
- Ultimaker-style, CoreXY
Frequently asked questions
Which printers is this block designed for?
According to the listing, it is designed for Ultimaker and CoreXY machine systems and for desktop XYZ printers that use this nozzle structure. Confirm the 18 mm center distance matches your hotend mounting before installing.
Why does the block have an epoxy insulator?
The red epoxy resin stops heat from the heater rod from transferring into the block, which helps keep the printing temperature stable. It also holds the heater rod in place.
