Extruder system
Slice Engineering Copperhead: heat break fit and torque
Slice's Copperhead heat break: M6x1.0 hot blocks, 450 °C, no torque on the heat break, 1.5 Nm for nozzles, the 3 mm longer G2, and its Neptune 3 kit.
Also listed as Copperhead
Short answer
Slice Engineering says the Copperhead heat break fits hot blocks with M6x1.0 threads and is rated 450 °C (the heat break alone). Never apply torque to the thin heat break when installing it; Slice recommends 1.5 Nm for nozzles. The Copperhead Standard G2 is 3 mm longer than the original. Slice's Neptune 3 kit lists the Neptune 3 Pro, Plus and Max.
Key facts
- Type
- Heat break[1]
- Filament size
- Not confirmed
- Gear ratio
- Not confirmed
- Published E-steps
- Not confirmed
- Drive gears
- Not confirmed
- Max temperature
- 450 °C (heat break alone)[1]The whole hotend's limit depends on the other parts.
- Nozzle standard
- Fits hot blocks with M6x1.0 threads[1]
- Nozzle change
- Never apply torque to the heat break when installing it in the heat sink; Slice recommends 1.5 Nm for tightening nozzles[2]Slice warns that not all nozzles can withstand 1.5 Nm; check your nozzle maker's figure.
- Heater
- Not confirmed
- Printers the maker names
- Slice's Neptune 3 upgrade kit: ELEGOO Neptune 3 Pro, Neptune 3 Plus and Neptune 3 Max[3]Not the base Neptune 3. The kit includes a Copperhead silicone boot and a 37.5 mm Capricorn PTFE tube.
- Maker flow figure
- 33 mm³/s, only with a Copperhead Hot Block (Slice)[1]The figure does not apply to the heat break on other blocks.
- Outside measurement
- Not confirmed
- Where the maker sells
- Not confirmed
- Not confirmed
- Not confirmedSlice's page names no steel grade, so we do not call it titanium.
Watch out for
- Do not apply torque to the thin Copperhead heat break when installing it in the heat sink, per Slice.
- Slice's 1.5 Nm nozzle figure is not safe for every nozzle; Slice itself warns some cannot take it. An Olsson Ruby, for example, is 0.5 Nm and never over 1 Nm per its maker.
- The Copperhead Standard G2 heat break is 3 mm longer and G2 heat sinks have a 3 mm deeper bore. A G2 break in a G1 sink sticks out and may need a Z-offset change; a G1 break in a G2 sink can make fitting the PTFE tube harder.
- The 450 °C rating is for the heat break alone, and the 33 mm³/s figure needs a Copperhead Hot Block.
Questions
How tight should a nozzle be in a Copperhead block?
Slice recommends 1.5 Nm for tightening nozzles, and warns that not all nozzles can withstand it. Never torque the heat break itself. See nozzle torque by maker.[2]
Can I mix Copperhead G1 and G2 parts?
Slice says yes, with caveats: a G2 heat break in a G1 sink sticks out and may need a Z-offset change, and a G1 break in a G2 sink can make fitting the PTFE tube harder.[4]
Does Slice's Neptune 3 kit fit the base Neptune 3?
Slice's guide lists the Neptune 3 Pro, Neptune 3 Plus and Neptune 3 Max. It does not list the base Neptune 3.[3]