Slice Engineering - Copperhead Hotend
The Copperhead® Hotend is an open-source, modular hotend that integrates into various heat sink designs. With its signature Bimetallic Heat Break™, Copperhead prevents heat creep and reduces clogging in an affordable and adaptable package—making it an excellent choice for anyone looking to improve the performance of their desktop printer.
Open-Source Ecosystem
Copperhead is open source and published under a CC-BY-SA 4.0 license. Its modular heat break system integrates easily into virtually any heat sink design. Copperhead Heat Breaks are made with the same bimetallic technology found in the Mosquito®’s signature Bimetallic Heat Break™ but with a thicker wall for superior impact and abrasion resistance.
Bimetallic Heat Break™
Copperhead Bimetallic Heat Breaks are 60% more efficient at heat creep reduction than monolithic designs. Using the same high-strength copper alloy designed for optimal thermal conductivity found in Mosquito Heat Breaks, Copperhead Heat Breaks boast a higher temperature rating and flow rate potential over PTFE-lined heat breaks.
Adjustable Z-Height for Dual Extrusion Setups
Machined out of aircraft-grade aluminum, the Copperhead Heat Sink’s shaft collar enables easy z-height adjustment of the heat break and hot block—making it ideal for dual extrusion setups. Whether creating intricate designs or experimenting with multi-material prints, the Copperhead Hotend effortlessly adapts to your specific requirements, opening up a world of possibilities.
Super-Conductive Hot Block
Copperhead is named for its hardened, nickel-plated, copper alloy hot block. Rated to 450°C, Copperhead enables printing of nearly every commercially available filament, from basic PLAs to medical-grade PAEKs. The hot block design isolates the sensor from the heater with a physical air gap, improving the temperature feedback loop, and features convenient wrench flats to simplify nozzle changes.
Technical Specifications
| Dimensions | See Copperhead Hotend Comparisons below |
| Mass | See Copperhead Hotend Comparisons below |
| Cooling | Air |
| Filament Diameter | 1.75 mm |
| Temperature Rating | 450°C |
| Maximum Flow Rate Capacity | 33 mm3/s |
| Nozzle Compatibility | M6 x 1.0 (7 mm thread length) |
| Maximum Heating Power | 50 W (12 or 24 V) |
| Temperature Sensor Compatibility | 15 mm length, ø 3 mm |
| Number of Temperature Sensors | 1 |
| Manufacturing | Made in the USA |
Copperhead Hotend Comparisons
| Screw Mount - G2 | Groove Mount - G2 | Standard - G2 | RepRap 1.75 (discontinued) | Mk 10 | C-E (discontinued) | C-Pro Max | |
| Dimensions | 28 x 21.5 x 47.5 mm | 28 x 21.5 x 59 mm | 27 x 15.5 x 27 mm | 27 x 15.5 x 29 mm | 27 x 15.5 x 33 mm | 27 x 15.5 x 34 mm | 27 x 15.5 x 29 mm |
| Mass | 34.4 g | 39.1 g | 22 g | 22.2 g | 26.1 g | 24.1 g | 21.2 g |
| Mount Type | Groove Mount | Screw Mount | ø5.99 x 13 mm Shank | M7 x 1.0 x 15 mm Shank | ø7.78 x 19 mm Shank | ø6.98 x 20 mm Shank | M6 x 0.75 x 15 mm Shank |
Hotend Comparisons
| Copperhead Hotend® | The Original Mosquito® | Mosquito® Magnum | Mosquito Magnum+® | |
| Max Flow Rate Capacity | 33 mm3/s (147 g/hr) | 35 mm3/s (156 g/hr) | 40 mm3/s (179 g/hr) | 90 mm3/s (402 g/hr) |
| Nozzle Orifice | 0.2 – 0.8 mm | 0.2 – 0.8 mm | 0.4 – 1.2 mm | 0.4 – 1.8 mm |
| Mass* | 21.2 - 39.1 g | 37 g | 41 g | 73 g |
| Overall Height* | 27 - 59 mm | 41 mm | 41 mm | 60 mm |
| Max Power | 50 W | 50 W | 50 W | 100 W |
| Filament Size | 1.75 mm | 1.75 or 2.85 mm | 1.75 mm | 1.75 or 2.85 mm |
| One-Handed Nozzle Change™ | No | Yes | Yes | Yes |
| SKU | SLE-HOTCH |
|---|---|
| Filament Diameter | 1.75mm |
| Manufacturer | Slice Engineering |
| Country of Manufacture | United States |
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