Metal "MB" HotEnd for 1.75mm filament
by rp_one_labs, published
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This thingy made of brass nozzle, stainless barrel (also called thermal barrier), aluminum heater block, aluminum heatsink and aluminum mount plate. Heating element is 6mm x 23mm 40 Watt heater cartridge. Thermistor is pre-glued with GB Weld inside brass hex M-F M3 stud, thermistor is equipped with JST connector. Thingy can be assembled or taken apart in one minute without glue or kapton tape. Everything is screw on-off.
Based on Makerbot Stepstruder Mk7 hotend. Nozzle has Makerbot's modern Mk8 geometry, 0.4mm orifice diameter, but slightly larger than Mk8 outer hex size (7.9mm instead of 6.5mm because it was machined in USA from inch size stock). SS thermal barrier also similar to one used in Stepstruder. Part of the credit goes to Makerbot, which is why I call it "MB".
This is release candidate. Details on the construction will be published when it is released. Please check out STL for 3D View and supplied PDF drawing for dimensions.
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Metal "MB" HotEnd for 1.75mm filament by rp_one_labs is licensed under the GNU - GPL license.
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- Remixing or Changing this Thing is allowed.
- Commercial use is allowed.
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