Argento Hot End
- Use widely available materials
- Mix several metals with different heat transfer coefficients to slow down convection.
- Have a long and continous path where the transformation from solid to liquid takes places, in order to minimize turbulence and get a laminar output.
- Get rid of PFTE/Peek in favor to make it more reliable/heat proof.
- Easy to assemble design
First version conclusions
Aluminum was used for the heat sink. A stainless steel core barrel inserted inside as heat insulation for the filament. The brass nozzle goes inserted into an aluminum non threaded heating block.
Changing the core barrel for Stainless Steel grade 303 and using it as nozzle. Now the hotend is divided in 3 parts.
Use PTFE liner (10mm aprox) in core barrel.
minor changes in the heat sink and nozzle angule