I bought a 3d-Printer some time ago, and am now building another one.
I want to print using pellets instead of filament. I know of the pellet hotend options, mainly with an auger bit.
However theres a catch. I need to melt the pellets, then add non-meltable components, mix, and then pump it to the hotend.
The Melting and feeding I can think of a few ways to accomplish that.
But do you know of an (affordable) pump that can be used in 400°C (celsius, not fahrenheit)?
I thought of an all-metal gear pump, but any suggestions are welcome.