Everything about extruders – one of the functionally most important parts of any filament-based 3D printer! Building a RepRap-style 3D Printer without buying a full kit is still the purist’s way to go – it’s the cheapest and most flexible way of acquiring a 3D printer, but there are a lot of chances where stuff can go wrong. In this mini-series i’ll try to cover the most important spots while Luk builds his iTopie i3!
