The new hotness in 3D printers is – and has been for a while – dual extrusion. With two extruders and the requisite filament supply, it’s possible to print objects in two colors or two different materials. There’s a problem with this setup, though: each extruder requires a …
Dual extruders in the space of one stepper motor
![](https://tgdaily.com/wp-content/uploads/2019/05/dual1-300x146.webp)