If we told you somebody built a 3D printed go-kart, you’d expect to see a certain sequence of events. A bit of work in CAD, a printer montage, then some assembly. That’s not the case here.

My children have enough stuff. No, I mean it. I've started asking people not to buy them anything for Christmas, but obviously I can't do that myself. So I'm trying to find genuinely creative and ...

It’s a simple robot that drags a pen around to draw on paper ... The stepper motors drive the wheels via cogged belts, with the 3D-printed rims fitted with square rubber drive belts used ...