If we told you somebody built a 3D printed go-kart, you’d expect to see ... eventually fused together into 3D trusses using the 3D pen. The trusses are then mounted to the RC car chassis ...

However, [BManx2000] found that the way the filament simply sticks out of the back of a 3D printing pen like a bizarre tailfeather was troublesome. The solution? A Mini Spool System for 3D ...