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 ... trusses using the 3D pen.

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 ...

This year, the kids want a gift that keeps on giving. Something like Amazon’s hottest 3D pen set, a one-of-a-kind gadget that is completely child-safe, provides hours of entertainment and fuels ...

Now, he says, their work will "force" private companies to "take the pen" and continue ... then programmed into a 3D printer. The printer is then brought to the site of the home.