Usually when you design a 3D-printed part, you want it to “build from the ground up”. After all, having the extruder “hang filament in mid-air” seems like a pretty difficult request. But today, I did it.
![](https://i2.wp.com/3d.rayharwood.com/wp-content/uploads/2014/07/FreeCAD-Bridge.jpg?fit=326%2C175)
Usually when you design a 3D-printed part, you want it to “build from the ground up”. After all, having the extruder “hang filament in mid-air” seems like a pretty difficult request. But today, I did it.