Is the plastic hot when it comes out of the pen?
For the Create+, our filaments vary in temperature but get very hot, so we do not recommend touching the plastic within 5 seconds of it coming out of the pen. Please do not touch the pen tip when it is hot, as it can cause burns.
For the 3Doodler Start and 3D Build & Play, the plastic is warm when extruded and is safe to touch, and the pen tip doesn't get hot. There is not any burn risk with the 3Doodler Start or the 3D Build & Play.