Have a look on Youtube… may be a video or two.
As for materials, Polyethylene is the most common material. Almost all thermoplastics really (Polyamide, Polypropylene, PVC), all inserted in powder form. heated to about 250 degrees C.
Have a look on Youtube… may be a video or two.
As for materials, Polyethylene is the most common material. Almost all thermoplastics really (Polyamide, Polypropylene, PVC), all inserted in powder form. heated to about 250 degrees C.