Feb 15, 2015

Producing 3d printing filament on commercial scale

Here is a Make: interview with Josh Smith, owner of Makergeeks.com about how 3d printing filament is produced on more industrial level for mass markets.
The most interesting thing about it is explanation of complexity of the technology used and need for exact temperature control in several steps.
Also the fact that the final diameter of the filament is not produced by different exit nozzle diameter but all filaments are pulled trough the same nozzle and the diameter is achieved by applying different temperature.

Source: Make

Laser diameter sensor control unit