I find it useful to classify the 3D printers for
the manufacturing market to four segments. The major segment, for producing usable parts, is
Additive MANUFACTURING. The Auxiliary
segment is for producing parts that support anther industrial process like
investment casting or sand casting. The only printers that available today
for mass production of parts (Short series) are the powder bed printers. SLS for
plastic and SLA and EBM for metal. No other technology can give a fight
to powder when it come to the number of parts per job and the
mechanical properties of the printed parts.
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