The various additive manufacturing techniques that have been developed over the past couple of decades or more are now not just well-established tools for their original application area of rapid prototyping, but also for actual production. But in that latter role the take-up of the technology has always been impeded by a number of persistent factors apart from the intrinsic slowness of the fabrication technique itself. These include the fact that the machines tend to be bulky standalone pieces of equipment and that they require manual unloading of finished parts.
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