Abstract: A system for electro-writing of a polymer melt comprises a print-head and a feed mechanism configured to controllably feed solid polymer base material towards the print-head, wherein the print-head comprises a nozzle, a heater and an insulating spacer, wherein the print-head is configured to eject the polymer melt via the nozzle, wherein the nozzle is configured to be held at a selectable electric potential, wherein the heater is arranged in the print-head and proximate the nozzle, wherein the heater is configured to heat the solid polymer base material beyond its melting point to create the polymer melt in the print-head, wherein insulating spacer is arranged between the heater and the nozzle, wherein the insulating spacer electrically insulates the heater and the nozzle, and wherein the insulating spacer is at least partially surrounded by the heater.

Abstract: A system for electro-spinning/writing of a polymer material, the system comprising a print-head configured to eject the polymer material via a nozzle, a collector configured to receive the polymer material ejected from the nozzle, a displacement assembly configured to adjust a distance between the print-head and the collector, and a vat containing or configured to contain a liquid, wherein the vat is further configured to receive the collector, wherein the displacement assembly is configured to retract the collector and at least a part of the polymer material received by the collector into the liquid in the vat in accordance with a height of the received polymer material.

Abstract: A production device for layer-by-layer manufacture of a three-dimensional object, comprising a feeding device for feeding in of a starting material, and an application device for melting the starting material and for layer-by-layer shaping of the melted starting material into the object, wherein the feeding device comprises a drying device for drying of the starting material, or a drying device is connected upstream of the feeding device.