Last year, I wrote an article about a RepRap 3D printer, called the Isis One, that had ticked off some members of the RepRap community. After overcoming the initial reactions from other RepRappers, the Chicago-based company, Isis3DTM, kept on chugging and has released their latest upgrade, including dual extruders for soluble support.
Now that the Isis One features dual extruders, it’s capable of 3D printing plastics like ABS and PLA from one nozzle and water-soluble PVA from the other, greatly expanding the types of objects that it can fabricate. The manufacturers claim that it’s easy to automatically generate support structures that can then be dissolved with no fuss. The dual extruders are a part of the company’s new printhead design, which uses “driven feed wheels, geared to provide 135 N cm of torque, three times the industry standard.” The new design also features a small melt chamber that is meant to more tightly control the filament to minimize “ooze and stringing.”
In addition to the second extruder, the Isis One uses dynamic bed leveling, with a probe fixed to the printhead that allows the printer to compensate for minute discrepancies in the surface of the bed. The printer’s heated borosilicate glass bed allows for what Isis3D believes to be better first layer adhesion and has a large build volume of 300 x 300 x 225 mm (12 x 12 x 9 inch). With an LCD Smart Controller console, the printer can fabricate untethered to a computer. All of this can be purchased for $2399, which includes starter spools of PLA and PVA filament and a KISSlicer Pro license.…
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