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Josef Prusa Shows Off Three-Hundred-Printer 3D Printing Farm

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A 3D printer that can print most of the parts for a whole new printer, that was the idea behind the RepRap project, from which the Prusa i3 was born. But, the more printers you want to print, the more printers you need. And of course, also a lot of space. The 3D printing farm at Prusa Printers has now reached 300 systems installed and working on parts production.

“As you may know, in the summer of 2017, we moved to a new building. Here, we finally have enough space for a new print farm. At least for the time being,” says Prusa Printers founder and RepRap community celebrity Josef Prusa. “If there ever is a robot uprising, it will start on our print farm,” he adds.

The new farm has 300 printers. The planned capacity is to have 500 printers in summer 2018. The printer composition is a mix of Original Prusa I3 MK3 printers and MK2S with the addition of magnetic bed with removable steel sheet plates. Using them reportedly saves a ton of time during the print removal for the 15 workers working here. The farm operates 24/7.

After the harvest, each printed part has to go through our thorough quality control, where it’s cleaned if necessary, holes get pre-drilled and its dimensions are verified. If a part does not hold up to our standard, it gets discarded.

When you take a look at the huge 3D printing farm you might ask yourself: “Wouldn’t it be better to just use injection molding?”

“Well, in some cases, it might,” Prusa explains. “Even though a single mold can cost tens of thousands of dollars, it could be more effective. However, using 3D printing gives us one huge advantage – thanks to 24/7 heavy load we can keep innovating and upgrading our printers as we have to resolve every found issue. And in that case, injection molding is no longer a better solution. A 3D printer can also create much more complex parts than injection molding. And our workflow is also way simpler. As soon as we come up with a part improvement, we just test it, upload new gcode to the print farm and within hours we start shipping improved printers to our customers. Basically, we are leveraging one of the biggest advantages of 3D printing to the maximum.”

So this how Prusa’s farm looks at the beginning of the year 2018. It has certainly come a long way but something tells us there is a much longer way ahead.

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