Prusa SL1, an open-source 3D resin printer for $ 1,599

Famous Czech manufacturer Josef Prusa, behind the open-source 3D printers of the same name, recently unveiled a brand new SLA machine, the Prusa SL1. In the continuity of its expansion – the company today employs 320 people, Prusa has decided to expand its range of 3D printers and turn to another technology, stereolithography. His new SL1 machine is based on the MSLA process and would consist of a rigid frame. This improving its stability and thus the final impression. It is already available for preorder from $1599 and should be delivered next December.

Prusa is one of the most recognised manufacturers on the market, including its 3D kit printer, the i3 MK3 whose design has inspired more than one. The Czech wanted to extend its expertise and embarks on another technology, stereolithography. He joins the Polish manufacturer Zortrax who announced the release of its first Inkspire resin machine a few days ago. Will Prusa manage to compete with players already well established in this niche like Formlabs with its Form 2 or more recently the Slash + from Uniz?

The 3D resin printer and its post-processing machine

The technical specifications of the Prusa SL1

According to the manufacturer, the 3D printer includes a 5.5 “high resolution LCD screen and has a print volume of 120 x 68 x 150 mm. UV light cures an individual layer in 6 seconds before the tray rises to form another layer. As for the structure of the printer itself, it is composed of a rigid frame. The frame offering more reliability and stability according to Prusa, but also a greatly simplified plateau calibration. The SL1 would reach a layer height of 0.01 mm.