Prusa 3D i3 MK2S pen holder for PCB production

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Prusa 3D i3 MK2S pen holder for producing printed circuit boards Producing printed circuit boards involves several key steps: Designing the board in Eagle, a computer-aided design software, is essential. Once designed, export the file as an HPGL format. To prepare the HPGL file for printing, go to File -> CAM Processor in the Eagle software. Choose Device: HPGL, Mirror, and Positional Coordinate settings. This step ensures accurate processing of the file. Next, process the HPGL file with ThmqGCU.js to generate G-code. Import the local file and save it as a new code. It is crucial not to check Interpolate Arcs by Lines at this stage, as it will lead to incorrect results. Similarly, do not select Skip redundant G-codes, as Prusa printers cannot interpret them correctly. To refine the G-code, use a Lua script available on GitHub (reprap-prepare.lua). This script resets the printer's origins, interpolates arcs (G3 command), and adjusts coordinates to positive areas if necessary. Manually move the 3D printer to the left-down corner of the PCB board. Then, execute the refined G-code as demonstrated in a YouTube video (VaR_bT9Ytkw).