I am building this designe (85% complete) and it is a good one. The Gantry is bulletproof. There are good examples for using 3D printed parts without loosing precision. I had a bit of trouble with the carriage, so I used OpenBuild Plates for that (works perfectly).
Large inexpensive build that can cut a 4x8 ft sheet with room to spare. Can be built using only a 3D printer and standard parts -- no special CNC'd plates required.
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