If you already have Zen Toolworks 7×7 or 7×12 3D Kit, and want to lower the gantry for regular milling and engraving, here is the set we have prepared for you to swarp the gantry to lower the Z axis. It includes the replacement parts of 17, 18, 19 and 20 & 2 bearings. So you can still easily change back to 3D version when you need it. The is for Zen Toolworks CNC 7×7 or 7×12 Kits.
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