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This video shows some improvements I’ve made to my CNC router, including the base and enclosure, an inexpensive micro-adjustable leveling system, beefing up the structure of the bed and gantry, improved dust collection, and conversion from the original router motor to a water-cooled spindle with a VFD controlled by the CNC controller I built.
I used a 2.2KW Water Cooled Spindle Motor and VFD Kit from amazon.com.
Here is a 3D model file for the dust hood that attaches to the spindle as shown in the video. This should fit any spindle with an 80mm diameter. I printed it in PLA filament using my 3D printer: