Doug Rowley published a new build:

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I printed the dust shoe designed by Ronn Folk (X carve dust shoe with use with cnc4newbie z axis by ronnfolk). I modified mine by making the shoe one piece rather than cutting it in half. As it shows, I used 20x20 v-slot for the slides. I found it necessary to change my z axis end stop switch location as it interfered with the spindle moving up and down inside of the shoe. I made the left 20x20 longer to mount the switch high. I also used corner bracket to trip the switch. I used a door sweep brush from Menards ( big box store).