Build Plate Leveler 1/2" Diameter x 3/16" Thick

thingiverse

Easily adaptable for Harborfreight magnets, 1/2" diameter x 3/16" thick, as that's what was available in store. Compatible with Duplicator 3, 4 and Replicator models. The item number at Harborfreight is 98405, which are called "Craft Magnet Discs," but they don't seem to sell them online. Simply print with supports and place the magnets while the build is still warm from the printer. I utilized a bit of hot glue to secure the magnets in place, and it worked flawlessly. Don't forget to also use Harborfreight's digital indicator item#93295 (http://www.harborfreight.com/1-inch-sae-metric-digital-indicator-93295.html) for enhanced functionality.