AM8 Z-Axis Fine Adjust Stop
Description
This is just a simple Z-Stop for an AM8 frame. One part mounts to the vertical frame near the left z-motor and the other mounts to the motor. There are holes to allow screw mounting the limit switch and a hole for an M3 adjustment screw. I criss-crossed a small rubber band over the top of the adjustment bolt and over the bottom portion that protrudes through the mount. The rubber band provided a continuous slight tension that prevented the screw from moving over time. I'm not REALLY sure the rubber band was needed, but it made me feel better ;) One other note. To align the switch with the bolt, loosen the switch bracket mounting bolts and move the switch up/down until it is aligned such that the bolt will press squarely on the switch paddle. Update: 3/10/2019 I updated the motor mount design to fix an STL error. I also increased the hole size slightly to make it easier to initially thread the 3mm screw into the block.
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