MagicD ANET-A8 build plate support

thingiverse

The MagicD ANET-A8, available from Amazon, offers a decent modification of the standard ANET-A8 configuration by utilizing a 2040 extrusion structure. However, this design falls short when it comes to yaw support on the build plate around the Y-axis. A wheeled trolley system is used for translating the Y-axis, but the trolley's construction across the 20mm width of the 2040 extrusion results in an unstable (wobbly) rotation of the build plate about the Y-axis. To address this issue, support rollers are added to the underside of the build plate on both sides of the X-axis 2040 extrusion. The necessary materials include two replacement screen door rollers with a bore that fits a 10-32 screw as an axle, two 10-32 x 1" screws with nylon lock nuts, and four 5mm T-nuts. Note that the screen door rollers are attached to the support brackets via a cam sleeve, allowing for adjustment of the wheel's height to achieve proper support under the build plate. When installing the support bracket, first secure it in place on the X-axis 2040 extrusion with the shorter 5mm screw, then adjust and lock the cam to raise or lower the support "wheel" by tightening the longer 5mm screw.