I liked the tray DannyW281 created for the Ender-3, but I wanted something sized to fit my Longer LK5 Pro. I kept the part of the design that hooks onto the V-slot extrusions, and added it onto a tray of my own design.
This fits on the front (or sides) of a Longer LK5 Pro.
These were shown in my Longer LK5 Pro Review video.
BV3D_Longer_LK5_Pro_Tray.stl | 5.9KB |