Used the same mesh as originally published, though reduced the inner width slightly. Perfect for covering the 4040 extrusions on an Ender 3 V2.
The author remixed this model.
Adjusted the dimensions slightly as I found the original to be slightly too wide, causing a small amount of bowing. Reduced the inner dimension by ~¾ mm, which seems to be working well, to 22.65 mm between inner points.