4 PCS Joint Plate, TTZEZE Surface Anodic Oxidation Black L Shape Corner Bracket Plate 5 Hole Outside Joining Plate for 2020 Series Aluminum Profile

The 4 PCS Joint Plate by TTZEZE has garnered attention from customers primarily in the 3D printing community, where its utility in reinforcing and stabilizing structures is appreciated. Many users have purchased these L-shaped corner brackets with the intent of improving the integrity of their builds, particularly for supporting components like the gantry in 3D printers. While the plates serve the purpose of holding aluminum extrusions securely in place, there are mixed feelings regarding their thickness and the anodization quality. Users have noted that the plates are robust and keep components firmly anchored, thus making them suitable for more extensive, industrial-style projects. However, the thickness has presented challenges, especially in terms of compatibility with smaller screws. Some users found that typical screws were either too short or too long due to the substantial material thickness, complicating installation efforts. Additionally, expectations regarding the anodization finish have not been met. Several reviews indicated that instead of anodized aluminum, the plates received were coated in thick black paint, which not only detracted from the aesthetic but also led to issues with flatness and edge definitions—important factors when precision is key in assembly. Overall, these joint plates are perceived as a practical and cost-effective solution for reinforcing structures, yet potential buyers should be aware of their thickness and finish, which may not align with expectations for a more polished and refined look necessary for detailed projects like 3D printers. **