Single piece corners for the top 2020 Extrusions for Trident and 2.4. 

• Positions the panels and creates a cleaner look than if you have 2 or 3 individual corner pieces. 
• Seals gaps in the aluminium extrusions to prevent leakage of hot air and bad fumes (inspired by https://www.printables.com/model/507336-2020-top-corner-for-voron-24-trident)
• Optional Rear Corner version that also compresses the panel foam(for 3mm panel + 3mm foam)

BOM:

For each Front Corners: 

4x M3x8mm SHCS

4x M3 T-nut with springs

For each Rear Corner:

6x M3x8mm SHCS

6x M3 T-nut with springs

Assembly instruction:

1. Print upside down with no support.
2. Push them in place, straight from above. Any misalignment makes them hard to fit. Might require a tap or two with a rubber mallet due to the internal structure to prevent leakage.
3. Put the spring T-nuts in place
4. Screws
5. ?????
6. Profit!