Laptop rubber parts with Cooling Assistant.

thingiverse

It was originally designed for Think Pad E580, but I realized that other laptops share similar thickness and dimensions. You can successfully print both designs using TPU, which is highly recommended. While PLA will work fine, make sure it doesn't slip because if it does, it may damage your laptop. To prevent this, you can add a layer of paint or glue. The hook gap starts at 15mm and ends at 13mm with 40mm underneath. I've printed the old version using TPU material, and it works great without any wiggling, providing an ideal angle for typing on your keyboard. Note: To achieve optimal results, print the "thinkpad legs" file with a resolution of either 0.16 or 0.12 and 100% infill. I highly recommend printing them using TPU material to prevent slipping. Alternatively, you can use PLA and add a non-slip layer by applying glue or paint.