We have uploaded a few things we have made over the years for others if wanted...
This zip file includes the Inventor ipt's, stl's and bambu print files.
The riser is 4 main pieces, and then the connectors for them. Use the short connectors (x4) for the X1C pritners. Use 2 short and 2 long connectors for the P2S printers (Long goes in the sides).
This riser raises the lid 1" higher, has no holes in it for breathing. We are using these risers on our Bambu Printers in the lab.