You will need:
1. Print the parts cfs-riser-bar-left_Remix.STL - 1 pcs and cfs-riser-bar-right_Remix.STL - 1 pcs and Leg.STL - 4 pcs.
2. You will find the corner connectors, front and rear panels in the original publication. If you do not need the inscription "Creality K1 MAX" and vents on the rear panel, then you can print the file FrontBar-v2_Remix.STL.
P.S.: the parts Fix_0_6.STL are only needed if your riser moves a little freely in the installation places. If this is the case, then measure how much it moves and print Fix_0_6.STL, but scale the thickness before printing.
3. Two pipes with a diameter of 16 mm, 428-429 mm length.
4. Install the riser with pipes (and fix if needed) on the printer, mark the holes in the pipes with a marker for fixing with screws. Remove the pipes and drill holes with a diameter of 5 mm.

5. Reassemble the riser with pipes and fix with M4 screws length - 40...50 mm.
6. Glue a strip of EVA tape 2 mm thick to the legs, as shown in the figure.