Just to save cables I decided to 3d print a cable chain. All stl files can be printed without supports. The chain will be printed in one piece, needs a bit of force to brake it. If you decide to print it I do not take any responsibility for any problems.
The first file is a stiff bit of the chain. Print on the side so no supports needed. File is here.
Then you need 13 chain bits. In the stl file there is 10 so you need to print the file twice. File is here.
Chain-bracket-lower file is here.