Collision detection

Hello,

I want to ask, if you can help me with a project i work on because i can not manage myself.

I have a random number of 3d elements (tcube...) on a 3d viewport and i want to add collision on x,y,z axes betwen these 3d elements when i move it with mouse.

I use Delphi 10.1 Berlin.

Please help
Gabi