Post moved.
Please read the section headings to best determine where to place your post.
I don't use the collision detection at all but I would say that you could over-size your pipes and equipment to allow for the working space, do your collision detection and then when happy re-size back to normal (that is assuming you can resize from the centre of your pipework).
Otherwise I would say you will have to model the working space separately, check that with your collision detection and then run your pipework in that space.
And of course check for collisions again with the pipework just to be sure.
Barry.
One of the forum moderators.
Versions 6.5 to 27
i7-10700 @ 2.9Ghz, 32GB ram, GeForce RTX 2060 (6GB), Windows 10
Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11