Hi! I probably have a problem with my lifting platform. I missed a basic frame some time ago on my Twin Busch 2 pillar lifting platform, because I mainly screw on heavy cars. For a better feeling when working. This base frame stands on a straight concrete base area. I aligned the columns exactly vertically on the base frame. The base frame is neatly anchored with the floor. So far so good, now I noticed when I tilt a vehicle about 1-2cm, that can be clearly perceived with the eye. Now to my question, is it normal that the columns incline inwards when loaded? I really care about that. Actually, the part should still stand vertically. Or do I have a mistake in thinking? I could counteract that, that I let the columns in the relieved state slightly tilt outwards. In the original construction instructions it is only to position vertically. Concrete floor + base frame u I wanted to hear your thoughts about the problem. Greetings, Michael.