Adjustable Gantry with Under-Slung Trolleys

REBUILD THE GANTRY GEOMETRY. Do not change the basic dimensions. Create ONE standalone adjustable gantry consisting of: Two parallel longitudinal aluminium I-beams, each 4500 mm long, nominal 100 mm deep. Both beams run in the X direction. Maintain 1800 mm clear distance between the inner faces of the two I-beams. With 100 mm beam width, the beam centreline spacing is 1900 mm. Install two 100 x 100 mm aluminium square-tube cross beams PERPENDICULAR to the I-beams. They run in the Y direction and physically connect the two longitudinal I-beams. The square cross beams must be located DIRECTLY UNDER the two I-beams, approximately 300 mm from each longitudinal end. There are only FOUR vertical adjustable legs total. One leg is located underneath each end of the two transverse square cross beams. Therefore the structure is: 4 legs → 2 transverse square beams → 2 longitudinal I-beams above them. Do NOT create additional portal frames or separate floating beams. Add four 500 kg beam trolleys underneath the longitudinal I-beams, two trolleys per I-beam. Hang one vertical lifting chain downward from each trolley. At the four intersections between the longitudinal I-beams and transverse square beams, show only a small simplified marker and label: FLEXIBLE CLAMP CONNECTION Do not design or interpret the clamp geometry. Overall longitudinal length = 4500 mm. Clear internal width between longitudinal beams = 1800 mm. Top height = 3000 mm for the current concept model. The finished model must look like one rectangular mobile gantry when viewed from above.

Parameters

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