linear rail system 3d model

linear rail system Create a precise technical CAD model, isometric view, SolidWorks/Kompas style. Two parallel straight horizontal round tubular rails (like long pipes). A rectangular flat skateboard-style carriage platform moves linearly along these two rails. 6–8 V-groove wheels with deep grooves mounted on both long sides of the carriage. Wheels wrap around the outside of the round rails from above and sides, rolling parallel to the rails. Visible servo motors and electronics under the carriage. Telescopic vertical column (2-3 sections) attached to the center bottom of the carriage, partially extended downward. At the bottom of the column — 3-axis pan-tilt-roll robotic head with clearly visible servo motors, gearboxes and bearings on pan, tilt and roll axes. Clean gray metallic colors, sharp edges, high mechanical detail. No text, no labels, no arrows.