Your starting scene is a complete four-wheel robot. The assembly links the body dimensions, carrier positions, wheel shafts, housing and roof.
- Understand the wheel attachment. Click “Inspect wheel attachment” to separate a wheel, shaft and carrier along their common axis. The shaft enters the actual bore in the carrier.
- Select and customize. Click a part in the scene or component list. Change its dimensions in the right panel. Changes remain part of this assembly. Matching interfaces follow the shared body dimensions.
- Work on one component. Isolate it, save its editable project, or export its STL / OBJ. Hardware references are visible to explain the assembly and are not printable wheel or motor designs.
- Keep the entire design. “Save assembly” saves all component dimensions. “Open project” restores an assembly or a separate component project.
Mechanical limitation: a round hole positions an axle but does not secure a hub-motor axle against torque. Use measured metal torque arms, retention nuts and suitable fasteners. The model checks geometric fit, not load capacity or print strength.
Read printing and mechanical assembly guidance ↗
