Wheels, Standoffs, and Internal Components

1. Modeling the Standoffs

• Create a rectangular block to wrap around the bottom rail.
• Snap it into place along the bottom rail using vertex snapping.
• Adjust the height to ensure proper alignment.
• Extrude downward and inwards slightly to match the reference shape.
• Duplicate a pre-existing hex bolt and washer.
• Position bolts on both sides of the stand.
• Mirror (Symmetry) the standoff for the opposite side.

2. Creating the Wheels

• Create a cylinder and align it with the wheel position in the scan.
• Adjust the radius and height to match the reference.
• Move the cylinder into position against the standoff.
• Model a U-bracket using an existing standoff piece.
• Adjust the bracket height and thickness.
• Modify bolt size to fit through the bracket and attach the wheel.
• Ensure proper positioning using the center snapping tool.

3. Adding Wheel Detail

• Perform insets and extrusions to create depth.
• Scale faces inward and add bevels for smooth transitions.
• Use "collapse" to simplify internal geometry.
• Duplicate and position a hex bolt and washer at the center.
• Apply auto-smooth to fix shading issues.
• Adjust smoothing groups to create realistic light transitions.

4. Duplicating the Wheels

• Select all wheel components, including the bracket and bolts.
• Apply a symmetry modifier to mirror them to the other side.
• Adjust the mirrored position to align with the scan.

5. Position Adjustments

• Compare the model’s wheels with the scan and reference images.
• Move the wheel assembly slightly backward to match the scan.
• Scale up the wheels to match the size in the reference.
• Lower the wheels to ensure they rest on the ground.

6. Finalizing the Brackets

• Modify the bracket to ensure it fully connects with the frame.
• Adjust height to match reference images.
• Apply symmetry to reflect the changes on both sides.