Tinkercad is a free, online 3D modeling program that allows users to create and design 3D models. To navigate around the 3D space in Tinkercad, users can use the scroll wheel on their mouse to zoom in and out, and to pan around the model. However, if the user does not have a scroll wheel on their mouse, or if the scroll wheel is not working, there are other ways to move the camera.
One way to move the camera without a scroll wheel is to use the arrow keys on the keyboard. The up and down arrow keys will zoom the camera in and out, while the left and right arrow keys will pan the camera around the model. Another way to move the camera is to use the WASD keys on the keyboard. The W key will move the camera forward, the S key will move the camera backward, the A key will move the camera left, and the D key will move the camera right.