Use the extrude tool to cut away the excess stuff around the outside, and you now have a vaguely car-shaped block! To further increase the detail of the model, trace more silhouettes of the top and front figures of the car and cut them away as well.

Make sure the bottom of the body stays nice and flat so it can sit nicely on your chassis. All you have to do is create another sketch on the side of your block, look at your blueprint for reference, and trace a silhouette of the car's body with the line tool until you have a completely closed shape (Cut out holes for the wheels while you're at it, too). Now that we have this correctly scaled block, we can begin carving out the real shape of the car. What we are going to do, is we are going to 'carve' the body of the car out of this block. I like to think of inventor as a sculpting program more than a modeling program. simply create a large rectangular prism that fits the overall dimensions of the entire car. Create a new sketch on the same plane as the blueprint, while keeping the old one for reference. Now that the blueprint is scaled properly, you can start on creating the actual body. It will be very, VERY difficult to move the wheel spaces later if you mess up. Most importantly, you need to make sure the wheels of the blueprint and the wheels on the sketch match up as CLOSELY as possible. Use the scaling tools to adjust the blueprint so it fits the chassis sketch. Now, take that car blueprint and apply it to the same plane as the sketch. It doesn't have to be super detailed, just include the basic measurements you got from the side view on the picture above. Next, in Inventor, create a sketch XY of your chassis from the side. (Hint: Use the picture above to see exactly what parts of the chassis need to be measured.) The total length, width, and height of the space taken up by the spars, motor, and wires sticking out of the chassis on top. The distance between the rear axle and the rear end of the chassis. The distance between the front axle and the front end of the chassis. The distance between the front and back axles

But first, you will need to get a few measurements from your chassis. For the next step, you will need to use your car blueprint that you found earlier.

3d printed slot car