To hold the axles in place, you can use straws as axle holders. Cut the straws into smaller sections that match the width of your car chassis. Glue the straws onto the foam chassis, and ensure they are straight on the foam board. The straighter they are the straighter your car will dri...
and mechanical engineering 101 in college, and Fusion 360 felt right at home. It perfectly fits between basic shape based tools like tinkercad, and the math based 'parametric' modeling tools. You get to draw any 2d shapes you want then use advanced ...