Solving common issues with extrusions

…There are a number of common errors…that people encounter when they work with extrusions.…This video will address some of these pitfalls and help us to avoid them.…One of the first issues you might see is…a spline that just doesn't seem to close and the…issue here is not a problem with your extrude…settings, but it is that your spline actually is open.…Typically, by inspecting one of these splines, you'll…find that there is a small gap somewhere.…And you can close that gap by turning on Close Spline.…When you turn your extrude NURBS back on, you'll…find that you have got a nice clean extrusion.…

Another issue is that people will draw their…splines in something other than the xy view.…A simple correction is to just take your spline and rotate that…object 90 degrees so that it is sitting neatly on the xy plane.…Another option is to go into your Extrude settings, and turn off movement…on the z axis, and add it to one of your other axis.…Another, somewhat related issue, is that sometimes you'll get…an object that seems to be skewed or distorted.…