There are some good ones at www.rickyjordan.com on electrical routing. If you are doing piping then I am not sure. Also, check you tube. there are often some short videos there at well.
Is there a specific area you want to know more about?
I am actually pretty good with this, just haven't used it in awhile. I appreciiate the prompt response. Once I started on my current project, the memeory started coming back. :-)
John,
There are some good ones at www.rickyjordan.com on electrical routing. If you are doing piping then I am not sure. Also, check you tube. there are often some short videos there at well.
Is there a specific area you want to know more about?
Chris