Thanks one and all for the info and especially to Jim Banner for the attachment.
                                   Chet

  This is my first post because I have read A lot of threads and found answers to my problems.
Thanks to all for the info. I have a pretty long run (44ft.)that runs across a door and need to put a removeable section so I can access without crawling underneath.
   All my track is Bachmann snap track and switches. Could someone point me in the right direction
                                                 Thanks Chet