File:Train Air Signal pieces.jpg

The air line casting at the top is from Railroad Warehouse. It is an old Railroad Supply part which I cut apart and adjusted as needed with 1/8 brass rod to achieve the correct spacing. The 1/8 45 degree angle castings are hard to find so I recycle them as well. Posted by Robert Williams on Chaski.org, http://chaski.org/homemachinist/viewtopic.php?f=8&t=89536&start=105