Construction of the back shop for Ellis is almost complete.  Construction has now started on the roundhouse.  The roundhouse will be constructed of cast hydra-cal for all walls and the foundation. I started to make the windows for the roundhouse out of brass bar and rod stock, but found it to be very expensive (a  little over a $1/per window).  There are some 134 windows in the roundhouse plus they would not match windows in the power house or shop, so windows will be the same as the rest of the buildings.  Pictures to follow later.