I have seen some really great pictures and suggestions for way covers. Some were nice formed metal telescoping covers and look great. I have been using the type of cover depicted in the accompaning pictures on my Bridgeport for about ten years and they are still good. The one advantage that they have is that they are easy to clean with a vacuum cleaner, also, they are oil and water proof. The material is 1/16" Buna - N rubber that I purchased from McMaster Carr Supply Co. The framework is constructed from 1/2" square tubing and the rubber is clamped to it with a piece of 1/2" angle iron. The mount to the head isn't very elegant but it was much easier than drilling and tapping holes in the head for mounts. The geared clamp holds everything very rigid and doesn't interfer with rotating the head if need be.
OM