I have completed my Falcon III, built to print and covered. I have noticed that there is a certain amount of friction when I manually push the pushrods. The push rods pass thru mylar tubes that are glued in place. The tubes were installed as per the plans from Goldberg. I think it is friction on the side walls at the curves where the tube makes a shallow curve. Is there anyway of reducing this friction without re- laying out the tubes? The plane is covered. Is it possible to spray some sort of lubricant into the tubes?
Your advise on this would be greatly appreciated.