The question came up at work yesterday about if it were possible to draw pipes in Revit at angles of less than 5°.

With a bit of tweaking, it is possible, but personally I would be wary that you would be modelling something that isn’t actually constructable as fittings at less than 5° are not available in the real world.

So what is the tweaking you ask? Check out the video below

Although bends of less than 5° are not a real world fittings, this may be an acceptable solution in a situation where say a corridor has slight bends in it (oh architects!), or you have to reticulate pipework around a curved football stadium; on-site a contractor may be installing plastic pipe that has a little flex in it and will be able to achieve that slight bend that you just can’t model in Revit.