my sv01 pro already has a fan duct/shroud but it does a crappy job cooling more than one side. because of this I looked everywhere to find a new shroud but there was nothing. so I just designed one myself in onshape myself. at first the shroud went around the nozzle 360 degrees but the back would run into the hot beds kink protection so I made it go 270 degrees around and just add a chamfer to make it cool the back. of course it doesn't cool the back as good as the front and sides but its better that just the front side. I've printed about 5 medium size print with awesome results. if you have recommendations please leave a comment.