With a Rotatrim cutter it's easy to cut along the width of roll paper and get a square cut that won't cause paper skew. I've done this quite a bit and gotten good results. It is going to be far more problematic cutting along the length depending on the size of the cut. Rotatrim do make a 48 inch cutter which would do this but the cost is pretty steep so you would need to do a lot of prints to make up the cost.
Hi Alan,
I certainly agree that the RotaTrim cutters can provide an excellent cut depending on the maximum size the cutter can handle. I've been using RotaTrims in various sizes since 1974 and have never had any issues with them. As a matter of fact, I still occasionally use the 14" RotaTrim I bought in 1974 and it just keeps cutting along almost like new. I also have a newer 14" as well as a 24" and could not do without them.
However, all of that aside, if I'm it reading correctly I do believe the OP is referring to cutting the actual roll to accommodate smaller print sizes with less wastage etc. For example, cutting a 24" roll down to 13" for use in a 13" printer. I have seen this topic her at LuLa and I believe there were several methods that all seemed to be viable if I recall, so I imagine one of those members will chime in again on this thread as well. I will say that it does seem rather strange that Hahnemuhle wouldn't provide the 13" rolls of that paper here in North America as well.