The Framers Forum

Hi. I have a Keencut Ultimat Futura mountcutter which is a great piece of kit. I have been cutting my backing boards on this for some time (cori cor) but I read somewhere recently that this was not a good idea and detrimental to the cutter? Any comments/advice appreciated.

I am not really sure that makes much sense at all. How is that detremental to the mount cutter?

I take it that you are taking more than one cut to cut the board, if so, then it should be okay

Thank you. I’ve been cutting the backing boards on the mountcutter for a while and have noticed some slight damage to the base but maybe the blade has been set too deep. I just wondered if this was common practice but thanks for responding.

You could still use a slip mat under the Cori cor board, same as when cutting mounts

Yes of course. Many thanks.. Learning all the time

Cutting Coricor and other varieties of kraft lined backing boards tends to have quite an abrasive effect on the blades which you use to cut such boards and it actually saves money to use the better quality blades to cut such boards as the better quality blades last so much longer that the cheaper types of blades. When I first started framing I bought the cheaper blades, but I was really surprised when I found some of the better quality blade to find that they accually stayed sharp long enough to cut about three, or four times as much backing board, compared to the cheaper blades.

Now I only buy the better brands of blades and my blades seem to almost last forever!