Hi David,
I had to take mine to graphtec themselves down in wrexham.
Originally was to be left with them for a day or two but steve the engineer was free so he dealt with it soon as i got there.
Im sure theres 2 engineers they have could be wrong.
But just wiegh up the options on them coming out as opposed to you going down there.
Was originally going to call engineer out but was a good 4 days wait nd couldnt wait at the time.
So theres Steve at graphtec other person everyone probably knows is Harry from edward mathias he normally helps with issues on graptec but not sure if they come out.
Oh and Granthams are in preston they sell cutters and printers etc might be worth trying them?