6840 Poor cutting in a stright line

[Mr Bea]

Hi All
Just having a few problems with my 6840, it has been cutting fine and now it seems to be perforating the cut (mount card) rather than cutting a neat line. The corners seem fine it is just the straight lines. Does anyone have any ideas.

Many Thanks

[endcan]

Sounds like alignment check the beam.
If its in the centre check it downwards, is it better in 2 directions?
also oil the runners.
What speed are you working at?

[Mr Bea]

Hi
Finally found five minutes to have a look at the forum and noticed your reply, so thanks for that. It turned out to be the PSU, replcaed that and no problems since.