More kerf while cutting than before

[Steve Busey]

Is perhaps your manual focus tool out of adjustment (maybe dropped on the floor once)?

If you have a 2" focal lens, see if your lens-to-material distance is 2.0".

[Martin Boekers]

One other thing to check is that the I-Beam and table are level to each other.

You can test this by using the manual focus device.

Put it place, turn the x-y axis off so you can move the lens assembly.

Manually adjust the focus so the manual device is just touching the table

Now manually move the lens assembly throughout the table and four corners

If the gap is consistent then the table and I beam are level... if it's not you will
have to level the table to the I-Beam. If that's the case Epilog can run you through
that procedure for the machine you have.

[Kevin Gregerson]

Try pulling back the focus a little. Usually when the kerf is wider at the top than the bottom you've got it too close to the material.