Adjust the Outside Oval Rotation if you are getting Bumps or Feathers between where the blade plunges in and where it retracts from the matboard on an oval V-Groove.

The Outside Oval Rotation field in the V-Groove configuration controls how much the foot block will rotate before cutting.

The outside cuts of the V-Groove are exterior cuts, and cut into the matboard and not the V-Groove fallout. They cut on the second pass of the V-Groove, and are cut in a counterclockwise direction.

If you have too much Outside Oval Rotation on an oval V-Groove, you will get a Bump, too little rotation and you will get a Feather. 

The blade returns to the outside of the starting point on the outside cut of the oval V-Groove, creating a Bump.

Decrease the Outside Oval Rotation.

The object will now cut correctly.

When making adjustments, click either the minus or plus button (-/+) at the end of the desired field about five or six times in the direction indicated. Click OK and do a test cut. Check the results of the cut and continue making adjustments until the desired outcome is achieved.

The blade returns to the inside of the starting point on the outside cut of the oval V-Groove, creating a Feather.

Increase the Outside Oval Rotation.

The object will now cut correctly.

When making adjustments, click either the minus or plus button (-/+) at the end of the desired field about five or six times in the direction indicated. Click OK and do a test cut. Check the results of the cut and continue making adjustments until the desired outcome is achieved.

Select this topic to see information on the Inside Oval Rotation (V-Groove) to adjust the rotation for the inside of the oval V-Groove.