Rounded corners cut deeper than straight lines

[Goatshaver]

I don't quite understand this issue. This happens on almost every rounded corner job. 90 deg cuts don't act this way and I'm trying to figure out why rounded corners cut deeper then the rest of the cuts. Often it's ruin the sheet simply because one or two corners are cut deeper and you catch the liner when peeling the label. This seems like the dumbest question but this haunts me all the time and I just don't understand why.

 

[Boudica]

It happens to me sometimes with our Summa. Like a giant circle, and half of it cuts through the liner. Or it will cut through in (some cuts) about the middle, but on the sides it's fine. I mentioned this second scenario to a tech once, and he suggested that sometimes the force is different in the middle than on the edges, and I do test cuts all the way across to find a median. That takes a long time... so now I just test it in the middle. Sorry, that probably isn't helpful to your issue.
Maybe it has something to do with the blade... is it a tangential?

 

[Smoke_Jaguar]

Acceleration runs through curves, 90 degree cuts are basically 2 cuts with a short stop between.

 

[Broome Signs]

you need to set the cutter nose correctly , basically the knife is sticking to fare out.
PB

 

[netsol]

if it only shows up on rounded corners, doesn't it sort of sound like a condition similar to tramming being out of adjustment?

 

[bob]

As previously noted, the blade may be a bit too long. That and it also appears that your tool carriage may be a little slow on the uptake which can be dealt with by removing any dust cover on the tool carriage and blowing out any and all accumulated dust and crud with a bit of air. Pay special attention to the tool up/down mechanism. It only takes a tiny amount of contamination to screw up the various timings involved in tool movement.

I've written about the blowing out any carriage contamination countless times and I'm tired of doing so. So read it, learn it, know it, be it.

 

[Solventinkjet]

I'm tired of doing so. So read it, learn it, know it, be it.

If I have to say change your dampers and cap top one more time!

I've run into a few times and it's always been a hard one pin down. I agree with bob, clean out the blade holder for sure. Check your cut strip for major divots or non flat surfaces and replace if necessary. Try slowing down the speed to see if that helps. If it does, your media may be buckling causing the issue.