Head scratcher weeding issue?

How small are we talking?

Also, I have found that if it's really small, leaving it for a day or two, sometimes some vinyl will separate.

You mentioned that your using avery and a laminate. I assume that it's printed graphics. If not, use a regular high performance vinyl. The laminate is probably the cause of theach issue...

Or you can weed after installation...

 

If you are talking about square cut or circular decals sometimes they weed better doing it from a different direction...top down, bottom up...lots of variables.

 

Try setting your blade deeper. Blade depth makes a bigger difference on my D750 than the other settings.

 

It would be helpful to see a photo. Stick with whatever works well for you. Make note of absolute everything including temp and humidity. If one variable changes you may have to adjust another.

 

Maybe remove the blade and clean the holder to make sure it does not have any stuck bits of vinyl or dirt. Then reinstall with a couple of drops of machine oil or white lithium grease to make sure the blade turns freely.

wayne k
guam usa

 

Unreliable and weird cutting results? All settings tested?
You're answering your own question, the settings are not the problem!
What you're left with is either a material, or hardware issue. But I'm gonna go ahead and assume it's not about what brand vinyl or laminate you're running. So according to my analysis, it's a hardware issue, most likely you need to replace your cutting strip. that high downforce you're fond of is quite mean to the strip.
Run your fingers across the length of it, I'm certain you'll find grooves and cuts meaning it's time for a replacement.

 

Check the cutting strip, then the blade, then the force. If you are not giving you a consistent good cut the only thing left is the blade holder. The holder must also be cleaned and oiled. Sounds like the blade is not turning freely in the blade holder.

 

Check your blade with a loupe, it probably needs changed. Ours get "mysteriously damaged" here occasionally, I think a bit of grit gets picked up by static off the floor sometimes and the blade tip gets chipped off. However, if taking the blade holder out and re-seating it "helps" then your machine probably needs lubricated or calibrated.

 

We were having similar problems with our Roland and we oiled the holder and it would work for a time then go back to frustration. Eventually we just replaced the blade holder and it has been much more consistent.