airwaves on Vinyl Film rolls

[amlow 0]

When I inseart new vinyl film rolls to the cutting plotter

I can see horizontal lines of airwaves.

that happen even before I even start working with the plotter, and sometime during the cuttting work.

that problem cause to the final work not to look accurate

Any Idea?

[MZ SKEETER 4,709]

you should put more info,,  what is airwaves?  describe.  what cutter?, what vinyl?  can't help you without info. 

[BannerJohn 1,324]

I know what you mean and that usually only happens with cheap vinyl.

[Rodger 527]

   I have 1/4 turn mosiac metallic that tunnels ( seperated from the backing paper ) . I have cut decals thru the tunnels & it comes out great most of the time . If a section is tunneled very bad , I cut that out & use it to make smaller decals  . Seems the roll ( 30 yards ) did that more as it got older , but it may be that it does it as the roll gets smaller

A buddy who has been making vinyl decals for over 30 years told me to unwrap several yards , but I rolled it tight & used a rubber band to keep it that way .

[amlow 0]

airwaves = air ripples that horizontally appear on the vinyl sheets(randomly i must say).

I use 11 yard, 24" vinyl film rolls from china.

BannerJohn is right because it is cheap vinyl.

when I told them about this problem they said I need to re-debugging my cutting plotter.

[Guest sciondrgn]

Yeah thats what most folks call tunneling, I have a roll of chrome that does that.. What I do Is cut off the sections i need size wise and not run the roll through the machine and I dont have any problems.

[amlow 0]

Thank you for you help , I will definitely try that.

[jhelms 5]

I buy some vinyl local by the yard and they wrap sometimes in a very tight roll and when they do that i have tunneling but i work mine out pushing it to the closer end, never no problems on rolls of vinyl jhelms