not quite sure

need a little more detail to figure this one out! Not sure what exactly you are trying to do. If it is to cut white decals of say an SP logo in HO scale you'd be on the bleeding edge.

 For sure it would have to be a fresh (as in new, first use) blade and the other big issue is Cricut's resolution is 144 DPI which is pretty crude. I think the paper would survive as you would only have to cut through the top film but I don't know if the machine is up to the precision required. Easy to test though.

Haven't done it

I haven't done that, but I'd worry about the cutting mat tackiness with the decal paper.

Yaron

You bring up a good point.  Medium weight paper can be done on the light grip mats with proper handling.  The standard green medium grip mat and the heavy mat will make a mess of paper when you try to release it from those mats. I've spent a lot of time cutting palm fronds on paper with a Cricut and with the very detailed edges it took some experimentation but it worked!

There are also some other tricks like purposely diminishing the tack on the mat and using adhesive tape along the edges of the item to be cut to stabilize it.

Yes I have Tried It.

Can work for larger lettering, but not so much for small. There is nothing to hold "words" together so you have to apply letter by letter. My biggest issue was getting letters off the light grip mat without them tearing. I think it would be better for something like stripes, or oddly shaped borders.

It would probably be simpler to just make a stencil or mask with the Cricut and airbrush the lettering.

Thanks guys...

Like I said just wondering since I don't have one... yet.  I guess that should be filed under "How not to make a light bulb ideas"

Make The Cut Software

Hi Steve,

There is a software package "Make The Cut" that supports printing and cutting out the printed items.

If your letters were not white...like graffiti...you could print them and then cut them out using a die cuttting machine.

It DOES support cutting letters using the fonts on your computer and you COULD use white decal paper...but there is a minimum letter size(around 1/4") before you start losing detail.  Once you have the letters cut, the spacing and alignment would be tedious. 

Graffiti might work

Bruce brought up a neat idea. If you have blank decal paper suitable for ink jet printers, it might work. You could do the print then cut feature and design those crazy shapes for graffiti on the sides of freight cars. I might have to try this out. 

Similar technique

I put a white shipping label on clear acetate and cut the centers out of windows and doors to leave the millions (and muntins to be accurate). After removing the label the “glass” shows through. Worked out pretty well.  
 

It seems that a sign could be cut the same way by applying the label to a piece of styrene and cut to size after. 

Rick was spot on....

This is exactly what I was thinking "If it is to cut white decals of say an SP logo in HO scale you'd be on the bleeding edge."   Sure would converting cars to the right road