Looking much better, as to the line across the top most anytime that has happened to me it was because the board move up or down during carving I have never had it happen as a result of using the pause feature which I use sometimes to brush away the dust to see how things are going.
Bob I used to do a pause on long cuts to see what I was getting and never had a problem until a coupe of weeks ago I pause it cleaned it and let it go again and had a step in the cut because it was off by about .005". I don't do that anymore and the machine has a tolerance of .004" so I blame it on that.
Ok, I am ready to try another one. I took one of the provided "picture frames" that came with the software, added some text & then inserted another picture that came with the software (cross) into it.
Text is white as you can see. The "background" around the cross looks darker black then the rest of the background, but it doesn't appear to cause any problems when I preview it.
I am leaving it on the default size for the "picture frame" (File # 03-015) 170mm x 231.8 mm x 6.0 mm as well as the Scan Step 0.2 defalut & Feed Depth Per Cycle 28.2 default. I thought that the Tool Type should be GVee_R 1/32".
The only thing you might run into with it only being 7x9 inch is the text may be hard to read. Maybe not? you don't know till you try it. If it does come out like that you can make it bigger OR get one of the 1/50" bits and keep the size you want.
Another thing I use scrap wood and the .4mm step setting to find out if I like what the machine does then I get a real nice piece of wood and change the step and bit to the smaller size for a final cut.
The reason is like you said before I hate cutting 5 or 15 hours only to find out I hate the out come. Sometimes I can tell after about 30 minutes that I like the cut and move on to a final board.
After a while you get a real good feel for what the cut will be and you can skip most of that except when you experiment .
I would tend to believe that in that small 7 x 9 area you are looking at some very small letters, and because of the white color and cutting 6mm deep you are not going to get a good effect . A lot of letters that I have tried that small tend to chip out on some of the letters, and all it takes is one that's messed up to ruin the project. Only thing that might help would be to get some blur into the letters, straight up and down profile is risky, but you can try it like Greg suggested on some scrap wood.
Greg & Bob, Thank you for your insight. I was worried about the text size also. I can speed it up a bit & give it a short test run, then if it looks good, I can slow it down & use my 1/50" bit. I was using this 7x9 size because that was the "Parameter for Best Results" size recommended with the picture. I coud also try to make the picture bigger I suppose???
I never paid much attention to the recommended carving size because most of the stuff would all be very small, you will actually get more detail by going larger on the supplied images ( did the 3 masted ship all the way out to the 13" limit and it looked great). I believe from what I have carved that the I-Picture software magnifies the image you input by maybe 2x, so if your image is smooth(not pixelated) at 2 or 3x when you view it , it should carve okay. I know because I used an image once that had poor definition and the machine actually carved the little square pixels into the piece.
Thats why I resize most of my pics before I ever start working on them I figure if its too big in I-picture I can just make it the size I want plus I now make my size to fit the wood I'm going to use if I-picture has to shrink the pic thats ok but if it blows it up it may be wrong.
Here is the final result. I selected "Slow" to proceses it and used the 1/50" bit.
I ended up with lines in the edges of the frames & not sure how that happened. Recall that in the previous project "Toothless" from How to Train Your Dragon, I had a single line running across. This one has multiple lines running across. Some are single lines, some double & 2 of them are triples. See next attachment.