Plot preview in color

I've been changing over from .ctb plot styles to .stb plot styles. A little less than half of the drawings preview in color. Some of them preview in both color & black & white. Does anyone know why this is occuring?

Has to do with your settings in the .ctb file...if you don't set the particular colour to a line and weight in black...then as you see it in the preview...that is how and that ebtity it will plot. takes a bit to set the colours all up how you want them.

We have a variety of .ctb files...for printing in black and white...printing in black and white with some colours printing in colour...and for printing in all colours.

You are more than welcome to my .ctb files if you want mate.

Ahh...that could be .stb files...who knows...I'm drunk at the moment...mwhahaha

Yeah, I checked ALL my plot settings and they are set to black. With or w/o lineweights, they should still preview in B & W but they don't. Even when I change the .stb plot file they still preview in color. Of course my plotter black toner so they won't print in color but the preview does not show properly the lineweights or screening.

Drunk already? What's your poison?

aha.....you are holding your tongue on the wrong side of your mouth....change sides........

Rum...what else could it be? .......

I will look into it sometime over MY LONG WEEKEND....yup...long weekend.....woot

Gary,
Check the colors in the layer manager.
Sounds like you have colors beyond 255.....

For example....
Do you have a layer....

A-Door ..... color=124,12,145.... continous linetype... etc etc etc

If you colors are being define via RGB settings... then CTB will not be able... to define those layers to black and white...

CTB only set the colors 1 thru 255.....

Using the PANTONE color system or any other form of RGB will not work with CTBs.

Hope that helps.

A number of my layers do have a 3-color combo but will this effect them when plotting w/ .stb files? I will check into this. I was thinking that maybe all the xrefs in the file haven't been converted over to .stb plot styles yet so I'm going to check into that as well on Monday. PANTONE??? I've never heard of that one. At the same time, certain files will NOT preview in color but most are doing that. I'm not getting the lineweights I have assigned also but I am just now playing w/ the plot styles per LAYER.

NO.... The STB is set by catagories... in terms of layer names....
NOT color....

In any case, the 3-combo color is uneffective with the use CTBs.

You might be onto something with the STB.

you might also ... look into setting the lineweights into the layer.
this option doesn't require CTB or STB...

You only need to click the lineweight button at the bottom of your screen....

But you might have to set all the layer to white...
To avoid the screening...

When you plot ... select NONE for the pen table...
And what you set in the layers should work.

I've been playing w/ the plot styles in the editor and it it fixing my lineweight problems. The point that a few of my xrefs were not converted to .stb styles was a factor but not the complete problem I had hoped for. I have changed a few colors to be one number .vs multiple & that helps...
Question... Is 0,253,253 a one color plot? Some of them even have a 24,0,24 color type. I think this is confusing me.
I'm wondering what the upmost factoe in ALL of these settings is...ie which setting is the one that will help me most w/ the least amount of work. I am playing w/ these settings now and will get back w/ my findings.
Thanks guys.

24,0,24 are the RGB settings for Dark Purple.
0,253,253 are the RGB settings for CYAN....

i would sort the layers by color and then select the layers accordingly and change the colors to NORMAL color NUMBERS....

NOTE:
To figure out the other RGB setting colors....
Open PAINT...
And double click on the color pallete... and click define color...
the color editor should come out...
Enter the code.... in the right hand column for RGB...


Good luck.

Okay, now that I've got my plots previewing & plotting correctly, thank you very much, I keep getting this error when plotting that reads:
"This version of AutoCAD was not installed properly & some features may not run correctly. You should reinstall AutoCAD immediately to make sure all features are working properly. Do you wish to continue anyway?".
I click YES and AutoCAD continues w/o any additional problems. Anyone want to take a stab at this?
BTW RGB & PAINT were a great help.