Hi Curt, Thanks for your suggestion. Unfotunately, it does not work. I specified %scratchworkspace% as the Clip-output filename (I'm using 10.0), but the filenames default to the original problematic formatting (01_Clip.tif, 02_Clip.tif, etc.) as soon as I validate or run the model. I tried a similar approach yesterday by inserting a string variable names "scratch" and specifing "%scratch%" as a prefix to each filename. The same problem occured, however. This seems as though it may be a bug within the version of Model Builder that I'm using. I'm surprised by how difficult it is to control the filename of intermediate datasets. If you construct a an intermediate filename using a built-in variables, the system won't modify them when the model is validated. (Note, %scratchfolder% is 10.1 only, %scratchworkspace% would be used in earlier versions). For example: %scratchfolder%\clip_%n%.tif will be interpreted at runtime as D:\work\scratch\clip_0.tif D:\work\scratch\clip_1.tif ... Depending on the iteration, the built-in iteration variable used could be either %n% or %i%. Hope this helps!
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