Print time error (1 reply)

I have noticed a printing time error on several recent projects. Perhaps I have just not noticed before.

One project took about 1 hour longer to print than the G-code file's ppredicted ~3 hours. Another project to an extra 20 min when 2 hour 20 min was predicted.

What might it be that causes these errors? Can they be corrected?

If you are pricing a project and use estimated time to print rather than actual, you can err in the project cost.

I'm using Repetier Host and Slic3r, latest versions

Thanks,

Bob