Where is that millimeter?

[corsita]

Hello,

I am driving crazy in trying to find a millimeter. I have this very easy model, where 5 objects side by side totalize to 197.5 cm. But if I measure all 5 together I miss 1 millimeter and the size is 197.4

What am I doing wrong? Here the file.
bar_test.skp (1.5 MB)

PS: what I am drawing will end up be a bar. And because the first try ended in so many mistakes, I ended up redoing it from scratch. I am a Sketchup beginner.

[slbaumgartner]

You have the display units set to just one decimal place. Try increasing it to two places via Model Info->Units and then update the dimensions and you will see the correct addition. The parts are actually the correct sizes, but the display precision is causing rounding of displayed values.

[DaveR]

With a few more decimal places.

Turn off Length Snapping, too.