Hi all!

New here, but having a strange problem.

Sometimes, the measurements in the measurements box are displayed very weird. When I use the Tape measure tool to see how wide something in my model is, instead of just giving me for example "5mm", the box says "**~**5mm".

I've searched on the internet, but can't seem to find out what this "~" means. Also, when i export my model to have it printed in 3D, the measurements of the model are totally wrong (either way to big or way to small.. )

can anyone help me?

thanks in advance..
cheers