"on purpose"

What is that purpose?

The error is up to 5cm if I zoom out. That is not trivial. And even with 5mm error, if you have twenty short segments and you dimension one and multiply by twenty, you end up building skewed walls 10cm off.

It is understandable that there is no millimeter ...

Casual user here, using SH3D intermittently (currently 7.2) and I'm quite frustrated with the dimension tool. It needs to snap to corners and edges, but it doesn't. I have already had a couple of mishaps today with dimensions being off by 5mm despite best efforts. I simply can't use the tool with ...