On 11/20/2013 6:32 PM, John Doe wrote:
If it's for making custom parts, like for making your own parts
library, it's not important to me.


It is very likely that you will not need the 'solid tools' features.
With the free 'Make' version of Sketchup, you can create you own
3 D component, assemblies, projects, etc.

The free version does have most of the functionality of the 'Pro'
version.

The 'Pro' version does include some features for documentation and
layout that you might find useful. However, I strongly suggest that
you try the free version first. It will probably do all that you
want.



Dan