cabinet design using blender

Hi BlenderFolks

I do some woodworking , specially cabinet design and im willing to use blender to design/prototype my stuff

I could use the most of the features and can do some design with success, but, the way i do expect to work is to :

  • draw some wood sheets with a fixed defined thickness
  • attach them at their corners (instead of extruding the parts)
  • group them as a single object, and , when clicking on one part of the grouped object, select all parts of the object, to move
    all objects together
  • scale the object, preserving fixed the thickness of all objects involved

and on a second stage, set some hinges to be functional, to test the feel of the objects

So far, my progress is that i’ve found transformation lock which works as expected
Unfortunately, i havent found a way to link the ‘sheets’ by their corners. The best i could do is group select and scale.
The problem is that on non square objects, the pieces scale nicely but start to have gaps between them.
Parenting all of them to a null object is not working too… somehow the z axis locking for each object are ignored and the z axis is scaled too

thanks a lot for all the tips and ideas