Creating a rotating portalgun

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Introduction
So, we are going to create rotating stand with portalgun shooting portals.
Prepare models
You will need:
prop_dynamic -- models/props/pedestal_base_reference.mdl -- name: stand_bottom_model prop_dynamic -- models/props/pedestal_center_reference.mdl -- name: stand_top_model Just create and name them, we will move them after next step
Prepare brushes
Create:
32 to 32 square, height 4 -- nodraw texture 4 to 32 sq, height 55 -- nodraw texture
Moving etc.
Move stand_bottom_model where you want to have the stand, that small doors on it have to be under ground. Then move stand_top_model above stand_bottom_model, as on picture //soon// . Center 1st brush, that 32x32, with stand_top_model, Z axis to half of stand_top_model (approximately). And move 2nd brush as on picture.