For 2D, I usually use Adobe programs such as Photoshop, Illustrator and etc,.
				
And I've been used Rhino or 3D max for lecture and working process.
				
 Since I would like to give a little change to my work process, I decided to find a new tool which is more light and simple.
				Autodesk Meshmixer
 
				
				  Few weeks ago, I promised a cat tower to my friend who lives with lovely cats.
				
 When I googled 'laser cutting cat tower', there were several types of leser cutted cat towers like this.
				 
				
  These are samples more. 
				Samples 
				 So I draw two toroids and combined them to one object in Meshmixer. Then saved it as an obj-file.