I have full blown cad software and most of the Vectric suite of 'design' software, but as I said in my post above, I am having the most success with the entry level Invent software. Very easy to use, can take parametric values, etc,. The best part is I have NEVER had a printing failure because of the software. I have created some items that didn't print but that was based soley on the loose nut on the keyboard! For background I am a model maker and do mostly 1/4 inch scale models up through 1/8th scale detail parts. I am not affiliated with Cubify, I just like the product and their customer service. Russ

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