Thank you LrdSatyr8.
Not finished yet still on the arms. I`m working on another paper project at the moment that is a birthday present, and only have a couple of weeks to get it done. So this project is slowed down quite a bit till the present is finished.
I have not yet done any major design work yet, but I do have Pepakura, as it is necessary to have, as some files come as PDO format, in order to view and print those files. But I also have Blender and 123Design which are both 3D cad programs. As well I do have a couple of paint programs.
Your CAD program is probably your biggest investment, though there are some free ones out there, like Autodesk 123Design, Gimp and Blender. 123Design is a cut down version of Autocad which is freely available from Autodesk, but has the full support of the Autodesk network. It is quite acceptable for model design.
You have to have an unfolding program like Pepakura, but some Cad programs have addons available. Pepakura is the most reliable. The Viewer version is free but you have to pay for the design version, it`s not that expensive.
Paint programs run the gambit from Photoshop, if you can afford it, on down, you just have to choose what you can afford and what works best for you.
Jim