Thanks airscapes. I did look online and while there are a number of CAD programs out there, both free and paid, for learning purposes I think that Tinkercad or MatterControl may be the best choice since they seem to have the lowest learning curve. Once I get the hang of this 3D printing I will look at a better, and perhaps paid, software like Simplify3D or 360 Fusion. Right now my focus is on learning how to design some simple things like fishing lures and how to set up the printer to print them. I will, in all likelihood, be on this forum with a lot of questions as I try to learn

Thanks again.