I have used TurboCAD for years to draw before I build and just to create contraptions. I had used Autodesk Inventor a couple of decades ago and always wished for a similar program that didn't carry with it that $$$$ price tag. I played with this for 8 hours yesterday going through all the tutorials as well as Eric's videos on YouTube.
This is GREAT! There really should be a donation button somewhere.
Now to put my flight simulator in to motion...