Well, I've been trying to learn FreeCAD, off and on, over the last couple of months. I'm finally starting to get the hang of it. CAD programs are hard enough to learn with no prior knowledge. But when you have to forget about, and unlearn another CAD system as you are learning FC, well it is a lot harder, at least for me. I use Alibre Design Personal Edition. I just do it for fun you might say. I'm not a professional. I'm just a tinkerer.
OK. So here are a couple of screen shots. One of my first really successful FC parts. (more than just a box )
And also my target project which I hope FC (or more correctly, OCC) will some day be able to handle.
This is something that I'm not sure about the copyrights, etc, etc, so I'm just showing the "picture". Besides, the file size is over the forum limit of 512KB.
I have, or rather my son has, the machine this would go with. It isn't available on the market. It is a DIY project.
Constructing this part is really just a lot of lines and arcs. Thanks to the folks on the forum for leading me in the right way to become more efficient in my sketching. In retrospect, really pretty simple.
And now... heeerrrrre's QCGB (quick change gear box)
You'll notice a fillet in the center cavity, on the edge of the ledge. If I try 2 fillets, OCC coughs up. But you get the idea.
And this is what I hope to be able to accomplish someday with FreeCAD.
I'll keep practicing on all of the different parts until such time as I can finish the difficult ones in FC. By that time the Assembly module should be finished and I can show the finished product from FC.