I've learned just enough of Freecad to make some parts to print on my 3D printer. There are lots of good video tutorials to learn from on Youtube and a Freecad forum member in Germany really went out of his way to help me with a problem I ran into. I've been using AutoCad for decades and more recently Draftsight for my 2D drawings but The 3D printing stuff required me to delve into Freecad. Most people jump into Fusion360 but I don't think it will be long until they start forcing everyone to pay to play as they are starting to do with Draftsight after many years of free use. Freecad is open source and revised regularly and will do everything the other programs can do.
I loaded the program onto my desktop computer then opened the youtube tutorials (1-10) on my laptop and followed along step-by-step. That allowed me to pause the video so I had time to locate the buttons because they move a little from version to version of the software. I did some of them a couple of times to figure out what I missed while looking for buttons.
I didn't use it after the first go around because I didn't have a 3d printer. When I finally got one 6 months later I had to do the first tutorial again to remember the setup info. Here's the first one:
Page 1 of 3 - Mirror Design Using Fusion 360 - posted in ATM, Optics and DIY Forum: Hot dog. Fusion 360 does finite element analysis. I wanted to test the idea that a mirror with a convex back and thin edge would be much lighter and easier to support with low distortion than a flat back...