Wow, I jus walked thru all 20 pages... great work people! Love seeing all the designs.
As for a freecad mark, I have 3 thoughts I wanted to share.
1. Letters. Letters are overdone in the icon world, especially in, oddly enough, the design apps. Ai, Ps, F ( autodesk fusion360), F (Figma)
2. The caliper is the single, best physical object to indicate a 3d modeling app, imho. If anyone has a better candidate, I would love to know of it.
3. The final thought is regarding the name, FreeCad. This describes what the app is: its a free, as in libre, computer assisted deisgn tool. There is also of course librecad, libreoffice, librecmc, so this notion of putting free before the tool category is fairly common.
But really, a name does not have to describe or categorize something anymore than a mark or icon has to use the first letter of that name.
For instance, look at Blender and its mark at blender.org. Or Sketch and its mark at sketchapp.com Or the new sketch/figma app being built from the ground up for linux called Akira https://github.com/Alecaddd/akira
Both blender and akira are fully open and free software, forever, but the word free or libre is no longer necessary, it's implied. Of course we are free and open source, like all the best software. It's understood. Not to say that libre should not be clearly stated in a tagline, just that it doesn't have to be part of the name anymore.
So with these thoughts in mind, Im suggesting we begin to consider a new name along with the new mark and icon.
One name that keeps coming to mind, again seeing it along side Blender and hopefully Akira, is this:
Modeler
Your free and open 3d modeling app, formerly known as FreeCad
Or maybe Modelo
modelerapp.org and modeloapp.org are both available.
Finally, the last thing I want to do is offend anyone who been here many years longer than I have, hammering away diligently with out pay to make this app the amazing, outstanding, and basically mind-bogglingly rad piece of the software that it is. I am only suggesting that the name and mark continue to evolve to reflect the maturity of the app and secure its rightful seat in the modern pantheon of free and open source apps.
A big thanks to all those folks. It took me about a year to get the hang of freecad and then its just kind of clicked. Now I just love it.
OS: elementary OS 5.0 Juno
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.18.15697 (Git) AppImage
Build type: Release
Branch: master
Hash: dedaa807629ab25cf32977d30bf7610f1346aff7
Python version: 2.7.6
Qt version: 4.8.6
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: English/UnitedStates (en_US)