So I'm running a D&D 5e campaign, and so far have been doing "theatre of the mind". But it has it's limitations when I want the players to use actual combat strategy in some areas. I have experience a few years ago with using a 25mm paper grid for 3.5e and Pathfinder, which worked well because it was quick to draw a map with whiteboard marker.

Now I have a 3D printer, and I'm wondering if anyone has any dungeon tile recommendations, considering the following:

Firstly, are there any systems that are quick to assemble/disassemble as the players discover new rooms, or we need to clear table space?

Second, stability of the map is important. If a player knocks the map with their hand, will everything collapse, simply shift slightly, or is it rigidly held together?

Third, community: A larger community that contributes (and takes contributions) would be better than a propriety system that doesn't allow homebrew designs.

I've seen a few systems (openlock, openforge, and almost any keyword combination that I can think of is on kickstarter), but I'm finding it hard to get a feel for how popular the systems are, and how well they actually work when on the table.

Does anyone have any recommendations on a good system? I guess i'm most interested in the game flowing smoothly, but I'm not opposed to going to a blank paper grid if that's really the better solution.

The recent post on foss software got me thinking about viable foss alternatives, particularly non programming related.

I just came across FreeCAD and am wondering if anyone has experience using it, how it compares to Solidworks, Autodesk, Rhino or Catia?

I was shown Kicad at uni by a ladtech and was very impressed, way easier and more flexible then whatever microchip software they where teaching.

On a broader level what other professional ffos alternatives do you guys know about?

Is anyone using this stuff on a professional level or is it more hobby at the moment?

If there aren't many 3D printer hobbyists here, still feel free to comment if your interested. It's a great hobby open to all price ranges and skill levels. If you can't afford a printer, many libraries and schools have printers open to public use.

What are your projects? What do you like to print? Materials? Printer? Etc.

I've been getting into 3D printing more seriously. I have worked with cad software for many years but only printed on occasion, never personal stuff. I bought the Prusa Mk3 kit at the end of last year and patiently waited for its mid-spring arrival. It's a fantastic printer worth every bit of waiting. I print in PLA for fun stuff & online models and PETG for functional & outdoor models.

My most recent print was a window fan mount for my car for car camping. I designed it to create some airflow to keep the car from getting stuffy while keeping bugs and water out. It's very low power, so no issue there.

I am currently printing the pangolin awareness toy from thingiverse in white PLA for fun.

What do you like to do with 3D printing? or what do you think of it?