Using GPT-6 Astra to drive a 148×238cm D&D tabletop print project
The author treats a giant D&D tabletop as a game production: Astra first blocks out the town in primitives, then generates printable 3D buildings floor by floor.
Finally found time for my small (big) side project. I always wanted to print a full table for our D&D campaign. The table is 148 x 238 cm, that's a lot of surface to fill. The classic way is months of foam, glue and paint, so I'm running it like a game production instead, with GPT-6 Astra driving. 1. Astra blocked out the whole town in primitives first. Boxes standing in for houses, roads, open squares. We also made a small mood reference so we both knew what the town should feel like. Everything is cheap to move around while it's still a box. 2. Buildings I generate in 3DAIStudio. Image reference for each house first, then the 3D model from it. Getting the picture first matters: a house I don't like dies in seconds instead of after the model is done. I kept switching generators inside it, some houses came out better in Tripo 3.1, some in Hi3D 3.0, it's all in one box there. It also plugs into your agent over MCP. And Mesh 7.1 is landing there soon, promising 4k resolution, will see. 3. We drop the finished models back into the blockout and keep filling until it reads like a town instead of a pile of props. Street widths, where the open space goes, what's tall, what's low. 4. Now the part I'm starting today: cutting every house into floors. Ground floor, upper floor, roof, stacked so they lift off. Roof comes off, you play the top floor. A house that doesn't open is scenery, and I want the party to go inside. The generator only gives me the outside, so every floor gets a floor plate, walls with printable thickness, doorways wide enough for a base, stairs where they make sense. First batch goes on the printer as I finish cutting. 148 x 238 cm is going to keep that printer running for weeks and I'm fine with that😄 To be continued...