granularityA public build log, from zero to a coordinated rover-and-VTOL fleet, one granular detail at a time.https://granularity.ai/Two phone stands, both ugly, both workhttps://granularity.ai/writing/two-phone-stands-cad-to-print/https://granularity.ai/writing/two-phone-stands-cad-to-print/Finished the Onshape design and printing exercises. Designing was the easy part. Getting the parts from CAD onto the print bed in one piece was the actual fight.Sun, 19 Jul 2026 00:00:00 GMTCAD fundamentals done, now the smokehttps://granularity.ai/writing/onshape-done-onto-soldering/https://granularity.ai/writing/onshape-done-onto-soldering/Onshape fundamentals are in the bag and the bench is live. Now frying components on purpose, and a few by accident, through Make: Electronics.Thu, 16 Jul 2026 00:00:00 GMTWhy the big rover comes after the Pupperhttps://granularity.ai/writing/big-rover-after-pupper/https://granularity.ai/writing/big-rover-after-pupper/Sequencing a 40 kg machine behind the systems-engineering week: build small and stupid, then big and smart.Sun, 05 Jul 2026 00:00:00 GMTTwo wheels, clean odometry: Rover v1https://granularity.ai/writing/rover-v1-differential-drive/https://granularity.ai/writing/rover-v1-differential-drive/Why the first rover is a differential drive, and how its ros2_control interface ports straight onto v2.Sun, 14 Jun 2026 00:00:00 GMT