This 3-axis test ran fine until a battery failure at 2.5 hrs into the shoot required me to hot wire a replacement to the system. The effect can be seen around 00:25 where the dolly move speeds up unnaturally, it also caused reduced movement on the tilt and pan movements. The tilt being the more pronounced as the camera view should have been much lower on the return trip, otherwise an interesting experiment. Certainly relaxing sat under the trees for a 3 hours ;)
TB3 was loaded with the Dragonframe Arduino sketch and the DP S0 powered by a stepper using the TB3 third output.