September 16, 20205 yr I am building an electric VSI and DI for my Piper Cub to make accurate flying easier on long journeys. I am hoping the final product will be battery powered and less than 1" thick. I am currently testing barometric pressure and magnetic sensors. I have a pi zero, arduino uno R3 or teensy 4.1 to use for this project. Can somebody recommend a stepper motor and driver to give a smooth 315deg rotation for the VSI and 360deg rotation for the DI? I am assuming that a stepper motor with less than 1 degree per step will be better then a servo for moving the needle? I have been looking at the X27.168 but cannot find a genuine one in the UK and also I am finding it difficult to find which driver will give the smoothest rotation using the small numbers of reviews and similar projects on the web. Finally can someone recommend where in the UK to get the gauge facias laser engraved and where to get plastic casings and bevels 3d printed? Any advice would be much appreciated!
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