Multirotor motor level
thingiverse
Decided to ditch store-bought levels that required constant adjustments, so built my own. Dismantled the spirit level from a Harbor Freight level to repurpose it in this project. Measured the vial at 9.47mm X 32mm, then printed a custom holder with a 9.5mm diameter tube that fit perfectly. A small amount of glue and it's working flawlessly now. The vials themselves can be easily sourced online by searching for spirit level vials or bubble level vials. Swapping one out from a cheap level was faster and cheaper than ordering a replacement, so this DIY solution turned out to be the way to go.
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