From Robert Murray-Smith.

You can find the STL files for the vane motor here https://www.thingiverse.com/thing:6877603

and the STL files for the Di Pietro Air engine here:https://www.thingiverse.com/thing:6877649

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https://www.youtube.com/channel/UC4AkVj-qnJxNtKuz3rkq16A/join

Don’t forget to check out my companion channels TnT Omnibus here https://www.youtube.com/channel/UC1E8OmOG17VckoPviOPmkMw and TnT Talk Time found here https://www.youtube.com/channel/UCVaUhDJTviZ17K8vXnR1HjQ