Air Engine: Full CAD & Bearing options & TPU parts

Re-CAD designed Tom's great looking air engine so I can build it with the parts I've got. Redesigned it in OnShape (solidworks in the web, free to use noncomercial!) .. so anyone can change out parts. Highly modular design, already supports different bearings with a dropdown box. https://cad.onshape.com/documents/5a8da568a78765a191064348/w/5878093dc4752ff2db8cdbb9/e/cfa7ba4e13af942ad6d673b4?configuration=List_XgACmApBQce8yn%3D_6700ZZ I've printed TPU o-rings and a TPU diaphragm. Cad files are included. Print as high-res as you can (I used 0.10 mm layers with 0.2 initial layer).