Precision of machining down to 1 micron with a DIY lathe - . This takes DIY to the next level.
2 Cylinders go in and out so easily that they spin.
Produced with a 1 micron accuracy lathe/grinder.
- External grinder wheel makes for high precision.
- For inner bore, use a small driven grinder wheel - 
- A design for AIrf Bearings by Applied Science that use machined graphite, and 3d printed enclosures - can also be hand machined