Change gears (imperial) for EMCO compact 5 lathe

3D-printed change gears for EMCO Compact 5 lathe

EMCO compact 5 feed mechanism comes with 6 change gears
(for common metric threads): 20, 25, 50 and 3x 60 teeth

For uncommon threads or imperial threads additional change gears are needed:
26, 30, 34, 35, 36, 72 and 40 teeth

While you can buy them from EMCO in Austria and they are beautifully
cut from steel blanks, I wanted to print them on my 3d printer.

The gears are 5.4mm thick and have a bore 14H7mm with a keyway (approx 4x1mm