3D printing the Curta's zero positioning disc

I printed this successfully twice. The first time I used my 0.4mm nozzle. This time I used my 0.25mm nozzle. The ratcheting for the non return pawl worked with both prints, but it came out much better with the 0.25mm nozzle. If I didn't have a 0.25mm nozzle, I would consider altering the design and straying from the original engineering drawings slightly.