I only start to work with TC and have many quiestions.
1. I draw a cylinder of 12.8 mm height. But when later measure have 18 mm of height. All another sizes are good. Why?
2. I need draw a full part from 2 cylinders different sizes. But I don't know to unite those.
3. I can t use fillet. Try to pick out lines but can t to do this.