How to polish the nozzle of Gundam model completely flat?

1. Cut off a part, leaving a nozzle of 2 to 3 mm..

2. As shown in the sketch, the pen knife cuts a knife upward from one side of the nozzle.

3. Then cut upwards in the opposite direction.

4. After the nozzle is cut small, it is easy to cut off. If the nozzle is large, the above steps can be repeated. The picture shows the parts after the nozzle is cut off.

5. After cutting, the surface of the part will be slightly uneven. Players who pursue perfection can use sandpaper to polish. What is used here? 600? 1000? 1500 sandpaper.

6. Be sure to grind in the same direction when grinding, and remember not to grind the parts back and forth. The grinding sequence is from small to large, and then grinding in turn. The picture below is the polished part!