The ordinary whetstone doesn't work well on this steel plate.
Fortunately, it's not too hard. It can be ground with a file and also with a bumpy iron block refined by 'Smarty Pants'.
Grinding it will make iron filings fall off.
But the speed is incredibly slow.
The efficiency is very low.
Because its surface is very uneven, with significant ups and downs, you can't grind it like this.
Tools are needed.
What kind of tools?
A pedal-operated grinding wheel.
Put a grinding wheel on a rod, with the ends of the rod each inserted into a wooden column.
Wrap a string around the rod several times, without overlapping, with each end of the string connected to a pedal.
Pedal to make the rod spin rapidly.
The grinding wheel will also spin rapidly.
Press the grinding wheel with your hand, pedal hard, and the grinding efficiency is much better than hand grinding.
Ma Lin is not afraid of fatigue.
He's gradually understanding how to work with metal.
