When I was studying, I was too poor and didn't learn anything. Hand-painted, effect diagram, three-dimensional, rendering was a mess. It was lucky to find a job. Later, I worked slowly and studied slowly. Then I was still not good. I was not talented and lazy. Later, I went with the flow. This stage should belong to the stage of half a bucket of water. The process of self-exploration is quite painful. There is no standard for appearance. The boss's standard is the standard, or find a big brand for reference, self-doubt and self-denial, then self-affirmation, repeated tearing, and want to make something different.

Wall grinding machine scheme I

Wall sander strip indication

Wall grinder 2, as if the plan is this

Electric circular saw II