Which is better for treating wood with sandpaper or shavings? Next, let's do an experiment. A pine strip is divided into two sides. One side is treated with 600 grit sandpaper, and the other side is treated with a short planer that has just been polished with a 10000 grit grinding stone and swung over the blade.

After simple treatment on both sides and cleaning of residual wood powder in the sandpaper area, the sandpaper on this side feels smoother and whiter in terms of texture

Based on existing data analysis, the effect of wood processing with a planer blade finely ground with 10000 grit grinding stone is not stronger than that with 600 grit sandpaper. Of course, these are two different tools for different purposes, but there are occasional voices on the forum pointing out that something cannot be treated with sandpaper (without saying why it will affect the sound? What basis is there? To be verified). From the observable data, I think that at least the precision of treating the contact surface with sandpaper will be much higher than that of metal cutting tools (such as the feet of qin and horse, corner wood, sound column, etc.), and the bonding quality of the adhesive will also be improved.