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The side panels

Today, I continued working on the 4-sun "Knock Box." However, since I mainly worked on the 6-sun box, there was only a little progress on the "Knock Box."
The weather has been clear for the past two days, so I would like to resume working on the 6-sun 27-steps puzzle box that I started making last week. Today, I shaved solid wood for the outer panels and first attached the side panels.The side panels of this box use two types of materials, which are divided into two colors right in the middle. So, I cut and attached them carefully to align the joint at the center of the box.

I often create designs using two different colored materials, but they are actually quite challenging to make. The most difficult part is ensuring that the joint aligns perfectly in the center. For the side panels I attached today, the process of simply cutting and attaching two types of wood evenly is not too difficult. However, the tricky part comes when attaching the Kannuki(slide keys) panel, which I will work on from tomorrow. This Kannuki panel also needs to have the joint aligned exactly in the center. The problem is that the panel is divided into three sections, and during the cutting process, the width of each section slightly changes. This means that even if I cut the two colors evenly at first, the joint position will shift when I divide it into three parts. Normally, the Kannuki is attached to one of the two materials. To compensate for this, I need to make that material slightly longer. The process involves initially cutting the board about 2.5 to 3 mm larger than the actual size of the box panel, then trimming it down using a saw. Then, I carefully attach it to ensure that the joint aligns perfectly in the center.

For today's Knock Box work, I attached the bottom panel to the frame parts I made yesterday. This bottom panel, of course, serves as the base when the box is opened, but it also has another important role—it strengthens the structure of the box. The bottom panel connects the two axis panels, so it is best to use a material that is less affected by changes in climate, such as plywood. For this box, I used a 2.5mm MDF board. Even though I try to make all boxes in the same way, slight variations in size still occur. This happens because the process is not entirely machine-made—each step involves handwork, and it is difficult to apply the exact same amount of force throughout. Therefore, when attaching the bottom panel, if a piece doesn’t fit perfectly, I slightly shave it down to match the box. These variations are very small, usually around 0.1 to 0.2mm.
I will continue working on these tasks tomorrow as well.