Marking Tools [Sumikake-dougu]
A moment
6 Tools for showing curves
1.Ruler
The bamboo straw is squeezed from both sides. The bamboo straw part is movable, which is used to copy its shape along curves such as the cross section of the log and to transfer it to other surfaces (see photo).
How to use Osa Ruler
2.Mouth
It is used to further improve the accuracy of the surfaceRuler. If you combine the processed parts and move along the reference surface along the side that serves as the junction of the mouth drawing, the curve will be parallel to the processed surface (see photo). The machining surface is fine-tuned to the line several times to improve the accuracy of the finish.
How to use mouth drawing
From the left, Ruler.
3.Dieboard
The Ruler made by the carpenter for himself to make it convenient for the work at that time, such as the slope of the roof of the shrine architecture.
Dieboard
- ＊The contents of this page are excerpts from "Takenaka Carpentry Tools Museum Collection No. 5: Ruler Sumikake, Marking Gauge, Drills".
- ＊The names used in the museum are mainly based on the names of tools used in the Kansai region. The name of the tool may be different depending on the region or researcher.