All the useful info I've gathered regarding the info for making a Shogi-ban and koma.

shogi_set.txt

This is a related question in boardgames.stackexchange.com:
http://boardgames.stackexchange.com/q/10836/4779

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The measurements for the board:

Length . 33.66cm
Width .. 33.33cm
Height . 30.3mm

Measurements for the squares in the board:

Length . 36mm
Width .. 33mm

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The amount of pieces that I will manufacture:

King ........... 2
Rook ........... 2
Bishop ......... 2
Gold General ... 4
Silver General . 4
Knight ......... 4
Lance .......... 4
Pawn ........... 19

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The exact measurements for each piece.
Measurements provided in this order:

Height, width (bottom), thickness, angle (general, bottom > top),
angle (thickness, bottom > top).

King ......................... 32mm 28.7mm 9.7mm  81° 85°
Rook, Bishop ................. 31mm 27.7mm 9.3mm  81° 85°
Gold General, Silver General . 30mm 26.7mm 8.8mm  81° 85°
Knight ....................... 29mm 25.5mm 8.3mm  81° 85°
Lance ........................ 28mm 23.5mm 8.0mm  81° 85°
Pawn ......................... 27mm 22.5mm 7.75mm 81° 85°

I found out that middle angle is 117° and the tip angle is 144°.
source: https://www.i-tsu-tsu.co.jp/en/blog/shogi/864

given a board is 9 by 9 and a square is 33mm x 36mm, you end up with 297mm x 324mm (+ edge) for the board.
That gives a 27 mm difference in width/height of the board whatever size you make the edge around the grid.

As all of the pictures of Shogi boards I've seen indicate that this edge is (almost) equally wide on the sides and top/bottom, the given square dimensions of 33, 33 cm on 33,66 cm seem incorrect as this is a 3 mm difference instead of the calculated 27 mm

Watching one of the Youtube video's you listed (https://www.youtube.com/watch?v=h9zb5udfeWo) it's mentioned that the dimensions are 12 sun on 11 sun. As a "sun" is an old Japanese scale unit that corresponds with 3,03 cm, you would end up with a dimension of 33,33 cm on 36,36 cm

Information about the game itself, and also the resource of a lot of used pictures

Thank you all out there who helped this gist! You are the faithful guardian of the republic 🤞🌌

Type	Amount	Height (B)	Width (A)	Thickness (C)	[α] Angle	[β] Angle	[γ] Angle	Steps	Picture (with symbol)
King	2	32mm	28.7mm	9.7mm	81°	117°	85°
Rook	2	31mm	27.7mm	9.3mm	81°	117°	85°
Bishop	2	31mm	27.7mm	9.3mm	81°	117°	85°
Gold General	4	30mm	26.7mm	8.8mm	81°	117°	85°
Silver General	4	30mm	26.7mm	8.8mm	81°	117°	85°
Knight	4	29mm	25.5mm	8.3mm	81°	117°	85°
Lance	4	28mm	23.5mm	8.0mm	81°	117°	85°
Pawn	19	27mm	22.5mm	7.75mm	81°	117°	85°

Also list for promoted pieces if you wish to make them

Type	Amount	Height (B)	Width (A)	Thickness (C)	[α] Angle	[β] Angle	[γ] Angle	Steps	Picture (with symbol)
The dragon king (Promoted Rook)	2	31mm	27.7mm	9.3mm	81°	117°	85°
The dragon horse (Promoted Bishop)	2	31mm	27.7mm	9.3mm	81°	117°	85°
The promoted silver	4	30mm	26.7mm	8.8mm	81°	117°	85°
The promoted knight	4	29mm	25.5mm	8.3mm	81°	117°	85°
The promoted lance	4	28mm	23.5mm	8.0mm	81°	117°	85°
The promoted pawn	19	27mm	22.5mm	7.75mm	81°	117°	85°

Board

Measurements

The measurements for the board and squares on the board:

	Length	Width	Height
Board	33.66cm	33.33cm	30.3mm
Squares	36mm	33mm	-

The board structure

It's 9x9 squares available for players to move

9	8	7	6	5	4	3	2	1
									1
									2
									3
									4
									5
									6
									7
									8
									9

Woah bro. That is next level.

Your efforts will not go without reward from the universe 🙏

I hope I helped you out a little!

If anyone makes the set by this gist please post it below here! It would be nice to see your work (I will post mine to it's just under process 😃)

As per https://www.shogi.or.jp/faq/item/

Board (33.33 cm × 36.36 cm)
Vertical = 1 尺 (shaku) & 2 寸 (sun) or 12 寸 (sun) = 36.36 cm
Horizontal = 1 尺 (shaku) & 1 寸 (sun) or 11 寸 (sun) = 33.33 cm

Margin = 2.5 分 (bu) per side (7.575 mm or 0.7575 cm)

9x9 Playing Area (31.82 cm × 34.85 cm)
Vertical = 36.36 cm (12 sun) − 1.515 cm (2.5 bu × 2) = 34.845 cm
Horizontal = 33.33 (11 sun) − 1.515 cm (2.5 bu × 2) = 31.815 cm

Each Square yet not Really Square (3.54 cm × 3.87 cm)
Vertical = 34.845 cm ÷ 9 = 3.8716666667 cm
Horizontal = 31.815 cm ÷ 9 = 3.535 cm