Mar 9, 2016

This week's assignment is "make something big" !!!
I made the low table that is called "Chabu Dai" in Japan.
In this assignment, I tried using "ShapeOko" that is one of the CNC machine. But our FabLab don't has this machine, so I borrowed it from Miyagi University.

04-1. Milling with "ShapeOko"

Left machine is "ShapeOko". It's so big!

Softwood plywood (W:900mm / H:1800mm / D:12mm) 1sheet

Software :Rhinoseros > Adobe Illustrator (MacOSX) > Universal G Code Sender(MacOSX)
CNC Machine : ShapeOko

*The detailed records are as follows. (in Japanese)
- Tutorial > How to use ShapeOko
- Photos > [FabAcademy2016] Week07 / How to use ShapeOko

1.Design the low table with Rhinoceros
First, I designed the low table that is able to put on a work table, because I wanted a desk to work with standing. And I exported svg data for CNC machine.

Rhinoceros Data > 160314.3dm , Svg Data > 160315.svg

2.Make a G-Code
I used MakerCAM that is a web based CAM program.

"File" > "Open SVG" File
Set an unit of grid for "cm", and put a check mark on "snap".

"CAM" > "profile operation"

I set each item as follows.
- name(The name of paths): 160315
- tool diameter(mm / Diameter of an endemill): 6
- target depth (mm / Thickness of an material): -12
- inside/outside(Cutting position): Outside
- safety height(mm / Position of an endmil): 5
- stock surface(mm / ??): 0
- step down(mm / Depth to cut by one operation): 3
- feed rate(mm/minute / Cutting speed): 1000
- plunge rate(mm/minute / Down speed of an endmill): 500
- direction(Rotatory direction of an endmill): Counter Clockwise

"CAM" > "calcurate all"

"CAM" > "Export gcode"
Save it as nc data.
nc Data > 1160315.nc

3.Attach the endmill
I used a square endmill(Φ6.0mm).

4.Set up Universal G-Code-Sender
Switch on the machine and connect a PC.

Open a nc data.

Set an origin position of an endmill.

Click "Visualize" button.

Turn on a head switch of ShapeOko.

Click "Send" button. Then Processing starts.

Under processing...


04-2. Assemble

I painted the table with"Urushi".
"Urushi(Japanese wood lacquer)" is a natural paint material which is gathered and refined from Urushi trees, which can mainly be found in Asia. Since the dawn of history, we commonly used wooden and earthen vessels coated with "Urushi" until we began to import porcelain from China. The techniques to decorate furniture and tableware, "MAKIE(Gold -lacquer work)"which is stuck powdered gold/silver or gold/silver leaf and "RADEN(Mother-of-pearl work)" , which is stuck sliced shells by using "Urushi", are well known as traditional craft works of Japan.
Lacquered "Urushi" has a uniquely pure beautiful shine, profoundly serene colors and gentle warmth of touch. Japanese have a particular affection for them and hold them in high esteem due to their unique ability to convey the richness of Japan's cultural heritage. In Japan, recently many artists consider "Urushi" an expressive medium of their own images other than that of more traditional practical uses like clay works and fiber art. They are discovering a new realm of "Urushi-work".
1.Kenji Toki Studio
The detailed records are as follows.

Created with flickr slideshow.