LESSON TEME: Computer-Controlled Machining
We visited Yamaguchi Center for Arts and Media (YCAM) to use Shopbot. Figure  shows the Shopbot. Shopbot is a kind of large scale millng machine, so Shopbot can mill or sculpt large size woody board. Shopbot can be control from a personal computer by using the dedicate software.
Cutting Out by Using Shopbot
Adobe Illustrator can design for outlines cutouted by using Shopbot.
Figure  shows "VCarve" Software for Shopbot in which several outlines are there.
I designed several different types of skateboard for my final project.
The first step to cutout layouts by using Shopbot is to fix a board on the cutting space.
The board we used has 1800mm long and 900mm wide, and the thickness is 9mm.
I fixed the board on the shopbot by using several spikes .
Then, I turned on the power switch of Shopbot
and sent the command to begin cutting the layouts by using dedicated software.
Figure  shows an appearance that Shopbot cutout the layout from the board.
The cutting paramenter is the followings.
Drill : Up cut Square 6mm diam.
Cutting Speed 30mm/sec.
After about 30 minutes, Shopbot completed to cut the all layouts . I picked up the cutouted parts and filed the outline by using sponge files. I finally got the original skateboards .
One of the skateboard was used for my final project. Figure  shows the product of my final project; This is DIY electric skateboard. After this cutout process, I enclose the board with several clothes with epoxy resin to harden the board. The details of the process to harden the board is decribed here.